Contents

 

5                Noise Impact 1

5.1               Legislation, Standards and Guidelines  1

5.2               Description of the Environment 5

5.3               Inventory of Noise Sources  9

5.4               Noise Sensitive Receivers  16

5.5               Construction Noise Impact Assessment 31

5.6               Road Traffic Noise Impact Assessment 41

5.7               Fixed Noise Sources Impact Assessment 84

5.8               Rail Noise Impact Assessment 99

5.9               Conclusion  102

5.10            References  104

 


Figures

Figure 5.1

Locations of Noise Sources during Operational Phase (Sheet 1 of 4)

Figure 5.1a

Locations of Noise Sources during Operational Phase (Sheet 2 of 4)

Figure 5.1b

Locations of Noise Sources during Operational Phase (Sheet 3 of 4)

Figure 5.1c

Locations of Noise Sources during Operational Phase (Sheet 4 of 4)

Figure 5.2

Locations of Noise Sensitive Receivers (Sheet 1 of 10)

Figure 5.2a

Locations of Noise Sensitive Receivers (Sheet 2 of 10)

Figure 5.2b

Locations of Noise Sensitive Receivers (Sheet 3 of 10)

Figure 5.2c

Locations of Noise Sensitive Receivers (Sheet 4 of 10)

Figure 5.2d

Locations of Noise Sensitive Receivers (Sheet 5 of 10)

Figure 5.2e

Locations of Noise Sensitive Receivers (Sheet 6 of 10)

Figure 5.2f

Locations of Noise Sensitive Receivers (Sheet 7 of 10)

Figure 5.2g

Locations of Noise Sensitive Receivers (Sheet 8 of 10)

Figure 5.2h

Locations of Noise Sensitive Receivers (Sheet 9 of 10)

Figure 5.2i

Locations of Noise Sensitive Receivers (Sheet 10 of 10)

Figure 5.3

Locations of Noise Sensitive Receivers (Construction Noise) (Sheet 1 of 7)

Figure 5.3a

Locations of Noise Sensitive Receivers (Construction Noise) (Sheet 2 of 7)

Figure 5.3b

Locations of Noise Sensitive Receivers (Construction Noise) (Sheet 3 of 7)

Figure 5.3c

Locations of Noise Sensitive Receivers (Construction Noise) (Sheet 4 of 7)

Figure 5.3d

Locations of Noise Sensitive Receivers (Construction Noise) (Sheet 5 of 7)

Figure 5.3e

Locations of Noise Sensitive Receivers (Construction Noise) (Sheet 6 of 7)

Figure 5.3f

Locations of Noise Sensitive Receivers (Construction Noise) (Sheet 7 of 7)

Figure 5.4

Locations of Noise Sensitive Receivers (Road Traffic Noise) (Sheet 1 of 10)

Figure 5.4a

Locations of Noise Sensitive Receivers (Road Traffic Noise) (Sheet 2 of 10)

Figure 5.4b

Locations of Noise Sensitive Receivers (Road Traffic Noise) (Sheet 3 of 10)

Figure 5.4c

Locations of Noise Sensitive Receivers (Road Traffic Noise) (Sheet 4 of 10)

Figure 5.4d

Locations of Noise Sensitive Receivers (Road Traffic Noise) (Sheet 5 of 10)

Figure 5.4e

Locations of Noise Sensitive Receivers (Road Traffic Noise) (Sheet 6 of 10)

Figure 5.4f

Locations of Noise Sensitive Receivers (Road Traffic Noise) (Sheet 7 of 10)

Figure 5.4g

Locations of Noise Sensitive Receivers (Road Traffic Noise) (Sheet 8 of 10)

Figure 5.4h

Locations of Noise Sensitive Receivers (Road Traffic Noise) (Sheet 9 of 10)

Figure 5.4i

Locations of Noise Sensitive Receivers (Road Traffic Noise) (Sheet 10 of 10)

Figure 5.5

Locations of Noise Sensitive Receivers (Fixed Noise) (Sheet 1 of 6)

Figure 5.5a

Locations of Noise Sensitive Receivers (Fixed Noise) (Sheet 2 of 6)

Figure 5.5b

Locations of Noise Sensitive Receivers (Fixed Noise) (Sheet 3 of 6)

Figure 5.5c

Locations of Noise Sensitive Receivers (Fixed Noise) (Sheet 4 of 6)

Figure 5.5d

Locations of Noise Sensitive Receivers (Fixed Noise) (Sheet 5 of 6)

Figure 5.5e

Locations of Noise Sensitive Receivers (Fixed Noise) (Sheet 6 of 6)

Figure 5.6

Locations of Noise Sensitive Receivers (Rail Noise) (Sheet 1 of 4)

Figure 5.6a

Locations of Noise Sensitive Receivers (Rail Noise) (Sheet 2 of 4)

Figure 5.6b

Locations of Noise Sensitive Receivers (Rail Noise) (Sheet 3 of 4)

Figure 5.6c

Locations of Noise Sensitive Receivers (Rail Noise) (Sheet 4 of 4)

Figure 5.7

Locations of Road Traffic Noise Mitigation Measures (Sheet 1 of 4)

Figure 5.7a

Locations of Road Traffic Noise Mitigation Measures (Sheet 2 of 4)

Figure 5.7b

Locations of Road Traffic Noise Mitigation Measures (Sheet 3 of 4)

Figure 5.7c

Locations of Road Traffic Noise Mitigation Measures (Sheet 4 of 4)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Appendices

Appendix 5.1

Locations of Prevailing Noise Measurements

Appendix 5.2

SWL of PME

Appendix 5.3

Detailed PME Inventory

Appendix 5.4

Development Programme

Appendix 5.5

Locations of Workfronts

Appendix 5.6

Photo of Existing Noise Sensitive Receivers

Appendix 5.7

Determination of Fixed Noise Criteria

Appendix 5.8

(Not Used)

Appendix 5.9

Unmitigated Construction Noise Impacts at Selected NSRs

Appendix 5.10

Sketch of Typical Temporary Noise Barrier / Enclosure

Appendix 5.11

(Not Used)

Appendix 5.12

Mitigated Construction Noise Impacts at Selected NSRs

Appendix 5.13

Computer Plots of Noise Model

Appendix 5.14

Key Map of Traffic Flow and Traffic Data

Appendix 5.14a

TD Endorsement on Traffic Forecast

Appendix 5.15a

Detailed Road Traffic Noise Level at NAPs (Unmitigated – Year 2027)

Appendix 5.15b

Detailed Road Traffic Noise Level at NAPs (Unmitigated – Year 2033)

Appendix 5.15c

Detailed Road Traffic Noise Level at NAPs (Unmitigated – Year 2053)

Appendix 5.16a

Detailed Road Traffic Noise Level at NAPs (Mitigated – Year 2027)

Appendix 5.16b

Detailed Road Traffic Noise Level at NAPs (Mitigated – Year 2033)

Appendix 5.16c

Detailed Road Traffic Noise Level at NAPs (Mitigated – Year 2053)

Appendix 5.16d

Not Used

Appendix 5.16e

Determination of Road Traffic Noise Impact on Existing Road due to the Project

Appendix 5.17

Calculation of Maximum Allowable SWL

Appendix 5.18

Calculation of Fixed Noise Sources Impacts

Appendix 5.19

Appendix 5.20

Reference Material of Track Enhancement Measures

Determination of Noise Criteria for Rail Noise Assessment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


5                                Noise Impact

5.1                         Legislation, Standards and Guidelines

5.1.1.1                The relevant legislation and associated guidance applicable to the present study for the assessment of noise impacts include:

·           Noise Control Ordinance (NCO) (Cap.400);

·           Environmental Impact Assessment Ordinance (EIA Ordinance) (Cap. 499);

·           Technical Memoranda (TM) on Noise from Construction Work other than Percussive Piling (TM-GW);

·           TM on Noise from Percussive Piling (TM-PP);

·           TM on Noise from Construction Work in Designated Areas (TM-DA);

·           TM for the Assessment of Noise from Places other than Domestic Premises, Public Places or Construction Sites (TM-Places); and

·           Technical Memorandum on Environmental Impact Assessment Process (EIAO-TM).

5.1.2                  Construction Noise

Construction Noise during Non-restricted Hours

5.1.2.1                The NCO provides the statutory framework for noise control in Hong Kong.  Assessment procedures and standards are set out in the respective TM promulgated under the NCO. 

5.1.2.2                To ensure a better environment, the EIAO-TM promulgated under the EIA Ordinance has imposed more stringent criteria.  For construction, there is no statutory limit on daytime construction noise under the NCO and related TMs.  Nevertheless, the EIAO-TM stipulates noise standards of 65 – 75 dB(A) for daytime construction activities, as shown in Table 5.1.1.

Table 5.1.1 Noise standards for daytime construction activities

Uses

Noise Standards [1], Leq (30 mins) dB(A)

0700 to 1900 hours

on any day not being a Sunday or general holiday

All domestic premises including temporary housing accommodation

75

 

Hotels and hostels

75

Educational institutions including kindergartens, nurseries and all others where unaided voice communication is required

70

65 (During examinations)

Note:

[1] The above standards apply to uses that rely on opened windows for ventilation.

Construction Noise during Restricted Hours

5.1.2.3                The NCO also provides statutory control on general construction works during restricted hours (i.e. 1900 to 0700 hours (of the next day) from Monday to Saturday and at any time on Sundays or public holidays).  The use of Powered Mechanical Equipment (PME) for construction works during restricted hours would require a Construction Noise Permit (CNP).  The TM-GW details the procedures adopted by Environmental Protection Department (EPD) for assessing such application.  The granting of a CNP is subject to conditions stated in the CNP and it may be revoked at any time for failure to comply with the permit conditions.

5.1.2.4                In addition to the general controls on the use of PME during restricted hours, the use of Specified Powered Mechanical Equipment (SPME) and the undertaking of Prescribed Construction Work (PCW) during the restricted hours in a designated area are controlled by the TM-DA. Construction plant or equipment classified as SPME under the TM-DA includes hand-held breakers, bulldozers, concrete lorry mixers, dump trucks and vibratory pokers. The PCW includes the erection or dismantling of formwork or scaffolding, hammering, loading, unloading or handling of rubble, wooden boards, steel bars, wood or scaffolding material, and the disposal of rubble through plastic chutes.

5.1.2.5                The TM-DA details the procedures that should generally be adopted by the Noise Control Authority for assessing the use of SPME during restricted hours and for determining whether a CNP would be issued.

5.1.2.6                Maximum noise levels from construction activities during restricted hours at affected Noise Sensitive Receivers (NSRs) are controlled under the TMs and shall not exceed the specified Acceptable Noise Levels (ANLs).  These ANLs are stipulated in accordance with the Area Sensitivity Ratings (ASRs) established for the NSRs. The ANLs for construction works in Designated Areas are more stringent than those given in the TM-GW and summarized in Table 5.1.2.

Table 5.1.2 ANLs for construction during restricted hours


Time Period

ANL, dB(A)

ASR A

ASR B

ASR C

All weekdays during the evening (1900 to 2300 hours), and general holidays (including Sundays) during the day-time and evening (0700 to 2300 hours)

60 (45)

65 (50)

70 (55)

All days during the night-time (2300 to 0700 hours)

45 (30)

50 (35)

55 (40)

Note: Figures in brackets are ANLs for SPME construction work in designated areas

5.1.2.7                As defined in Noise Control Designated Area Plan No. EPD/AN/NT-01, Yuen Long Areas such as Tin Liu Tsuen, Sham Chung Tsuen, Muk Kiu Tau Tsuen, etc. are within the Designated Area.

5.1.2.8                Despite any description made in this EIA, there is no guarantee that a CNP will be issued for the project construction. The Noise Control Authority will consider a well-justified CNP application, once filed, for construction works within restricted hours as guided by the relevant TMs issued under the NCO. The Noise Control Authority will take into account contemporary conditions / situations of adjoining land uses and any previous complaints against construction activities at the site before making a decision in granting a CNP. Nothing in this EIA report shall bind the Noise Control Authority in making a decision.  If a CNP is to be issued, the Noise Control Authority shall include in it any conditions demand.  Failure to comply with any such conditions will lead to cancellation of the CNP and prosecution under the NCO.  According to the proposed construction methodology for the Project, night-time construction is not anticipated.

Percussive Piling

5.1.2.9                Under the TM-PP, CNPs are also required for percussive piling involving the use of diesel, pneumatic and / or steam hammer.  This TM specifies the permitted hours and other conditions for percussive piling.  Table 5.1.3 lists the acceptable percussive piling noise levels for various types of NSR.

Table 5.1.3 ANLs for percussive piling

NSR Window Type or Means of Ventilation

ANL (dB(A))

(i)    NSR (or part of NSR) with no window or other opening

100

(ii)   NSR with central air conditioning system

90

(iii)  NSR with windows or other openings but without central air  conditioning system

85

5.1.2.10            Depending on the numbers and types of piling machines and the separation from NSRs, percussive piling may be restricted to 12, 5 or 3 hours per day.  For NSRs that are particularly sensitive to noise, such as hospitals, medical clinics, educational institutions and courts of law, a further reduction of 10 dB(A) shall be applied to the above ANLs. According to the proposed construction methodology for the Project, percussive piling is not anticipated.

5.1.3                  Operational Noise

5.1.3.1                The EIAO-TM (Annex 5 of TM) has stipulated the noise standards for various noise sources as shown in Table 5.1.4. It should, however, be noted that the following noise criteria are only applicable to uses that rely on opened windows for ventilation.

Table 5.1.4 Noise standards for operational phase

Common Uses

Noise Standards[1]

Aircraft Noise (Noise Exposure Forecast: NEF)

Helicopter Noise

Lmax dB(A)

0700-1900 hours

Road Traffic Noise

L10 (1hour) dB(A)

Rail

Noise[2]

Fixed Noise

Sources

All domestic premises including temporary housing accommodation

25

85

70

(a) The appropriate ANLs shown in Table 2 of the Technical Memorandum for the Assessment of Noise from Places Other than Domestic Premises, Public Places or Construction Sites and

(b) Lmax (2300-0700 hours)

= 85dB(A)

(a) 5dB(A) below the appropriate ANLs shown in Table 2 of the Technical Memorandum for the Assessment of Noise from Places Other than Domestic Premises, Public Places or Construction Sites, or

(b) the prevailing background noise levels (For quiet areas with level 5 dB(A) below the ANL)

Hotel and hostels

25

85

70

Offices

30

90

70

Educational institutions including kindergartens, nurseries and all others where unaided voice communication is required

25

85

65

Places of public Worship and courts of law

25

85

65

Hospitals, clinics, convalescences and homes for the aged, diagnostic rooms, wards

25

85

55

Notes:

[1] The above standards apply to uses that rely on opened windows for ventilation.

[2] The above standards should be viewed as the maximum permissible noise levels assessed at 1m from the external facade.

Road Traffic Noise

5.1.3.2                The criteria for assessing road traffic noise is given in the EIAO-TM and tabulated in Table 5.1.4. For domestic premises, hotels, hostels and offices, the criterion is 70dB(A). For educational institutions and places of public worship, the criterion is 65dB(A). For hospitals, clinics etc, a more stringent criterion of 55dB(A) is stipulated. It should be noted that all these criteria only apply to NSRs that rely on opened windows for ventilation.

Fixed Noise Sources

5.1.3.3                Operational noise from fixed noise sources is controlled under the TM-Places. To plan for a better environment, the EIAO-TM has specified the following requirements for the planned fixed noise sources, whichever is more stringent. 

·         5dB(A) below the appropriate ANLs in the TM-Places; or

·         the prevailing background noise levels.

5.1.3.4                Besides, ANL stipulated in the TM-Places has been adopted in the evaluation of potential cumulative fixed noise sources impact assessment from existing and planned fixed noise sources.

5.1.3.5                The ANLs for different ASRs during different periods are summarised in Table 5.1.5.

Table 5.1.5 ANLs for fixed noise sources

Time Period

ANL, dB(A)

ASR A

ASR B

ASR C

Day (0700 to 1900 hours)

60

65

70

Evening (1900 to 2300 hours)

60

65

70

Night (2300 to 0700 hours)

50

55

60

5.1.3.6                For assessing fixed noise sources, the ASRs at the NSRs are defined in accordance with the relevant TMs. More details are discussed in Section 5.4.

Rail Noise

5.1.3.7                The noise criterion for assessing rail noise is given in Table 5.1.4.  In addition, noise level during the period between 11:00pm and 7:00am of the following day should not exceed Lmax 85dB(A). Similar to road traffic noise assessment, all these criteria only apply to NSRs relying on opened windows for ventilation.

5.2                         Description of the Environment

5.2.1                  Existing Environment

5.2.1.1                As discussed in Section 1, the Potential Development Area (PDA) (As shown in Figure 1.1) is bounded by Yuen Long Highway (YLH) to the north, domestic premises such as Tin Liu Tsuen, Sham Chung Tsuen, Muk Kiu Tau Tsuen, etc. and some rural industrial operations to the east, Tai Lam Country Park to the south, hillside to the west.  The current landuse is a mixed zoning of Residential, Government, Institution or Community (G/IC), Village Type Development, Industrial and Undetermined. The existing noise climate in the north of the PDA is dominated by road traffic noise from YLH, Tong Yan San Tsuen (TYST) Interchange, Tin Shui Wai West (TSWW) Interchange and industrial operations in the northern part. There are scattered rural industrial operations in the eastern and southern parts of the PDA.

5.2.2                  Prevailing Noise Levels

5.2.2.1                Prevailing noise levels have been measured in the vicinity of the PDA boundary from 2013 to 2017 during daytime, evening and night-time periods. The selected measurement locations cover the accessible areas within and in its immediate vicinity of the PDA (PNM-01 to PNM-08). Appendix 5.1 shows the locations of prevailing noise measurement.

5.2.2.2                Given the future development would comprise of high-rise residential and commercial developments, multi-storey storage compound and open storage, whereas the existing environment is comprised of low-rise residential development, scattered rural industrial operations and open storage, the prevailing noise measurements conducted in the vicinity of the existing site could not reflect the future noise climate.  Therefore, prevailing noise measurements were also selected at alternative locations for reference with a noise climate similar to the future development in these areas.  PNM-R1 is located at Long Ping Estate which is a high rise residential area with public housing in Yuen Long, and is therefore considered representative of the future prevailing noise level of the Area 2 and Area 3 development areas. Another reference prevailing noise measurement location PNM-R2 is located in Wang Chau, which is close to low-rise residential and close to industrial estate in Yuen Long, and is therefore representative of the future prevailing noise level of the Area 1 within the PDA. Appendix 5.1 shows the locations of these measurement points. A summary of the prevailing noise measurement results is given in Table 5.2.1.

Table 5.2.1 Prevailing noise measurements

Monitoring Location[1]

Measurement Location

Prevailing Noise Levels[2], dB(A)

Dominant Noise Sources

Day[3]

Evening[3]

Night[3]

PNM-01

Kung Um Road near Muk Kiu Tau Tsuen

72 – 74

69 – 70

67 – 69

Traffic noise from Kung Um Road and noise from industrial activities

PNM-02

Lutheran Academy

 62 – 65

59 – 60

56 – 60

Traffic noise from Lam Hau Tsuen Road and noise from industrial activities

PNM-03

Shan Ha Tsuen

57 – 58

53 – 55

53 – 54

Minor noise from industrial activities

PNM-04

Fui Sha Wai

60 – 62

60 – 61

59 – 60

Traffic noise from local road near Fui Sha Wai and noise from industrial activities

PNM-05

Park Villa

60 – 62

48 – 50

46 – 48

Minor noise from industrial activities

PNM-06

South of Shan Ha Tsuen

58 – 60

53 – 54

53 – 54

Minor noise from industrial activities

PNM-07

Pak Sha Shan Road

66 – 67

57 – 60

51 – 54

Traffic noise from Kung Um Road and Pak Sha Shan Road and minor noise from industrial activities

PNM-08

Tong Yan San Tsuen

65 – 66

59 – 60

57 – 60

Traffic noise from TYST Road and minor noise from industrial activities

PNM-R1

Long Ping Estate

71 – 72

65 – 67

58 – 60

Traffic noise from Long Tin Road and community noise

PNM-R2

Wang Chau

73 – 74

67 – 68

61 – 62

Traffic noise from Fuk Hi Street and minor noise from industrial activities

Note:

[1]       PNM represents prevailing noise measurement locations which are indicated in Appendix 5.1.

[2]       The noise measurement descriptor is A-weighted equivalent continuous sound pressure level (Leq) measured using Type 1 sound level meter.  Measurements were conducted in January 2013, February 2013, May 2013, January 2014, June 2015, June 2016, January 2017 and February 2017, covering typical daytime, evening and night-time periods (unless specified otherwise).  Depending on site conditions at the measurement location, a series of measurements with duration of 10-20 minutes were taken during non-peak traffic hours to represent the prevailing background noise. Facade correction was adopted.

[3]       Day: 0700 to 1900 hours, Evening: 1900 to 2300 hours, Night: 2300 – 0700 hours.

5.2.3                  Previous Studies and Current Studies

Previous Studies

Hung Shui Kiu New Development Area (HSK NDA)Planning and Engineering Study

5.2.3.1                The HSK NDA EIA report has been approved in December 2016 (AEIAR-203/2016). The HSK NDA is located at the north west of the YLS PDA. Their 300m noise assessment area has covered a small area near Long Tin Road. The relevant NSRs and assessment results have been reviewed and considered as necessary.  Cumulative impacts during both construction and operational phases are anticipated.

Engineering Works at Lin Cheung Road Site, Sham Shui Po and Wang Chau, Yuen Long

5.2.3.2                To support the proposed public housing development, CEDD commissioned the study for the provision of essential infrastructure. The first phase of building works of the housing flats at Wang Chau is targeted to commence in mid 2018.

5.2.3.3                As the works boundary of the proposed Wang Chau site is located more than 1km away from the YLS PDA, cumulative impact during construction phase is not anticipated. However, road traffic noise impact during operational phase is anticipated from the induced traffic.

Improvement to Pok Oi Interchange

5.2.3.4                To improve the traffic capacity of Pok Oi Interchange to relieve the existing traffic pressure and meet the future traffic demand. The Project includes provision of an additional lane of YLH (Kowloon bound) at Pok Oi Interchange, construction of a slip road connecting the elevated and ground level sections of YLH (Tuen Mun bound), and construction of a segregated left-turn lane at the approach road of Pok Oi Roundabout near Pok Oi Hospital.

5.2.3.5                The scheme commenced in late 2012 and is completed in 2016. Cumulative impact during construction phase is not anticipated. Road traffic noise impact during operational phase is anticipated from the induced traffic.

Current Studies

Site Formation and Infrastructural Works for the Development at Long Bin, Yuen Long, Feasibility Study

5.2.3.6                A District Council (DC) Discussion Paper “Consultation on the proposed amendments to the approved TYST Outline Zoning Plan No. S/YL-TYST/10” has been discussed at the DC meeting on 21 February 2017. As mentioned in the DC Discussion Paper, the project area would be approximate 10ha for developing 11 blocks of public housing for accommodation of a population of 31,200. The construction period and population intake under this project would be divided into 2 stages, in which the population intake years of stages 1 and 2 are anticipated to be Year 2024/25 and Year 2027/28 respectively.

5.2.3.7                The project area of the development at Long Bin is located approximately 150m away from the YLS PDA opposite to YLH.  Available information relating to Long Bin development has also been reviewed.  However, since the detailed construction programme, plant inventory, etc. are yet to be developed by the respective project proponent, only committed and planned NSR has been added within the Long Bin development to account for the impacts from the development of YLS PDA.

5.2.3.8                In addition, road traffic noise impact during operational phase is anticipated from the induced traffic. Cumulative impact on its planned receivers have also been assessed under this project.

Site Formation and Infrastructural Works for the Development near Tan Kwai Tsuen, Yuen Long – Feasibility Study

5.2.3.9                A DC Discussion Paper “Consultation on the proposed amendments to the approved TYST Outline Zoning Plan No. S/YL-TYST/10” has been discussed at the DC meeting on 21 Feb 2017. As mentioned in the DC Discussion Paper, the project area would be approximate 10.6ha for developing 7 blocks of public housing for accommodation of a population of 20,600, and the population intake year is anticipated to be Year 2027/28.

5.2.3.10            The project area of the development at Tan Kwai Tsuen is located approximately 300m away from the YLS PDA next to the Tan Kwai Tsuen Fresh Water Service Reservoir along YLH. Road traffic noise impact during operational phase are anticipated from the induced traffic.

Property Development of Kam Sheung Road Station and its Adjoining Areas

5.2.3.11            Land Use Review has been conducted to examine the development potential of the Kam Tin South and Pat Heung Areas. The Land Use Review has demonstrated that it would be technically feasible to transform Kam Tin South and Pat Heung into a sustainable suburban township with enhancement on infrastructure and utility services.

5.2.3.12            As the area is located more than 1km away from the YLS PDA, cumulative impact during construction phase is not anticipated. However, road traffic noise impact during operational phase is anticipated from the induced traffic.

5.3                         Inventory of Noise Sources

5.3.1                  Construction Phase

5.3.1.1                As discussed in Section 3.7, the PDA is divided into three areas and will be implemented in four stages. The tentative construction period for these four stages are summarized as below:

·         Stage 1 between Year 2020 and Year 2029;

·         Stage 2 between Year 2022 and Year 2033;

·         Stage 3 between Year 2031 and Year 2038; and

·         Stage 4 between Year 2032 and Year 2038.

5.3.1.2                Potential construction noise impacts would be arising from the use of PME during the following major construction works:

·         Site clearance;

·         Site formation;

·         Superstructure of residential, G/IC, commercial, industrial development and open space areas;

·         Construction of internal and external roads;

·         Road widening of existing roads;

·         Construction of sewage treatment works, sewage pumping stations; and

·         Construction of utilities.

5.3.1.3                Other minor works including ground investigation (GI), temporary traffic diversion, etc. would unlikely cause adverse environmental impacts.

5.3.1.4                The plant inventory as provided by the Project Engineer and the details of PME adopted for the assessment are presented in Appendix 5.2 and Appendix 5.3 according to the development programme and work site locations as given in Appendix 5.4 and Appendix 5.5 respectively.  The construction plant inventory has also been confirmed with relevant government departments.

5.3.2                  Operational Phase

5.3.2.1                During operational phase, the identified noise sources include the following:

·         Existing and planned roads within 300m from the PDA boundary and the associated infrastructure works;

·         Existing and planned fixed noise sources; and

·         Rail noise from the proposed Environmental Friendly Transport System (EFTS) within the PDA boundary.

Road Traffic Noise

Existing and Planned Roads

Existing Roads

Comprises existing roads surrounding the PDA including:

·       YLH

·       Long Tin Road

·       Hung Tin Road

·       Section of Kung Um Road

·       Section of TYST Road

·       Sha Tseng Road

·       Shan Ha Road

·       Lam Yu Road

·       Castle Peak Road

·       Shap Pat Heung Road

·       Tai Tong Road

·       Lam Hau Tsuen Road

·       Lam Hi Road

·       Tai Shu Ha Road East

·       Fung Ki Road

·       Fung Cheung Road

·       Siu Sheung Road

·       Sham Chung Road

·       Town Park Road South

·       San Hi Tseun Street

·       Ping Tong Street East

·       Ping Tong Street South

·       Ping Tong Street West

·       San Fui Street

·       Hung Shui Kiu Tin Sam Road

Kung Um Road and TYST Road will have road improvements to increase the carriageway width to standard width 6.75m.  It will remain same configuration (i.e. two lane local distributor).  Low noise road surfacing (LNRS) will be provided together with the road improvement works. 

Planned Designated Project (DP) Roads (within PDA)

Comprises:

·       TSWW Interchange (trunk roads and underpass)

·       TYST Interchange (primary distributor roads)

·       Road D1 and D2 (district distributor roads) (As shown in Figure 5.1)

Planned Non – DP Roads (within PDA)

Comprises local roads within the PDA including:

·       Local Roads (L1 – L27)

·       Lam Tai East Road

·       Lam Tai West Road

·       Section of Kung Um Road

·       Tan Kwai Tsuen Road

·       Section of TYST Road

Planned DP Roads (outside PDA)

Comprises:

·       TSWW Interchange (trunk roads)

·       TYST Interchange (primary distributor roads) (As shown in Figure 5.1).

Planned Non – DP Roads (outside PDA)

Comprises local roads including:

·       Long Ho Road

·       Shung Ching Road

·       Tai Kei Leng Road

·       Shan Ha Road

·       Yuen Ching Road

·       Slip roads to YLH from Kung Um Road eastward

5.3.2.2                All roads mentioned above will have certain road traffic noise impacts on both existing and committed and planned NSRs, and have been suitably considered in the current assessment.  Key existing and planned road traffic noise sources are illustrated in Figure 5.1.

Fixed Noise Sources

5.3.2.3                The area for fixed noise sources impact assessment includes i) 300m assessment area for committed and planned NSRs affected by planned and existing fixed noise sources; ii) 300m assessment area for planned fixed noise sources. Key existing and planned fixed noise sources are illustrated in Figure 5.1 and are summarised in Table 5.3.1.

Table 5.3.1 List of key existing and planned fixed noise sources

Types

Noise Sources

Reference Locations[1]

Existing Noise Sources

Industrial Zone (OZP No.: S/YL-TYST/10)

Outside PDA near Fui Sha Wai

Livestock Farm[1]

AGR 3.1

Lung Tin Sewage Pumping Station[1]

To the northwest of Tin Liu Tsuen (OU2.2)

Planned Noise Sources

Electricity Substation

OU2.1

Refuse Collection Point and Sewage Pumping Station

OU1.12, OU2.2

Sewage Treatment Works

OU3.3

Divisional Fire Station and  Ambulance Depot

G2.3

Public Transport Interchange

OU1.1, OU2.3, OU3.2a, in the vicinity of Yoho Midtown

Sports Centre and Market

G2.1

District Police Station

G3.2

Open Storage

OU1.6

Storage Use

OU1.5, OU1.7, OU1.9, OU1.10

Storage and Workshop

OU1.8

Retention Tank

OU1.11

Government Reserve (intended for Government Depot)

G3.1, G3.3

Note:

[1] Existing use retained in the PDA.

5.3.2.4                The nature and operation of these noise sources are described as follows.

Existing Industrial Zone (Outside PDA near Fui Sha Wai)

5.3.2.5                An industrial zone (“I” zone) is located outside the PDA to the north of YLH and to the east of Fui Sha Wai.  The nearest existing NSR is within “I” zone and the nearest planned NSR is located at about 330m away from the “I” zone. Fixed noise sources impacts have been addressed in this noise assessment.

Existing Livestock Farm (AGR3.1)

5.3.2.6                A livestock farm (AGR3.1) is located in Area 3 within the PDA and will be retained under the Recommended Outline Development Plan (RODP).  The major noise sources of the livestock farm would mainly consist of ventilation system with louver and generator etc.  The livestock farm (AGR3.1) is located at 90m from the nearest existing NSR and 185m from the nearest planned NSR.  Fixed noise sources impacts have been addressed in this noise assessment.

Existing Lung Tin Sewage Pumping Station (OU2.2)

5.3.2.7                The existing Lung Tin sewage pumping station (LTSPS) is located in Area 2 within PDA at about 20m to the south of YLH and about 20m to the west of Kung Um Road.  The major noise sources of the LTSPS (OU2.2) would mainly consist of ventilation system with louver.   The LTSPS (OU2.2) is located at 75m from the nearest existing NSR and 190m from the nearest planned NSR.  Fixed noise sources impacts have been addressed in this noise assessment.

Planned Electricity Substation (OU2.1)

5.3.2.8                An electricity substation (ESS) (OU2.1) is planned to be located in Area 2 at the middle of the PDA at about 3m to the west of Kung Um Road.  The major noise sources of the ESS are from the operation of transformers and ventilation systems.  The ESS (OU2.1) is located at 40m from the nearest existing NSR and 95m from the nearest planned NSR.  Fixed noise sources impacts have been addressed in this noise assessment.

Planned Refuse Collection Point & Sewage Pumping Station (OU1.12, OU2.2)

5.3.2.9                Two refuse collection points (RCP) and two sewage pumping stations (SPS) (OU1.12, OU2.2) are planned within the PDA. One RCP and one SPS (OU1.12) will be located Area 1 at the northern part of the PDA to south of YLH and east of TYST Interchange.  They will be located at about 200m from the planned PTI (OU1.1) and retention tank (OU1.11).  The nearest existing NSR is located at about 70m from the RCP and SPS (OU1.12) and the nearest planned NSR is located at about 100m from the RCP and SPS (OU1.12).

5.3.2.10            Another RCP and SPS (OU2.2) will be located Area 2 at the northern part of the PDA to south of YLH and in the vicinity of the LTSPS.  The nearest existing NSR is located at about 70m from the RCP and SPS (OU2.2) and the nearest planned NSR is located at about 165m from the RCP and SPS (OU2.2). 

5.3.2.11            The major noise sources of RCP and SPS are from the operation of pumps, mechanically racked screens, transformer and ventilation fan of deodorization unit.  Fixed noise sources impacts have been addressed in this noise assessment.

Planned Sewage Treatment Works (OU3.3)

5.3.2.12            A sewage treatment works (STW) (OU3.3) is planned to be located in Area 3 at the southern end of the PDA to the southwest of the existing Wong Nai Tun Tsuen.  The major noise sources of the STW are from the operation of sewage facilities and ventilation system.  The STW (OU3.3) is located at 260m from the nearest existing NSR and 180m from the nearest planned NSR.  Fixed noise sources impacts have been addressed in this noise assessment.

Planned Divisional Fire Station and Ambulance Depot (G2.3)

5.3.2.13            A divisional fire station and ambulance depot (G2.3) is planned to be located in Area 2 at the middle of the PDA to the south of the existing Shan Ha Tsuen.  The planned divisional fire station and ambulance depot (G2.3) is located at 270m from the nearest existing NSR and 60m from the nearest planned NSR. 

5.3.2.14            The major noise sources from the planned divisional fire station and ambulance depot operations include loudspeakers, siren, vehicle sirens, etc. In addition, the operation of a fire station also require certain fixed noise sources such as condenser, transformer, etc. These noise may be potential nuisance to the nearby NSRs, however their occurrences are on as-needed basis and last for short duration only.  Fixed noise sources impacts have been addressed in this noise assessment.

Planned Public Transport Interchange (OU1.1, OU2.3, OU3.2a, in the vicinity of Yoho Midtown)

5.3.2.15            Three Public Transport Interchange (PTIs) (OU1.1, OU2.3, OU3.2a) are planned within the PDA and one PTI is planned near Yoho Midtown outside the PDA.  One of the PTIs (OU1.1) will be located in Area 1 to south of TYST Interchange adjacent to a planned retention tank (OU1.11) and about 200m from a RCP and SPS (OU1.12).  The nearest existing NSR is located at about 110m away from this PTI and the worst affected planned NSR is located at about 62m away from this PTI. 

5.3.2.16            Another PTI (OU2.3) will be located in Area 2 at the middle of the PDA at about 35m to west of Kung Um Road adjacent to a planned sports centre and market (G2.1).  The nearest existing NSR is located at about 80m away from this PTI and the worst affected planned NSR is located at about 50m away from this PTI. 

5.3.2.17            Another PTI (OU3.2a) will be located in Area 3 to the west of Pak Sha Tsuen and at about 25m to the west of Kung Um Road adjacent to a planned police station (G3.2). The nearest existing NSR is located at about 145m away from this PTI and the worst affected planned NSR is located at about 29m away from this PTI.

5.3.2.18            The fourth PTI will be located outside the PDA to the east of Yoho Midtown and north of Kwong Ming Ying Loi School. The nearest existing NSR is located at about 10m away from this PTI.  There are no planned NSR in the vicinity of this PTI.

5.3.2.19            The major fixed noise sources of PTIs include the operation of ventilation fans, bus idling, etc..  All the four PTIs would be decked under proposed building structures and designed with no line-of-sight at the noise sensitive use.  In addition, the PTI would be oriented with ingress and egress facing away from NSRs in close vicinity.  Fixed noise sources impacts have been addressed in this noise assessment.

Planned Sports Centre and Market (G2.1)

5.3.2.20            A sports centre and a market (G2.1) are planned to be co-located in Area 2 at the middle of the PDA at about 25m to west of Kung Um Road.  The major fixed noise sources of the sports centre and market include chiller, ventilation louver, etc..  The planned sports centre and a market (G2.1) is located at 85m from the nearest NSR and 10m from the nearest planned NSR.  Fixed noise sources impacts have been addressed in this noise assessment.

Planned District Police Station (G3.2)

5.3.2.21            A district police station (G3.2) is planned to be located in Area 3 to the west of Pak Sha Tsuen and at about 150m to the west of Kung Um Road.  The major fixed noise sources of the district police station include chiller, ventilation louver, etc..  The planned district police station (G3.2) is located at 240m from the nearest NSR and 8m from planned NSR.  Fixed noise sources impacts have been addressed in this noise assessment.

Planned Sites for Storage Use, Open Storage as well as Storage and Workshop (OU1.5, OU1.6, OU1.7, OU1.8, OU1.9, OU1.10)

5.3.2.22            Several sites in Area 1 at the north western part of the PDA to the south of YLH are planned for open storage, storage use as well as storage and workshop (OU1.5, OU1.6, OU1.7, OU1.8, OU1.9, OU1.10).  The major fixed noise sources of the sites for storage use, open storage as well as storage and workshop include loading and unloading, forklifting, chiller, ventilation louver, etc..  The nearest existing NSR to these OU sites is located at about 45m from the storage use site (OU1.7) and the nearest planned NSR to these OU sites is located at about 35m from the storage use site (OU1.10).  Fixed noise sources impacts have been addressed in this noise assessment.

Planned Retention Tank (OU1.11)

5.3.2.23            A retention tank (OU1.11) is planned to be located in a district open space in Area 1 near TYST Interchange will be installed underground with pumps and ventilation fans operating above ground. The planned retention tank (OU1.11) is located at 105m from the nearest existing NSR and 32m from the planned NSR.  Fixed noise sources impacts have been addressed in this noise assessment.

Planned Government Reserve (Intended for Government Depot) (G3.1, G3.3)

5.3.2.24            Two sites in Area 3 at the southern end of the PDA to the southwest of the existing Wong Nai Tun Tsuen are planned for government depot use (G3.1 and G3.3).  The major noise sources of the government depot include the operation of chiller, ventilation louver, maintenance activities, etc..  The planned government depot (G3.1, G3.3) is located at 155m from the nearest existing NSR and 280m from the nearest planned NSR.  Fixed noise sources impacts have been addressed in this noise assessment.

Rail Noise

5.3.2.25            An EFTS is proposed to serve the community within the PDA and the tentative alignment is given in Figure 5.1.  This proposed alignment of EFTS connects to MTR Tin Shiu Wai Station via the proposed EFTS of the HSK NDA.  Therefore, the operational characteristics of EFTS such as the configuration, operation details, operating speed, etc. will be similar to those in the approved HSK NDA EIA Report (AEIAR-203/2016).  Rail noise impacts have been addressed in this noise assessment.

5.4                         Noise Sensitive Receivers

5.4.1.1                With reference to Annex 13 of the EIAO-TM, NSRs shall include residential uses (all domestic premises including temporary housing), institutional uses (educational institutions including kindergarten and nurseries), hospitals, medical clinics, homes for the aged, convalescent homes, places of public worship, libraries, court of law, performing arts centres, auditoria and amphitheatres, country park and others.

5.4.1.2                The assessment area for noise impact should generally be defined by a distance of 300m from the PDA boundary and the associated infrastructure works. Representative NSRs within a distance of 300m from the PDA boundary and the associated infrastructure works have been identified with the first layer of NSRs selected for assessment. These NSRs include both the existing and committed and planned sensitive developments during both construction and operational phase. The planned sensitive development within the RODP and the indicative layout has been confirmed by Lands Department and Planning Department.

5.4.1.3                The representative existing and committed and planned NSRs are identified by means of reviewing topographic maps, aerial photos, land status plans, relevant Outline Zoning Plans (OZP), Outline Development Plans, Layout Plans and other relevant published land use plans, including plans and drawings published by Lands Department and land use and development applications approved by the Town Planning Board, and supplemented by site inspections. Photos of the representative existing NSRs are shown in Appendix 5.6.

5.4.1.4                For the planned clinic and social welfare building, they are anticipated to be provided with central air-conditionings and would not rely on openable window for ventilation and therefore the standards in Table 5.1.4 do not apply. The representative NSRs identified are summarized in Table 5.4.1 and their locations are shown in Figure 5.2.

Table 5.4.1 Existing, committed and planned NSRs

NSR[1]

NSR Description[2]

Use[3]

No. of Storey[5]

Existing NSRs (Within PDA)

E1_CLMY

Chuk Lam Ming Yuen Monastery

W

2

E1_ELD

Eldorado

R

4

E1_FLG

Fu Lai Garden

R

3

E1_GR

Greenville Residence

R

4

E1_KLG

Kam Lai Garden

R

3

E1_KLK

Kam Lan Koon

W

1

E1_KV

Kisland Villa

R

4

E1_LHT

Lam Hau Tsuen

R

3

E1_MG

Marbella Gardens

R

4

E1_PH

The Parkhill

R

4

E1_PV

Park Villa

R

3

E1_RLS

Recours La Serre

R

4

E1_SHT

Shan Ha Tsuen

R

3

E1_TYST

Tong Yan San Tsuen

R

1-4

E1_WG

Winsor Garden

R

4

E1_YHT

Yeung Hau Temple

W

1

E2_MKTT

Muk Kiu Tau Tsuen

R

1

E2_TLT

Tin Liu Tsuen

R

3

E2_PST

Pak Sha Tsuen

R

2

E2_TLY

Tin Lung Yuen

R

3

Existing NSRs (Outside PDA)

E4_CFG

Chun Fai Garden

R

3

E4_CPG

Chung Pak Garden

R

3

E4_FSW

Fui Sha Wai

R

1-3

E4_FWM

Fu Wa Mansion

R

3

E4_GM

Garden Maple

R

3

E4_HCG

Hang Cheong Garden

R

3

E4_HG

Hoover Garden

R

3

E4_HYTT

Ha Yau Tin Tsuen

R

3

E4_HTS

Ha Tsuen Shi

R

3

E4_JC

Jasper Court

R

4

E4_KMYLS

Kwong Ming Ying Loi School

E

7

E4_KTST

Kong Tau San Tsuen

R

3

E4_LA

Lutheran Academy

E

8

E4_LFM

Lung Fai Mansion

R

3

E4_LG

La Grove

R

19

E4_LHT

Lam Hau Tsuen

R

1-3

E4_LHWT

Lam Hau Wai Tsuen

R

1-2

E4_LTG

Lung Teng Garden

R

3

E4_LTT

Lung Tin Tsuen

R

1-3

E4_MKT

Muk Kiu Tau Tsuen

R

3

E4_OHP

One Hyde Park

R

2

E4_PCG

Pui Chak Garden

R

2-3

E4_PHY

Pitt Hwa Yuen

R

3

E4_PS

Park Signature

R

22

E4_PST

Pak Sha Tsuen

R

2-3

E4_PSV

Parkside Villa

R

10

E4_RP

Regent's park

R

2-3

E4_SCST

Sham Chung San Tsuen

R

3

E4_SCT

Sham Chung Tsuen

R

3

E4_SG

Scenic Gardens

R

14

E4_SHT

Shan Ha Tsuen

R

2-3

E4_SMG

Sun Mei Garden

R

3

E4_STG

Sun Tong Garden

R

3

E4_SV

Sereno Verde

R

13

E4_SYTT

Sheung Yau Tin Tsuen

R

2

E4_SPT

Shek Po Tsuen

R

3

E4_TKL

Tai Kei Leng

R

1

E4_TKLT

Tai Kei Leng Tsuen

R

2-3

E4_TKT

Tan Kwai tsuen

R

3

E4_TLT

Tin Liu Tsuen

R

3

E4_TR

The Reach

R

24

E4_TTT

Tai Tao Tsuen

R

3

E4_TYST

Tong Yan San Tsuen

R

2

E4_UT

Uptown

R

3-19

E4_WNT

Wong Nai Tun Tsuen

R

1-3

E4_WY

Wa Yuen

R

3

E4_YH

Yoho Town

R

34-37

E4_YHM

Yoho Midtown

R

40

Committed and Planned NSRs

P_E1.1

Planned primary school

E

8

P_E2.1

Planned primary school

E

8

P_E2.2

Planned primary school

E

8

P_E2.3

Planned primary school

E

8

P_E2.4

Planned primary school

E

8

P_E3.1

Planned primary school

E

8

P_E3.2

Planned primary school

E

8

P_E3.3

Planned primary school

E

8

P_G2.4

Married quarters

R

19

P_R1.1

Private housing

R

4

P_R1.2

Private housing

R

4

P_R1.3

Private housing

R

4-5

P_R1.4

Private housing

R

4-5

P_R1.5

Private housing

R

4

P_R1.6

Private housing

R

3-4

P_R1.7

Private housing

R

4-5

P_R1.8

Private housing

R

4

P_R1.9

Private housing

R

3

P_R1.10

Private housing

R

6

P_R1.11

Private housing

R

5

P_R1.12

Private housing

R

4

P_R1.13

Private housing

R

4-5

P_R1.14

Private housing

R

4

P_R1.15

Private housing

R

4

P_R1.16

Private housing

R

4

P_R2.1a

Private housing

R

30-32

P_R2.1b

Public housing

R

32-34

P_R2.2

Public housing

R

32-34

P_R2.3

Public housing

R

31-34

P_R2.4

Public housing

R

28-34

P_R2.5

Public housing

R

22-31

P_R2.6a

Private housing

R

20-26

P_R2.6b

Private housing

R

18-24

P_R2.6c

Private housing

R

20-22

P_R2.6d

Private housing

R

20-22

P_R2.7

Private housing

R

9-11

P_R2.8

Public housing

R

33

P_R3.1a

Private housing

R

17

P_R3.1b

Private housing

R

20-22

P_R3.1c

Private housing

R

11

P_R3.1d

Private housing

R

12

P_R3.1e

Private housing

R

11

P_R3.2

Private housing

R

22

P_R3.3

Private housing

R

20

P_R3.4a

Private housing

R

18

P_R3.4b

Private housing

R

14

P_R3.5a

Private housing

R

18-19

P_R3.5b

Private housing

R

21-22

P_R3.6a

Private housing

R

9

P_R3.6b

Private housing

R

8

P_OU1.1

Private housing

R

12

P_OU1.2a

Private housing

R

12

P_OU1.3

Private housing

R

10-11

P_OU2.3

Private housing

R

11

P_OU3.2a

Private housing

R

11

P_OU3.2b

Private housing

R

9

P_VR1.1

Village rehousing

R

3

P_VR2.1

Village rehousing

R

3

P_VR3.1

Village rehousing

R

3

P_HSK[4]

Planned residential development in HSK NDA

R

28-29

P_LBIH[4]

Planned public housing development in Long Bin

R

40

Note:

[1] The assessment only includes NSRs which rely on opened windows for ventilation.

[2] The first layer of NSRs which are most affected by the project within 300m from the PDA boundary and the associated infrastructure works is included.

[3] R – Residential Premises, E – Educational Institutions; W – Places of Public Worship; C – Clinics, Residential Care Home for the Elderly (RCHE). The land uses of the planned NSRs within the PDA are identified based on the RODP.

[4] Planned NSRs outside PDA.

[5] No. of storeys with noise-sensitive uses.

5.4.2                  Construction Noise

5.4.2.1                For construction noise assessment, the assessment area includes those within 300m from the PDA boundary and the associated infrastructure works.  The first layer of NSRs that would be located closest to the construction activities have been selected from Table 5.4.1. The locations of representative NSRs and Noise Assessment Points (NAPs) for various stages for construction noise assessment are shown in Figure 5.3 and are summarised in Table 5.4.2.

Table 5.4.2 Representative NSRs and NAPs for construction noise assessment

Stage

NSR[1]

NSR Description[2]

Use[3]

NAP

Existing NSRs (Within PDA)

Stage 1

E1_SHT

Shan Ha Tsuen

R

E1_SHT_R01

E1_SHT

Shan Ha Tsuen

R

E1_SHT_R04

E2_TLY

Tin Lung Yuen

R

E2_TLY_R01

Stage 2

E1_RLS

Recours La Serre

R

E1_RLS_R02

E1_ELD

Eldorado

R

E1_ELD_R02

E1_PV

Park Villa

R

E1_PV_R02

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R07

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R13

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R32

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R36

E1_MG

Marbella Gardens

R

E1_MG_R02

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R05

E1_SHT

Shan Ha Tsuen

R

E1_SHT_R01

E1_SHT

Shan Ha Tsuen

R

E1_SHT_R04

E2_TLY

Tin Lung Yuen

R

E2_TLY_R01

E2_MKTT

Muk Kiu Tau Tsuen

R

E2_MKTT_R01

Stage 3

E2_MKTT

Muk Kiu Tau Tsuen

R

E2_MKTT_R01

Stage 4

E1_RLS

Recours La Serre

R

E1_RLS_R02

E1_ELD

Eldorado

R

E1_ELD_R02

E1_PV

Park Villa

R

E1_PV_R02

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R07

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R13

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R36

E1_MG

Marbella Gardens

R

E1_MG_R02

E1_PH

The Parkhill

R

E1_PH_R01

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R05

E1_SHT

Shan Ha Tsuen

R

E1_SHT_R01

E1_SHT

Shan Ha Tsuen

R

E1_SHT_R04

E2_TLY

Tin Lung Yuen

R

E2_TLY_R01

Existing NSRs (Outside PDA)

Stage 1

E4_SHT

Shan Ha Tsuen

R

E4_SHT_R07

E4_LTT

Lung Tin Tsuen

R

E4_LTT_R01

E4_TLT

Tin Liu Tsuen

R

E4_TLT_R02

E4_TLT

Tin Liu Tsuen

R

E4_TLT_R12

Stage 2

E4_TTT

Tai Tao Tsuen

R

E4_TTT_R01

E4_LTT

Lung Tin Tsuen

R

E4_LTT_R01

E4_TLT

Tin Liu Tsuen

R

E4_TLT_R02

E4_TLT

Tin Liu Tsuen

R

E4_TLT_R12

E4_SHT

Shan Ha Tsuen

R

E4_SHT_R07

E4_PST

Pak Sha Tsuen

R

E4_PST_R01

E4_MKT

Muk Kiu Tau Tsuen

R

E4_MKT_R05

E4_WNT

Wong Nai Tun Tsuen

R

E4_WNT_R11

E4_HTS

Ha Tsuen Shi

R

E4_HTS_R01

E4_HTS

Ha Tsuen Shi

R

E4_HTS_R02

E4_HTS

Ha Tsuen Shi

R

E4_HTS_R03

E4_SPT

Shek Po Tsuen

R

E4_SPT_R01

E4_UT

Uptown

R

E4_UT_R01

E4_LA

Lutheran Academy

E

E4_LA_E01

E4_KMYLS

Kwong Ming Ying Loi School

E

E4_KMYLS_E03

Stage 3

E4_PST

Pak Sha Tsuen

R

E4_PST_R01

E4_WNT

Wong Nai Tun Tsuen

R

E4_WNT_R11

Stage 4

E4_TTT

Tai Tao Tsuen

R

E4_TTT_R01

E4_LA

Lutheran Academy

E

E4_LA_E01

Planned NSRs

Stage 1

P_R2.2

Public housing

R

P_R2.2_R01

P_R2.2

Public housing

R

P_R2.2_R10

P_R2.2

Public housing

R

P_R2.2_R17

P_VR1.1

Village rehousing

R

P_VR1.1_R01

P_VR2.1

Village rehousing

R

P_VR2.1_R01

Stage 2

P_VR3.1

Village rehousing

R

P_VR3.1_R02

P_E2.1

Planned primary school

E

P_E2.1_E01

P_R2.3

Public housing

R

P_R2.3_R08

P_R2.4

Public housing

R

P_R2.4_R06

[4]

P_HSK

Planned residential development in HSKND

R

P_HSK_R01

P_HSK

Planned residential development in HSK NDA

R

P_HSK_R02

P_HSK

Planned residential development in HSK NDA

R

P_HSK_R03

[5]

P_LBIH

Planned public housing development in Long Bin

R

P_LBIH_R02

Note:

[1] The assessment only includes NSRs which rely on opened windows for ventilation.

[2] The first layer of NSRs which are most affected by the project within 300m from the PDA boundary and the associated infrastructure works is included.

[3] R – Residential Premises, E – Educational Institutions. The land uses of the planned NSRs within the PDA are identified based on the RODP.

[4] Planned NSRs outside PDA.

[5] Planned NSRs outside PDA. Since the layout of Long Bin development is yet to be developed, the location of NAPs have been assumed at 10m from TYST Interchange and 10m from Long Tin Road.

5.4.3                  Road Traffic Noise

5.4.3.1                For operational road traffic noise assessment, the assessment area includes areas within 300m from the boundary of the planned road works and the committed and planned NSRs of the Project.  All levels of the first layer of existing and planned NSRs which are most affected by the project in the vicinity of project roads and committed and planned NSRs under the Project located in the vicinity of existing roads have been selected from Table 5.4.1. The locations of representative NSRs and NAPs for operational road traffic noise assessment are shown in Figure 5.4 and are summarised in Table 5.4.3.

Table 5.4.3 Representative NSRs and NAPs for road traffic noise assessment

NSR[1],[2]

NSR Description

Use[3]

NAP

Existing NSRs (Within PDA)

E1_CLMY

Chuk Lam Ming Yuen Monastery

W

E1_CLMY_T01

E1_ELD

Eldorado

R

E1_ELD_R01

E1_FLG

Fu Lai Garden

R

E1_FLG_R01

E1_GR

Greenville Residence

R

E1_GR_R01

E1_KLG

Kam Lai Garden

R

E1_KLG_R01

E1_KLK

Kam Lan Koon

W

E1_KLK_T01

E1_KV

Kisland Villa

R

E1_KV_R01 to E1_KV_R02

E1_LHT

Lam Hau Tsuen

R

E1_LHT_R01

E1_MG

Marbella Gardens

R

E1_MG_R01

E1_PH

The Parkhill

R

E1_PH_R01

E1_PV

Park Villa

R

E1_PV_R01 to E1_PV_R05

E1_RLS

Recours La Serre

R

E1_RLS_R01 to E1_RLS_R04

E1_SHT

Shan Ha Tsuen

R

E1_SHT_R01 to E1_SHT_R07

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R01 to E1_TYST_R14, E1_TYST_R20 to E1_TYST_R23, E1_TYST_R31 to E1_TYST_R38[5]

E1_WG

Winsor Garden

R

E1_WG_R01

E1_YHT

Yeung Hau Temple

W

E1_YHT_T01

E2_MKTT

Muk Kiu Tau Tsuen

R

E2_MKTT_R01

E2_TLT

Tin Lung Tsuen

R

E2_TLT_R01

E2_PST

Pak Sha Tsuen

R

E2_PST_R01

E2_TLY

Tin Lung Yuen

R

E2_TLY_R01 to E2_TLY_R02

Existing NSRs (Outside PDA)

E4_CFG

Chun Fai Garden

R

E4_CFG_R01 to E4_CFG_R02

E4_CPG

Chung Pak Garden

R

E4_CPG_R01

E4_FSW

Fui Sha Wai

R

E4_FSW_R01 to E4_FSW_R02

E4_FWM

Fu Wa Mansion

R

E4_FWM_R01

E4_GM

Garden Maple

R

E4_GM_R01

E4_HCG

Hang Cheong Garden

R

E4_HCG_R01 to E4_HCG_R02

E4_HG

Hoover Garden

R

E4_HG_R01

E4_HYTT

Ha Yau Tin Tsuen

R

E4_HYTT_R01

E4_JC

Jasper Court

R

E4_JC_R01

E4_KMYLS

Kwong Ming Ying Loi School

E

E4_KMYLS_E01

E4_KTST

Kong Tau San Tsuen

R

E4_KTST_R01 to E4_KTST_R02

E4_LA

Lutheran Academy

E

E4_LA_E01

E4_LFM

Lung Fai Mansion

R

E4_LFM_R01

E4_LG

La Grove

R

E4_LG_R01 to E4_LG_R02

E4_LHT

Lam Hau Tsuen

R

E4_LHT_R01 to E4_LHT_R05

E4_LHWT

Lam Hau Wai Tsuen

R

E4_LHWT_R01 to E4_LHWT_R04

E4_LTG

Lung Teng Garden

R

E4_LTG_R01

E4_LTT

Lung Tin Tsuen

R

E4_LTT_R01 to E4_LTT_R28

E4_MKT

Muk Kiu Tau Tsuen

R

E4_MKT_R01 to E4_MKT_R05

E4_OHP

One Hyde Park

R

E4_OHP_R01 to E4_OHP_R02

E4_PCG

Pui Chak Garden

R

E4_PCG_R01 to E4_PCG_R02

E4_PHY

Pitt Hwa Yuen

R

E4_PHY_R01 to E4_PHY_R02

E4_PS

Park Signature

R

E4_PS_R01 to E4_PS_R03

E4_PST

Pak Sha Tsuen

R

E4_PST_R01 to E4_PST_R20

E4_PSV

Parkside Villa

R

E4_PSV_R01 to E4_PSV_R02

E4_RP

Regent's Park

R

E4_RP_R01 to E4_RP_R02

E4_SCST

Sham Chung San Tsuen

R

E4_SCST_R01 to E4_SCST_R02

E4_SCT

Sham Chung Tsuen

R

E4_SCT_R01 to E4_SCT_R03

E4_SG

Scenic Gardens

R

E4_SG_R01 to E4_SG_R02

E4_SHT

Shan Ha Tsuen

R

E4_SHT_R01 to E4_SHT_R07

E4_SMG

Sun Mei Garden

R

E4_SMG_R01 to E4_SMG_R04

E4_STG

Sun Tong Garden

R

E4_STG_R01

E4_SV

Sereno Verde

R

E4_SV_R01

E4_SYTT

Sheung Yau Tin Tsuen

R

E4_SYTT_R01

E4_TKL

Tai Kei Leng

R

E4_TKL_R01

E4_TKLT

Tai Kei Leng Tsuen

R

E4_TKLT_R01 to E4_TKLT_R06

E4_TKT

Tan Kwai Tsuen

R

E4_TKT_R01 to E4_TKT_R03

E4_TLT

Tin Liu Tsuen

R

E4_TLT_R01 to E4_TLT_R18

E4_TR

The Reach

R

E4_TR_R01

E4_TTT

Tai Tao Tsuen

R

E4_TTT_R01 to E4_TTT_R03

E4_TYST

Tong Yan San Tsuen

R

E4_TYST_R01

E4_UT

Uptown

R

E4_UT_R01 to E4_UT_R06

E4_WNT

Wong Nai Tun Tsuen

R

E4_WNT_R01 to E4_WNT_R13

E4_WY

Wa Yuen

R

E4_WY_R01

E4_YH

Yoho Town

R

E4_YH_R01 to E4_YH_R02

E4_YHM

Yoho Midtown

R

E4_YHM_R01

Planned NSRs

P_E1.1

Planned primary school

E

P_E1.1_E01 to P_E1.1_E02

P_E2.1

Planned primary school

E

P_E2.1_E01 to P_E2.1_E04

P_E2.2

Planned primary school

E

P_E2.2_E01 to P_E2.2_E02

P_E2.3

Planned primary school

E

P_E2.3_E01 to P_E2.3_E03

P_E2.4

Planned primary school

E

P_E2.4_E01 to P_E2.4_E04

P_E3.1

Planned primary school

E

P_E3.1_E01 to P_E3.1_E03

P_E3.2

Planned primary school

E

P_E3.2_E01 to P_E3.2_E03

P_E3.3

Planned primary school

E

P_E3.3_E01 to P_E3.3_E03

P_G2.4

Married quarters

R

P_G2.4_R01

P_R1.1

Private housing

R

P_R1.1_R01 to P_R1.1_R04

P_R1.2

Private housing

R

P_R1.2_R01 to P_R1.2_R05

P_R1.3

Private housing

R

P_R1.3_R01 to P_R1.3_R09

P_R1.4

Private housing

R

P_R1.4_R01 to P_R1.4_R09

P_R1.5

Private housing

R

P_R1.5_R01 to P_R1.5_R03

P_R1.6

Private housing

R

P_R1.6_R01 to P_R1.6_R02

P_R1.7

Private housing

R

P_R1.7_R01 to P_R1.7_R08

P_R1.8

Private housing

R

P_R1.8_R01 to P_R1.8_R08

P_R1.9

Private housing

R

P_R1.9_R01 to P_R1.9_R03

P_R1.10

Private housing

R

P_R1.10_R01 to P_R1.10_R09

P_R1.11

Private housing

R

P_R1.11_R01 to P_R1.11_R03

P_R1.12

Private housing

R

P_R1.12_R01 to P_R1.12_R06

P_R1.13

Private housing

R

P_R1.13_R01 to P_R1.13_R04

P_R1.14

Private housing

R

P_R1.14_R01 to P_R1.14_R05

P_R1.15

Private housing

R

P_R1.15_R01 to P_R1.15_R02

P_R1.16

Private housing

R

P_R1.16_R01 to P_R1.16_R07

P_R2.1a

Private housing

R

P_R2.1a_R01 to P_R2.1a_R05

P_R2.1b

Public housing

R

P_R2.1b_R01 to P_R2.1b_R03

P_R2.2

Public housing

R

P_R2.2_R01 to P_R2.2_R20

P_R2.3

Public housing

R

P_R2.3_R01 to P_R2.3_R08

P_R2.4

Public housing

R

P_R2.4_R01 to P_R2.4_R14

P_R2.5

Public housing

R

P_R2.5_R01 to P_R2.5_R10

P_R2.6a

Private housing

R

P_R2.6a_R01 to P_R2.6a_R07

P_R2.6b

Private housing

R

P_R2.6b_R01 to P_R2.6b_R03

P_R2.6c

Private housing

R

P_R2.6c_R01 to P_R2.6c_R04

P_R2.6d

Private housing

R

P_R2.6d_R01 to P_R2.6d_R03

P_R2.7

Private housing

R

P_R2.7_R01 to P_R2.7_R04

P_R2.8

Public housing

R

P_R2.8_R01 to P_R2.8_R06

P_R3.1a

Private housing

R

P_R3.1a_R01 to P_R3.1a_R02

P_R3.1b

Private housing

R

P_R3.1b_R01 to P_R3.1b_R03

P_R3.1c

Private housing

R

P_R3.1c_R01 to P_R3.1c_R02

P_R3.1d

Private housing

R

P_R3.1d_R01

P_R3.1e

Private housing

R

P_R3.1e_R01 to P_R3.1e_R02

P_R3.2

Private housing

R

P_R3.2_R01 to P_R3.2_R04

P_R3.3

Private housing

R

P_R3.3_R01 to P_R3.3_R03

P_R3.4a

Private housing

R

P_R3.4a_R01 to P_R3.4a_R04

P_R3.4b

Private housing

R

P_R3.4b_R01 to P_R3.4b_R04

P_R3.5a

Private housing

R

P_R3.5a_R01 to P_R3.5a_R03

P_R3.5b

Private housing

R

P_R3.5b_R01 to P_R3.5b_R03

P_R3.6a

Private housing

R

P_R3.6a_R01 to P_R3.6a_R02

P_R3.6b

Private housing

R

P_R3.6b_R01 to P_R3.6b_R02

P_OU1.1

Private housing

R

P_OU1.1_R01 to P_OU1.1_R09

P_OU1.2a

Private housing

R

P_OU1.2a_R01 to P_OU1.2a_R10

P_OU1.3

Private housing

R

P_OU1.3_R01 to P_OU1.3_R05

P_OU2.3

Private housing

R

P_OU2.3_R01 to P_OU2.3_R04

P_OU3.2a

Private housing

R

P_OU3.2a_R01 to P_OU3.2a_R04

P_OU3.2b

Private housing

R

P_OU3.2b_R01 to P_OU3.2b_R02

P_VR1.1

Village rehousing

R

P_VR1.1_R01 to P_VR1.1_R02

P_VR2.1

Village rehousing

R

P_VR2.1_R01 to P_VR2.1_R02

P_VR3.1

Village rehousing

R

P_VR3.1_R01

P_LBIH[4]

Planned Public Housing Development in Long Bin

R

P_LBIH_R01 to P_LBIH_R02

Note:

[1] The assessment only includes NSRs which rely on opened windows for ventilation.

[2] The first layer of NSRs which are most affected by the project within 300m from the boundary of the planned road works and the committed and planned NSRs of the Project is included.

[3] R – Residential Premises, E – Educational Institutions; W – Places of Public Worship; C – Clinics, Residential Care Home for the Elderly (RCHE). The land uses of the planned NSRs within the PDA are identified based on the RODP.

[4] Planned NSRs outside PDA.  Since the layout of Long Bin development is yet to be developed, the location of NAPs have been assumed at 10m from TYST Interchange and 10m from Long Tin Road.

[5] E1_TYST_R31 to E1_TYST_R38 would be demolished before commencement of construction works of Stage 3.

5.4.4                  Fixed Noise Sources

5.4.4.1                For operational fixed noise sources impact assessment, the assessment area should be: i) 300m assessment area for committed and planned NSRs affected by planned and existing fixed noise sources; ii) 300m assessment area for planned fixed noise sources.  The existing and planned NSRs affected by existing and planned fixed noise sources in the vicinity of project have been selected from Table 5.4.1. The representative NSRs and NAPs at various representative floor levels for operational fixed noise sources impact assessment are shown in Figure 5.5 and are summarised in Table 5.4.4. Detailed information about the determination of their fixed noise criteria are provided in Appendix 5.7.

Table 5.4.4 Representative NSRs and NAPs for fixed noise sources impact assessment

Stage

NSR[1]

NSR Description[2]

Use[3]

NAP

ASR

Existing NSRs (Within PDA)

Stage 2

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R01

B

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R07

B

E2_MKTT

Muk Kiu Tau Tsuen

R

E2_MKTT_R01

A

E2_TLY

Tin Lung Yuen

R

E2_TLY_R02

B

Stage 3

E1_ELD

Eldorado

R

E1_ELD_R02

A

E1_ELD

Eldorado

R

E1_ELD_R03

A

E2_MKTT

Muk Kiu Tau Tsuen

R

E2_MKTT_R01

A

Existing NSRs (Outside PDA)

Stage 2

E4_TLT

Tin Liu Tsuen

R

E4_TLT_R01

B

E4_TLT

Tin Liu Tsuen

R

E4_TLT_R17

A

E4_WNT

Wong Nai Tun Tsuen

R

E4_WNT_R11

A

E4_WNT

Wong Nai Tun Tsuen

R

E4_WNT_R12

A

E4_KMYLS

Kwong Ming Ying Loi School

E

E4_KMYLS_E02

C

E4_TTT

Tai Tao Tsuen

R

E4_TTT_R01

B

E4_FSW

Fui Sha Wai

R

E4_FSW_R02

B

Stage 3

E4_WNT

Wong Nai Tun Tsuen

R

E4_WNT_R11

A

E4_WNT

Wong Nai Tun Tsuen

R

E4_WNT_R12

A

E4_SHT

Shan Ha Tsuen

R

E4_SHT_R04

A

E4_CPG

Chung Pak Garden

R

E4_CPG_R01

A

E4_PST

Pak Sha Tsuen

R

E4_PST_R18

A

E4_LHWT

Lam Hau Wai Tsuen

R

E4_LHWT_R01

B

Planned NSRs

Stage 1

P_R2.2

Public housing

R

P_R2.2_R02

C

P_R2.2

Public housing

R

P_R2.2_R19

B

Stage 2

P_R2.4

Public housing

R

P_R2.4_R04

B

P_R2.5

Public housing

R

P_R2.5_R07

B

R_VR3.1

Village rehousing

R

P_VR3.1_R03

B

Stage 3

 

P_R2.6a

Private housing

R

P_R2.6a_R03

B

P_R2.6d

Private housing

R

P_R2.6d_R02

B

P_R3.5b

Private housing

R

P_R3.5b_R02

B

P_E3.1

Planned primary school

E

P_E3.1_E01

B

P_OU2.3

Private housing

R

P_OU2.3_R02

B

P_OU3.2a

Private housing

R

P_OU3.2a_R01

B

P_OU3.2b

Private housing

R

P_OU3.2b_R03

B

Stage 4

P_OU1.1

Private housing

R

P_OU1.1_R02

B

P_OU1.1

Private housing

R

P_OU1.1_R10

B

P_OU1.3

Private housing

R

P_OU1.3_R01

B

P_R1.2

Private housing

R

P_R1.2_R05

B

Note:

[1] The assessment only includes NSRs which rely on opened windows for ventilation.

[2] The first layer of NSRs which are most affected by the project within i) 300m assessment area for committed and planned NSRs affected by planned and existing fixed noise sources; ii) 300m assessment area for planned fixed noise sources is included.

[3] R – Residential Premises, E – Educational Institutions. The land uses of the planned NSRs within the PDA are identified based on the RODP.

5.4.5                  Rail Noise

5.4.5.1                For operational rail noise assessment, the assessment area includes those within 300m from the PDA boundary and EFTS alignment.  Representative NSRs have been selected from Table 5.4.1. The locations of representative NSRs and NAPs for operational rail noise assessment are shown in Figure 5.6 and are summarised in Table 5.4.5.

Table 5.4.5 Representative NSRs and NAPs for rail noise assessment

Stage

NSR[1]

NSR Description[2]

Use[3]

NAP

Existing NSRs (Within PDA)

N/A

E1_PV

Park Villa

R

E1_PV_R02

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R07

Existing NSRs (Outside PDA)

N/A

E4_LHT

Lam Hau Tsuen

R

E4_LHT_R06

Planned NSRs

Stage 1

P_R2.2

Public Housing

R

P_R2.2_R10

Stage 2

P_R2.1b

Private Housing

R

P_R2.1b_R02

P_R2.4

Public Housing

R

P_R2.4_R12

Stage 3

P_R2.6d

Private Housing

R

P_R2.6d_R02

Stage 4

P_OU1.2a

Private Housing

R

P_OU1.2a_R10

Note:

[1] The assessment only includes NSRs which rely on opened windows for ventilation.

[2] The first layer of NSRs which are most affected by the project within 300m from the PDA boundary is included.

[3] R – Residential Premises. The land uses of the planned NSRs within the PDA are identified based on the RODP.

5.5                         Construction Noise Impact Assessment

5.5.1                  Construction Noise Impact Assessment Methodology

5.5.1.1                Construction noise assessment has been conducted based on the following procedures:

·         Determine 300m from the PDA boundary and the associated infrastructure works;

·         Identify and locate representative NSRs in each stage that may be affected by the works;

·         Obtain the construction method and work sequence for the construction period;

·         Obtain the construction plant inventory for each corresponding construction work sequence;

·         Determine the sound power levels (SWLs) of the plant items according to the information stated in the TM-GW or other recognised sources of reference, where appropriate;

·         Calculate the correction factors based on the distance between the NSRs and the notional noise source positions of the work sites;

·         Apply corrections for façade, distance, barrier attenuation, acoustic reflection where applicable;

·         Predict construction noise levels at the NSRs;

·         Quantify the level of impact at the NSRs, in accordance with TM-GW;

·         Predict the cumulative noise impacts for any concurrent construction works in the vicinity of the proposed work;

·         For any exceedance of noise criteria, all practical mitigation measures such as alternative construction methodology, quiet plant, silencer, enclosure, etc, shall be examined to alleviate the predicted noise impacts as much as practicable; and

·         Consideration of noise mitigation measures will follow Annex 13 of EIAO-TM and EIA Ordinance Guidance Note “Preparation of Construction Noise Impact Assessment under the Environmental Impact Assessment Ordinance” [GN 9/2010].

Construction Noise Assessment Tool

5.5.1.2                An in-house program has been used for construction noise calculations. Initially, program runs were conducted without any mitigation measures (i.e. the “Unmitigated Scenario”). Where noise level exceedance was identified, further runs would be made assuming different combinations of mitigation measures to be incorporated (i.e. the “Mitigated Scenario”).

Utilisation Rates and SWLs of Powered Mechanical Equipment

5.5.1.3                Practically, the PMEs will not be operating for all times within a work site. The utilisation rates would depend on the construction sequences, work fronts scale and construction nature. In this assessment, the utilisation rates have been reviewed by engineer and have been concluded to be practical for the purpose of this EIA. Appendix 5.3 tabulates the adopted utilisation rates.  The construction plant inventory has been developed together with the construction programme to achieve the completion dates as given in Appendix 5.4 of the EIA Report.  For typical construction activities, it is realistic that there are always some idling time for various construction equipment.  Take dump truck as an example, it is part of the normal logistics that they would need to await for other construction activities before loading and unloading.   Hence, it is reasonable to assume a 70% on-time for dump trucks. Similar principle applies for other construction equipment.

5.5.2                  Prediction and Evaluation of Construction Noise Impacts

5.5.2.1                According to the latest engineering design, construction would mainly comprise activities including site formation and road works as described in Section 5.3.1. The corresponding SWLs of these activities have been estimated according to the PME’s SWLs and the assessment methodology in the TM-GW. Appendix 5.2 presents the SWLs for each PME. Appendix 5.3 gives the plant inventory adopted for each workfront and Appendix 5.5 shows the locations of workfronts adopted for this construction noise assessment.

5.5.2.2                Appendix 5.9 presents the calculated construction noise impacts at selected representative NSRs under unmitigated scenario with consideration of cumulative impacts from concurrent projects. The predicted construction noise impacts at the NSRs under unmitigated scenario are summarised in Table 5.5.1.

Table 5.5.1 Predicted construction noise impact at NSRs under unmitigated scenario

Stage

NSR[1]

NAP[2][3]

Uses[4]

Leq (30mins), dB(A)

Criterion[5]

Unmitigated Noise Level[6]

Exceedance

Existing NSRs (Within PDA)

Stage 1

E1_SHT

E1_SHT_R01

R

75

75

-

E1_SHT

E1_SHT_R04

R

75

89

14

E2_TLY

E2_TLY_R01

R

75

89

14

Stage 2

E1_RLS

E1_RLS_R02

R

75

66

-

E1_ELD

E1_ELD_R02

R

75

71

-

E1_PV

E1_PV_R02

R

75

76

1

E1_TYST

E1_TYST_R07

R

75

77

2

E1_TYST

E1_TYST_R13

R

75

70

-

E1_TYST

E1_TYST_R32

R

75

80

5

E1_TYST

E1_TYST_R36

R

75

68

-

E1_MG

E1_MG_R02

R

75

64

-

E1_TYST

E1_TYST_R05

R

75

69

-

E1_SHT

E1_SHT_R01

R

75

75

-

E1_SHT

E1_SHT_R04

R

75

89

14

E2_TLY

E2_TLY_R01

R

75

89

14

E2_MKTT

E2_MKTT_R01

R

75

81

6

Stage 3

E2_MKTT

E2_MKTT_R01

R

75

76

1

Stage 4

E1_RLS

E1_RLS_R02

R

75

86

11

E1_ELD

E1_ELD_R02

R

75

85

10

E1_PV

E1_PV_R02

R

75

88

13

E1_TYST

E1_TYST_R07

R

75

84

9

E1_TYST

E1_TYST_R13

R

75

76

1

E1_TYST

E1_TYST_R36

R

75

68

-

E1_MG

E1_MG_R02

R

75

86

11

E1_PH

E1_PH_R01

R

75

80

5

E1_TYST

E1_TYST_R05

R

75

80

5

E1_SHT

E1_SHT_R01

R

75

80

5

E1_SHT

E1_SHT_R04

R

75

73

-

E2_TLY

E2_TLY_R01

R

75

70

-

Existing NSRs (Outside PDA)

Stage 1

E4_SHT

E4_SHT_R07

R

75

85

10

E4_LTT

E4_LTT_R01

R

75

90

15

E4_TLT

E4_TLT_R02

R

75

91

16

E4_TLT

E4_TLT_R12

R

75

89

14

Stage 2

E4_TTT

E4_TTT_R01[8]

R

75

73

-

E4_LTT

E4_LTT_R01

R

75

90

15

E4_TLT

E4_TLT_R02

R

75

91

16

E4_TLT

E4_TLT_R12

R

75

89

14

E4_SHT

E4_SHT_R07

R

75

85

10

E4_PST

E4_PST_R01

R

75

79

4

E4_MKT

E4_MKT_R05

R

75

81

6

E4_WNT

E4_WNT_R11

R

75

75

-

E4_HTS

E4_HTS_R01[8]

R

75

93

18

E4_HTS

E4_HTS_R02[8]

R

75

77

2

E4_HTS

E4_HTS_R03[8]

R

75

89

14

E4_SPT

E4_SPT_R01[8]

R

75

77

2

E4_UT

E4_UT_R01[8]

R

75

78

3

E4_LA

E4_LA_E01

E

70 (65)

70

- (5)

E4_KMYLS

E4_KMYLS_E03

E

70 (65)

78

8 (13)

Stage 3

E4_PST

E4_PST_R01

R

75

79

4

E4_WNT

E4_WNT_R11

R

75

75

-

Stage 4

E4_TTT

E4_TTT_R01

R

75

71

-

E4_LA

E4_LA_E01

E

70 (65)

74

4 (9)

Planned NSRs

Stage 1

P_R2.2

P_R2.2_R01

R

75

77

2

P_R2.2

P_R2.2_R10

R

75

76

1

P_R2.2

P_R2.2_R17

R

75

76

1

P_VR1.1

P_VR1.1_R01

R

75

80

5

P_VR2.1

P_VR2.1_R01

R

75

78

3

Stage 2

P_VR3.1

P_VR3.1_R02

R

75

81

6

P_E2.1

P_E2.1_E01

E

70 (65)

70

- (5)

P_R2.3

P_R2.3_R08

R

75

74

-

P_R2.4

P_R2.4_R06

R

75

74

-

[7]

P_HSK

P_HSK_R01[8]

R

75

89

14

P_HSK

P_HSK_R02[8]

R

75

77

2

P_HSK

P_HSK_R03[8]

R

75

77

2

P_LBIH

P_LBIH_R02

R

75

80

5

Note:

[1] The assessment only includes NSRs which rely on opened windows for ventilation.

[2] NAP – Noise Assessment Point.

[3] Representative NSRs within 300m from the PDA boundary and the associated infrastructure works is included.

[4] R – Residential Premises; E – Educational Institutions. The land uses of the planned NSRs within the PDA are identified based on the RODP.

[5] Values in parentheses indicate the noise criterion during examination period (Jan, Feb, May and June) of education institution.

[6] Noise levels presented are rounded to the nearest dB(A).

[7] Planned NSRs outside PDA.

[8] Cumulative construction noise impacts from the concurrent project (i.e. HSK NDA) are considered for E4_TTT_R01, E4_HTS_R01, E4_HTS_R02, E4_HTS_R03, E4_SPT_R01, E4_UT_R01, P_HSK_R01, P_HSK_R02 and P_HSK_R03 in the assessment. For other NSRs located outside 300m from HSK NDA, cumulative construction noise impacts are not anticipated.

5.5.2.3                It can be seen from the above Table 5.5.1 that without any mitigation measures, exceedances of noise criteria range from 1 to 18 dB(A) for existing residential premises and from 4 to 13 dB(A) for existing educational institutions, while the exceedances of noise criteria range from 2 to 14 dB(A) for planned residential premises and 5 dB(A) for planned educational institutions.  Mitigation measures are therefore required.

5.5.2.4                The existing NSRs at Ha Tsuen Shi along Tin Ha Road, which include E4_HTS (i.e. E4_HTS_R01), are anticipated to be the worst affected existing NSRs by the construction works mainly due to short buffer distance between the NSR and utility works on Tin Ha Road (i.e works area P2u).

5.5.2.5                The existing NSRs along Kung Um Road and Kiu Hing Road, which include E4_TLT (i.e. E4_TLT_R02) and E4_LTT (i.e. E4_LTT_R01), are also anticipated to be the worst affected existing NSRs by the construction works mainly due to short buffer distance between the NSR and road works on Kung Um Road and Kiu Hing Road (i.e. works area P1b and P2f).

5.5.2.6                The NSR P_VR_1.1 (i.e. P_VR1.1_R01) is anticipated to be the worst affected planned NSR in Stage 1 mainly due to short buffer distance between the NSR and road works on works area P2d in Stage 2.

5.5.2.7                The NSR P_VR3.1 (i.e. P_VR3.1_R02) is anticipated to be the worst affected planned NSR in Stage 2 mainly due to short buffer distance between the NSR and site formation and slope works on works area P3d in Stage 3.

5.5.2.8                The NSR P_HSK (i.e. P_HSK_R01) is anticipated to be the worst affected planned NSR mainly due to short buffer distance between the NSR and utility works on works area P2u in Stage 2.  Please note that the planned NSR P_HSK belongs to the HSK NDA project.  Details about the NSR should refer to the approved EIA report for HSK NDA (AEIAR-203/2016).

5.5.3                  Mitigation Measures

5.5.3.1                The predicted noise levels show that the unmitigated construction noise impacts would exceed the daytime noise criteria. Mitigation measures are therefore required. The following mitigation measures have been considered:

·         Good site practices to limit noise emissions at the source;

·         Use of quality powered mechanical equipment (QPME);

·         Use of temporary noise barriers and noise enclosure to screen noise from relatively static PMEs; and

·         Alternative use of plant items within one worksite, wherever practicable.

5.5.3.2                The above mitigation measures would need to be implemented in work sites as good practices where appropriate. Detailed descriptions of these mitigation measures are given in the following sections.

Good Site Management Practices

5.5.3.3                Good site practice and noise management techniques could considerably reduce the noise impact from construction site activities on nearby NSRs. The following measures should be practised during each phase of construction:

·         only well-maintained plant should be operated on-site and plant should be serviced regularly during the construction programme;

·         machines and plant (such as trucks, cranes) that may be in intermittent use should be shut down between work periods or should be throttled down to a minimum;

·         plant known to emit noise strongly in one direction, where possible, be orientated so that the noise is directed away from nearby NSRs;

·         silencers or mufflers on construction equipment should be properly fitted and maintained during the construction works;

·         mobile plant should be sited as far away from NSRs as possible and practicable; and

·         material stockpiles, site office and other structures should be effectively utilised, where practicable, to screen noise from on-site construction activities.

5.5.3.4                The benefits of these techniques can vary according to specific site conditions and operations. The environmental noise climate would certainly be improved with these control practices, although the improvement can only be quantified during implementation when specific site parameters are known.

Use of Quality Powered Mechanical Equipment

5.5.3.5                The use of quiet plant associated with the construction works is made reference to the PME listed in the QPME and other commonly used PME listed in EPD web pages as far as possible.  It is generally known (supported by field measurement) that particular models of construction equipment are quieter than standard types given in the TM-GW. Whilst it is generally considered too restrictive to specify that the Contractor has to use specific models or items of plant, it is reasonable and practicable to set plant noise performance specifications for specific PME so that some flexibility in selection of plant is allowed. A pragmatic approach would be to request that the Contractor independently verifies the noise level of the plant proposed to be used and demonstrates through furnishing of these results, that the plant proposed to be used on the site meets the requirements. 

Use of Movable Noise Barrier and Full Enclosure for Relatively Fixed Plant Source

5.5.3.6                Movable temporary noise barriers that can be located close to noisy plant and be moved concurrently with the plant along a worksite can be very effective for screening noise from NSRs. A typical design which has been used locally is a wooden framed barrier with a small-cantilevered upper portion of superficial density no less than 7kg/m2 on a skid footing with 25mm thick internal sound absorptive lining. This measure is particularly effective for low level zone of NSRs. A cantilevered top cover would be required to achieve screening benefits at upper floors of NSRs.

5.5.3.7                Movable temporary noise barriers will be used for some PME (e.g. excavator). It is anticipated that suitably designed barriers could achieve at least 5dB(A) reduction for movable plant and 10dB(A) for stationary plant.

5.5.3.8                The use of standard enclosure has been considered in this assessment to shelter relatively fixed plant including air compressor, generator. These standard enclosures can provide at least 15dB(A) noise reduction. 

5.5.3.9                A summary of the movable temporary noise barrier and standard enclosure adopted for various PMEs is given in Appendix 5.2 and indicative drawing for barrier and standard enclosure is shown in Appendix 5.10, and the associated noise reduction is summarised in Table 5.5.2.

Table 5.5.2 Summary of barrier and standard enclosure adopted for PMEs

PME

Enclosure / Barrier

Attenuation, dB(A)

Asphalt Paver

Barrier

-5

Bar Bender and Cutter (Electric)

Barrier

-10

Hand Held Breaker

Barrier

-10

Bulldozer

Barrier

-5

Concrete Lorry Mixer

Barrier

-5

Concrete pump

Enclosure

-15

Mobile Crane

Barrier

-5

Compactor, vibratory

Barrier

-5

Dump Truck

Barrier

-5

Drill Rig, rotary type (Diesel)

Barrier

-10

Excavator

Barrier

-5

Backhoe

Barrier

-5

Generator

Enclosure

-15

Grout Mixer

Enclosure

-15

Grout Pump

Enclosure

-15

Hoist, passenger/ material (Petrol)

Barrier

-5

Lorry

Barrier

-5

Piling, large dia bored, reverse circulation drill

Barrier

-5

Vibratory Poker

Barrier

-10

Road Roller

Barrier

-5

Saw, Circular Wood

Barrier

-10

Water Pump (Electric)

Barrier

-10

5.5.3.10            In addition to the above-listed movable temporary noise barrier and standard enclosure, retractable noise barrier will be erected along the worksites at Kung Um Road, Kiu Hing Road and Tin Ha Road in front of the NSRs to further mitigate the construction noise.  It is anticipated that these retractable noise barriers can provide about 10dB(A) noise reduction for the PME used at the worksites.  Detail information about these PME are shown in Appendix 5.2.

Alternative Use of Plant Items within One Worksite

5.5.3.11            In practice, some plant items will operate sequentially within the same work site, and certain reduction of the predicted noise impacts could be achieved. However, any additional control on the sequencing of plant will impose a restrictive constraint to the Contractor on the operation and planning of plant items, and the implementation of the requirement would be difficult to be monitored. Hence, sequencing operation of PME has not been taken into consideration.

Assessment Results of Construction Noise Under Mitigated Scenario

5.5.3.12            Appendix 5.12 presents the calculated construction noise impacts at selected representative NSRs with the adoption of the above mitigation measures.  The predicted construction noise impacts at the NSRs under mitigated scenario are summarised in Table 5.5.3.

Table 5.5.3 Predicted construction noise impact at NSRs under mitigated scenario

Stage

NSR[1]

NAP[2][3]

Uses[4]

Leq (30mins), dB(A)

Criterion[5]

Mitigated Noise Level[6]

Exceedance

Existing NSRs (Within PDA)

Stage 1

E1_SHT

E1_SHT_R01

R

75

61

-

E1_SHT

E1_SHT_R04

R

75

75

-

E2_TLY

E2_TLY_R01

R

75

75

-

Stage 2

E1_RLS

E1_RLS_R02

R

75

52

-

E1_ELD

E1_ELD_R02

R

75

58

-

E1_PV

E1_PV_R02

R

75

63

-

E1_TYST

E1_TYST_R07

R

75

63

-

E1_TYST

E1_TYST_R13

R

75

57

-

E1_TYST

E1_TYST_R32

R

75

67

-

E1_TYST

E1_TYST_R36

R

75

55

-

E1_MG

E1_MG_R02

R

75

49

-

E1_TYST

E1_TYST_R05

R

75

56

-

E1_SHT

E1_SHT_R01

R

75

61

-

E1_SHT

E1_SHT_R04

R

75

75

-

E2_TLY

E2_TLY_R01

R

75

75

-

E2_MKTT

E2_MKTT_R01

R

75

67

-

Stage 3

E2_MKTT

E2_MKTT_R01

R

75

63

-

Stage 4

E1_RLS

E1_RLS_R02

R

75

73

-

E1_ELD

E1_ELD_R02

R

75

71

-

E1_PV

E1_PV_R02

R

75

75

-

E1_TYST

E1_TYST_R07

R

75

71

-

E1_TYST

E1_TYST_R13

R

75

63

-

E1_TYST

E1_TYST_R36

R

75

55

-

E1_MG

E1_MG_R02

R

75

73

-

E1_PH

E1_PH_R01

R

75

67

-

E1_TYST

E1_TYST_R05

R

75

67

-

E1_SHT

E1_SHT_R01

R

75

67

-

E1_SHT

E1_SHT_R04

R

75

60

-

E2_TLY

E2_TLY_R01

R

75

57

-

Existing NSRs (Outside PDA)

Stage 1

E4_SHT

E4_SHT_R07

R

75

72

-

E4_LTT

E4_LTT_R01

R

75

75

-

E4_TLT

E4_TLT_R02

R

75

72

-

E4_TLT

E4_TLT_R12

R

75

70

-

Stage 2

E4_TTT

E4_TTT_R01[8]

R

75

60

-

E4_LTT

E4_LTT_R01

R

75

75

-

E4_TLT

E4_TLT_R02

R

75

72

-

E4_TLT

E4_TLT_R12

R

75

70

-

E4_SHT

E4_SHT_R07

R

75

72

-

E4_PST

E4_PST_R01

R

75

66

-

E4_MKT

E4_MKT_R05

R

75

68

-

E4_WNT

E4_WNT_R11

R

75

62

-

E4_HTS

E4_HTS_R01[8]

R

75

74

-

E4_HTS

E4_HTS_R02[8]

R

75

71

-

E4_HTS

E4_HTS_R03[8]

R

75

76

1

E4_SPT

E4_SPT_R01[8]

R

75

71

-

E4_UT

E4_UT_R01[8]

R

75

61

-

E4_LA

E4_LA_E01

E

70 (65)

57

-

E4_KMYLS

E4_KMYLS_E03

E

70 (65)

63

-

Stage 3

E4_PST

E4_PST_R01

R

75

66

-

E4_WNT

E4_WNT_R11

R

75

62

-

Stage 4

E4_TTT

E4_TTT_R01

R

75

58

-

E4_LA

E4_LA_E01

E

70 (65)

60

-

Planned NSRs

Stage 1

P_R2.2

P_R2.2_R01

R

75

64

-

P_R2.2

P_R2.2_R10

R

75

63

-

P_R2.2

P_R2.2_R17

R

75

63

-

P_VR1.1

P_VR1.1_R01

R

75

66

-

P_VR2.1

P_VR2.1_R01

R

75

65

-

Stage 2

P_VR3.1

P_VR3.1_R02

R

75

68

-

P_E2.1

P_E2.1_E01

E

70 (65)

57

-

P_R2.3

P_R2.3_R08

R

75

60

-

P_R2.4

P_R2.4_R06

R

75

61

-

[7]

P_HSK

P_HSK_R01[8]

R

75

75

-

P_HSK

P_HSK_R02[8]

R

75

74

-

P_HSK

P_HSK_R03[8]

R

75

67

-

P_LBIH

P_LBIH_R02

R

75

67

-

Note:

[1] The assessment will only include NSRs which rely on opened windows for ventilation.

[2] NAP – Noise Assessment Point.

[3] Representative NSRs within 300m from the PDA boundary and the associated infrastructure works is included.

[4] R – Residential Premises; E – Educational Institutions. The land uses of the planned NSRs within the PDA are identified based on the RODP.

[5] Values in parentheses indicate the noise criterion during examination period (Jan, Feb, May and June) of education institution.

[6] Noise levels presented are rounded to the nearest dB(A).

[7] Planned NSRs outside PDA.

[8] Cumulative construction noise impacts from the concurrent project (i.e. HSK NDA) are considered for E4_TTT_R01, E4_HTS_R01, E4_HTS_R02, E4_HTS_R03, E4_SPT_R01, E4_UT_R01, P_HSK_R01, P_HSK_R02 and P_HSK_R03 in the assessment. For other NSRs located outside 300m from HSK NDA, cumulative construction noise impacts are not anticipated.

 

5.5.3.13            It can be seen from the above Table 5.5.3 that construction noise impact arising from the project at all existing and planned NSRs, except for E4_HTS_R03 (Ha Tsuen Shi), will be mitigated after implementation of the recommended noise mitigation measures.  It is anticipated that the noise level at this NSR at Ha Tsuen Shi will exceed the criterion by 1dB(A) for 10 months from August 2032 to May 2033 due to works of the HSK NDA development.  According to the approved EIA report for HSK NDA (AEIAR-203/2016), mitigation measures such as use of quiet plant, temporary noise barrier, etc. are recommended to reduce the construction noise impacts.

5.5.4                  Assessment of Side Effects and Constraints

5.5.4.1                As discussed in Section 10.12, measures such as provision of temporary landscape and screen hoarding at construction sites as well as controlling construction light are proposed to alleviate the induced impacts from the recommended construction noise mitigation measures.

5.5.4.2                As the construction of the Project may involve different parties, it is proposed to set up a liaison group among relevant government departments, contractors of the Works contracts, etc. during construction phase of the Project so as to ensure the proper implementation of the proposed noise mitigation measures.

5.5.5                  Evaluation of Constraints on Planned Noise Sensitive Developments / Land Uses

5.5.5.1                With all practicable direct technical remedies in place, no additional measures within the planned noise sensitive uses would be required.

5.5.6                  Evaluation of Residual of Construction Noise Impacts

5.5.6.1                Construction noise impact arising from the Project can be properly mitigated by implementing the proposed noise mitigation measures. Adverse residual noise impacts are thus not anticipated. 

5.6                         Road Traffic Noise Impact Assessment

5.6.1                  Road Traffic Noise Impact Assessment Methodology

5.6.1.1                Road traffic noise calculation is based on the methods described in the U.K. Department of Transport’s “Calculation of Road Traffic Noise (CRTN)”. The predicted noise levels at the NSRs include a 2.5dB(A) façade reflection and correction factors of effects due to gradient, distance, view angle, road surface and barriers.

5.6.1.2                In preparation for noise prediction, the project roads and existing roads within the assessment area have been included in the model with parameters of road width and surface type. Computer-plots of the road traffic noise model with the extent of Project roads are shown in Appendix 5.13.

5.6.1.3                The computer programme, RoadNoise 2000, has been used to model road traffic noise from road networks. It complies with the Calculation of Road Traffic Noise (CRTN) developed by the UK Department of Transport. The road traffic noise will be presented in terms of noise levels exceeded for 10% of the one-hour period during peak traffic flow [i.e. L10 (1hr) dB(A)].

5.6.1.4                According to the Revised Technical Feasibility Study (TFS) for Retrofitting of Noise Barriers on Long Tin Road, the tentative construction commencement and project completion dates for the retrofitting project are September 2019 and December 2022 respectively. As such, the retrofitting noise barriers at Long Tin Road has been included in the road traffic noise model.

5.6.1.5                As discussed in Section 2.5, based on the current tentative implementation programme, the proposed Project would be implemented in four stages and the expected operation years would be in Years 2027, Year 2033 and Year 2038. Thus the assessment years for road traffic noise are taken as Year 2027, Year 2033 and Year 2053 (which is maximum traffic projection within 15 years upon operation of road networks or full occupation of planned NSRs).  The traffic projection will take into account the induced traffic due to the operation of other planned projects including:

·         HSK NDA Planning and Engineering Study;

·         Engineering Works at Lin Cheung Road Site, Sham Shui Po and  Wang Chau, Yuen Long;

·         Site Formation and Infrastructural Works for the Development at Long Bin, Yuen Long, Feasibility Study;

·         Site Formation and Infrastructural Works for the Development near Tan Kwai Tsuen, Yuen Long – Feasibility Study; 

·         Improvement to Pok Oi Interchange; and

·         Property Development of Kam Sheung Road Station and its Adjoining Areas.

5.6.1.6                Hence, the following stages have been conducted:

·           Stage 1 – Expected operation year of the proposed Project at Year 2027;

·           Stage 2 – Expected operation year of the proposed Project at Year 2033; and

·           Stage 3 and 4 - Expected operation year of the proposed Project at Year 2038 (Year 2053 for the maximum traffic projection within 15 year is choosen for road traffic noise assessment).

5.6.1.7                Figure 5.2 shows the 300m from the boundary of the planned road works and the committed and planned NSRs of the Project for noise assessment.

5.6.1.8                Where the predicted noise impacts exceed the noise criteria, direct mitigation measures shall be considered to reduce the noise from the project road to a level that it (According to EIA Ordinance Guidance Note No. 12/2010):

·           Is not higher than the standard; and

·           Has no significant contribution to the overall noise from other existing roads, if the cumulative noise level, i.e. noise from the project road together with other existing roads exceeds the standard (i.e. less than 1.0 dB(A)).

5.6.1.9                In addition, a review for NSRs along existing roads will be conducted to assess whether the traffic noise impact due to Project is significant.  Implementation of mitigation measures will be considered if necessary on those existing roads under this Project to alleviate the road traffic noise impact.

5.6.1.10            Details of traffic forecast for “With Project” and prevailing scenarios are given in Appendix 5.14. Transport Department (TD) has endorsed the traffic forecast as shown in Appendix 5.14a.

5.6.2                  Prediction and Evaluation of Road Traffic Noise Impact

Scenarios

5.6.2.1                The road traffic noise assessment includes following scenarios:

·                  Prevailing scenario at assessment year 2019 (Appendix 5.15);

·                  Unmitigated scenario at assessment year 2027 for Stage 1 of the proposed Project (Appendix 5.15a);

·                  Mitigated scenario at assessment year 2027 for Stage 1 of the proposed Project (Appendix 5.16a);

·                  Unmitigated scenario at assessment year 2033 for Stage 2 of the proposed Project (Appendix 5.15b);

·                  Mitigated scenario at assessment year 2033 for Stage 2 of the proposed Project (Appendix 5.16b);

·                  Unmitigated scenario at assessment year 2053 for Stages 3 and 4 of the proposed Project (Maximum traffic project within 15 year after the full operation of the proposed Project at year 2038) (Appendix 5.15c); and

·                  Mitigated scenario at assessment year 2053 for Stages 3 and 4 of the proposed Project (Maximum traffic project within 15 year after the full operation of the proposed Project at year 2038) (Appendix 5.16c).

Prediction of Noise Impact

5.6.2.2                The predicted road traffic noise levels at each representative NSR and NAP under unmitigated scenario are presented in Table 5.6.1. Appendix 5.15 shows the details of the noise impacts of the NSRs and NAPs at various floor levels in different stages.


Table 5.6.1a   Summary of the predicted road traffic noise impact at existing and planned NSRs under unmitigated scenario (Year 2027)

NSR

NAP ID[1,2]

Description

Uses[3]

Noise Criterion,

L10 (1 hr), dB(A)

Predicted Unmitigated Overall Noise Level,

(L10 (1 hr), dB(A))[4]

Compliance of Noise Criteria (Y/N)

Existing NSR (within PDA)

E1_CLMY

E1_CLMY_T01

Chuk Lam Ming Yuen Monastery

W

65

55 - 57

Y

E1_ELD

E1_ELD_R01

Eldorado

R

70

65

Y

E1_FLG

E1_FLG_R01

Fu Lai Garden

R

70

61 - 67

Y

E1_GR

E1_GR_R01

Greenville Residence

R

70

64 - 65

Y

E1_KLG

E1_KLG_R01

Kam Lai Garden

R

70

62 - 67

Y

E1_KLK

E1_KLK_T01

Kam Lan Koon

W

65

49

Y

E1_KV

E1_KV_R01 to E1_KV_R02

Kisland Villa

R

70

63 - 65

Y

E1_LHT

E1_LHT_R01

Lam Hau Tsuen

R

70

68 - 69

Y

E1_MG

E1_MG_R01

Marbella Gardens

R

70

63 - 64

Y

E1_PH

E1_PH_R01

The Parkhill

R

70

67

Y

E1_PV

E1_PV_R01 to E1_PV_R05

Park Villa

R

70

46 - 71

N

E1_RLS

E1_RLS_R01 to E1_RLS_R04

Recours La Serre

R

70

45 - 64

Y

E1_SHT

E1_SHT_R01 to E1_SHT_R07

Shan Ha Tsuen

R

70

54 - 64

Y

E1_TYST

E1_TYST_R01 to E1_TYST_ R14, E1_TYST_R20 to E1_TYST_ R23, E1_TYST_R31 to E1_TYST_R38

Tong Yan San Tsuen

R

70

46 - 71

N

E1_WG

E1_WG_R01

Winsor Garden

R

70

65

Y

E1_YHT

E1_YHT_T01

Yeung Hau Temple

W

65

48

Y

E2_MKTT

E2_MKTT_R01

Muk Kiu Tau Tsuen

R

70

71

N

E2_TLT

E2_TLT_R01

Tin Lung Tsuen

R

70

58

Y

E2_PST

E2_PST_R01

Pak Sha Tsuen

R

70

44

Y

E2_TLY

E2_TLY_R01 to E2_TLY_R02

Tin Lung Yuen

R

70

68 - 70

Y

Existing NSR (outside PDA)

E4_CFG

E4_CFG_R01 to E4_CFG_R02

Chun Fai Garden

R

70

67 - 71

N

E4_CPG

E4_CPG_R01

Chung Pak Garden

R

70

69

Y

E4_FSW

E4_FSW_R01 to E4_FSW_R02

Fui Sha Wai

R

70

63 - 67

Y

E4_FWM

E4_FWM_R01

Fu Wa Mansion

R

70

57

Y

E4_GM

E4_GM_R01

Garden Maple

R

70

71 - 76

N

E4_HCG

E4_HCG_R01 to E4_HCG_R02

Hang Cheong Garden

R

70

61 - 62

Y

E4_HG

E4_HG_R01

Hoover Garden

R

70

75

N

E4_HYTT

E4_HYTT_R01

Ha Yau Tin Tsuen

R

70

70 - 75

N

E4_JC

E4_JC_R01

Jasper Court

R

70

69 - 74

N

E4_KMYLS

E4_KMYLS_E01

Kwong Ming Ying Loi School

E

65

70 - 71

N

E4_KTST

E4_KTST_R01 to E4_KTST_R02

Kong Tau San Tsuen

R

70

75

N

E4_LA

E4_LA_E01

Lutheran Academy

E

65

66 - 72

N

E4_LFM

E4_LFM_R01

Lung Fai Mansion

R

70

73

N

E4_LG

E4_LG_R01 to E4_LG_R02

La Grove

R

70

71 - 78

N

E4_LHT

E4_LHT_R01 to E4_LHT_R05

Lam Hau Tsuen

R

70

63 - 68

Y

E4_LHWT

E4_LHWT_R01 to E4_LHWT_R04

Lam Hau Wai Tsuen

R

70

63 - 66

Y

E4_LTG

E4_LTG_R01

Lung Teng Garden

R

70

61

Y

E4_LTT

E4_LTT_R01 to E4_LTT_R28

Lung Tin Tsuen

R

70

46 - 78

N

E4_MKT

E4_MKT_R01 to E4_MKT_R05

Muk Kiu Tau Tsuen

R

70

59 - 70

Y

E4_OHP

E4_OHP_R01 to E4_OHP_R02

One Hyde Park

R

70

73 - 74

N

E4_PCG

E4_PCG_R01 to E4_PCG_R02

Pui Chak Garden

R

70

68 - 70

Y

E4_PHY

E4_PHY_R01 to E4_PHY_R02

Pitt Hwa Yuen

R

70

60 - 75

N

E4_PS

E4_PS_R01 to E4_PS_R03

Park Signature

R

70

70 - 74

N

E4_PST

E4_PST_R01 to E4_PST_R20

Pak Sha Tsuen

R

70

59 - 73

N

E4_PSV

E4_PSV_R01 to E4_PSV_R02

Parkside Villa

R

70

68 - 75

N

E4_RP

E4_RP_R01 to E4_RP_R02

Regent's Park

R

70

59 - 72

N

E4_SCST

E4_SCST_R01 to E4_SCST_R02

Sham Chung San Tsuen

R

70

67 - 72

N

E4_SCT

E4_SCT_R01 to E4_SCT_R03

Sham Chung Tsuen

R

70

63 - 73

N

E4_SG

E4_SG_ R01 to E4_SG_ R02

Scenic Gardens

R

70

61 – 75

N

E4_SHT

E4_SHT_R01 to E4_SHT_R07

Shan Ha Tsuen

R

70

32 - 52

Y

E4_SMG

E4_SMG_R01 to E4_SMG_R04

Sun Mei Garden

R

70

76 - 78

N

E4_STG

E4_STG_R01

Sun Tong Garden

R

70

66

Y

E4_SV

E4_SV_R01

Sereno Verde

R

70

68 - 73

N

E4_SYTT

E4_SYTT_R01

Sheung Yau Tin Tsuen

R

70

78

N

E4_TKL

E4_TKL_R01

Tai Kei Leng

R

70

67

Y

E4_TKLT

E4_TKLT_R01 to E4_TKLT_R06

Tai Kei Leng Tsuen

R

70

70 - 78

N

E4_TKT

E4_TKT_R01 to E4_TKT_R03

Tan Kwai Tsuen

R

70

66 - 73

N

E4_TLT

E4_TLT_R01 to E4_TKT_R18

Tin Liu Tsuen

R

70

58 - 78

N

E4_TR

E4_TR_R01

The Reach

R

70

72 - 75

N

E4_TTT

E4_TTT_R01 to E4_TTT_R03

Tai Tao Tsuen

R

70

67 - 69

Y

E4_TYST

E4_TYST_R01

Tong Yan San Tsuen

R

70

64 - 66

Y

E4_UT

E4_UT_ R01 to E4_UT_ R06

Uptown

R

70

74 - 80

N

E4_WNT

E4_WNT_R01 to E4_WNT_R13

Wong Nai Tun Tsuen

R

70

36 - 63

Y

E4_WY

E4_WY_R01

Wa Yuen

R

70

61 - 62

Y

E4_YH

E4_YH_R01 to E4_YH_R02

Yoho Town

R

70

71 - 74

N

E4_YHM

E4_YHM_R01

Yoho Midtown

R

70

75 - 77

N

Planned NSRs

P_R2.2

P_R2.2_R01 to P_R2.2_R20

Public housing

R

70

52 - 74

N

P_VR1.1

P_VR1.1_R01 to P_VR1.1_R02

Village rehousing

R

70

59 - 60

Y

P_VR2.1

P_VR2.1_R01 to P_VR2.1_R02

Village rehousing

R

70

52 - 53

Y

P_LBIH

P_LBIH_R01 to P_LBIH_R02

Planned Public Housing Development in Long Bin

R

70

75 - 81

N

Note:

[1] The assessment will only include NSRs which rely on opened windows for ventilation. 

[2] The first layer of NSRs within 300m from the boundary of the planned road works and the committed/ planned NSRs of the Project is included.

[3] R – Residential Premises; E – Educational Institutions; W – Place of Worship. The land uses of the planned NSRs within the PDA are identified based on the RODP. The land uses of P_LBIH is identified based on DC Discussion Paper “Consultation on the proposed amendments to the approved TYST Outline Zoning Plan No. S/YL-TYST/10”.

[4] Noise levels presented are rounded to the nearest dB(A).

Table 5.6.1b   Summary of the predicted road traffic noise impact at existing and planned NSRs under unmitigated scenario (Year 2033)

NSR

NAP ID[1,2]

Description

Uses[3]

Noise Criterion,

L10 (1 hr), dB(A)

Predicted Unmitigated Overall Noise Level,

(L10 (1 hr), dB(A))[4]

Compliance of Noise Criteria (Y/N)

Existing NSR (within PDA)

E1_CLMY

E1_CLMY_T01

Chuk Lam Ming Yuen Monastery

W

65

52 - 54

Y

E1_ELD

E1_ELD_R01

Eldorado

R

70

74 - 75

N

E1_FLG

E1_FLG_R01

Fu Lai Garden

R

70

67 - 73

N

E1_GR

E1_GR_R01

Greenville Residence

R

70

74 - 75

N

E1_KLG

E1_KLG_R01

Kam Lai Garden

R

70

69 - 73

N

E1_KLK

E1_KLK_T01

Kam Lan Koon

W

65

50

Y

E1_KV

E1_KV_R01 to E1_KV_R02

Kisland Villa

R

70

65 - 75

N

E1_LHT

E1_LHT_R01

Lam Hau Tsuen

R

70

67 - 68

Y

E1_MG

E1_MG_R01

Marbella Gardens

R

70

74 - 76

N

E1_PH

E1_PH_R01

The Parkhill

R

70

72 - 73

N

E1_PV

E1_PV_R01 to E1_PV_R05

Park Villa

R

70

47 - 73

N

E1_RLS

E1_RLS_R01 to E1_RLS_R04

Recours La Serre

R

70

50 - 67

Y

E1_SHT

E1_SHT_R01 to E1_SHT_R07

Shan Ha Tsuen

R

70

63 - 71

N

E1_TYST

E1_TYST_R01 to E1_TYST_R14, E1_TYST_R20 to E1_TYST_R23, E1_TYST_R31 to E1_TYST_R38

Tong Yan San Tsuen

R

70

48 - 76

N

E1_WG

E1_WG_R01

Winsor Garden

R

70

74 - 75

N

E1_YHT

E1_YHT_T01

Yeung Hau Temple

W

65

55

Y

E2_MKTT

E2_MKTT_R01

Muk Kiu Tau Tsuen

R

70

69

Y

E2_TLT

E2_TLT_R01

Tin Lung Tsuen

R

70

62

Y

E2_TLY

E2_TLY_R01 to E2_TLY_R02

Tin Lung Yuen

R

70

72 - 73

N

Existing NSR (outside PDA)

E4_CFG

E4_CFG_R01 to E4_CFG_R02

Chun Fai Garden

R

70

65 - 70

Y

E4_CPG

E4_CPG_R01

Chung Pak Garden

R

70

67

Y

E4_FSW

E4_FSW_R01 to E4_FSW_R02

Fui Sha Wai

R

70

64 - 68

Y

E4_FWM

E4_FWM_R01

Fu Wa Mansion

R

70

55

Y

E4_GM

E4_GM_R01

Garden Maple

R

70

72 - 76

N

E4_HCG

E4_HCG_R01 to E4_HCG_R02

Hang Cheong Garden

R

70

66

Y

E4_HG

E4_HG_R01

Hoover Garden

R

70

74 - 75

N

E4_HYTT

E4_HYTT_R01

Ha Yau Tin Tsuen

R

70

69 - 73

N

E4_JC

E4_JC_R01

Jasper Court

R

70

74 - 76

N

E4_KMYLS

E4_KMYLS_E01

Kwong Ming Ying Loi School

E

65

69 - 70

N

E4_KTST

E4_KTST_R01 to E4_KTST_R02

Kong Tau San Tsuen

R

70

75

N

E4_LA

E4_LA_E01

Lutheran Academy

E

65

65 - 72

N

E4_LFM

E4_LFM_R01

Lung Fai Mansion

R

70

73

N

E4_LG

E4_LG_R01 to E4_LG_R02

La Grove

R

70

72 - 78

N

E4_LHT

E4_LHT_R01 to E4_LHT_R05

Lam Hau Tsuen

R

70

64 - 68

Y

E4_LHWT

E4_LHWT_R01 to E4_LHWT_R04

Lam Hau Wai Tsuen

R

70

63 - 67

Y

E4_LTG

E4_LTG_R01

Lung Teng Garden

R

70

67

Y

E4_LTT

E4_LTT_R01 to E4_LTT_R28

Lung Tin Tsuen

R

70

48 - 79

N

E4_MKT

E4_MKT_R01 to E4_MKT_R05

Muk Kiu Tau Tsuen

R

70

62 - 67

Y

E4_OHP

E4_OHP_R01 to E4_OHP_R02

One Hyde Park

R

70

68

Y

E4_PCG

E4_PCG_R01 to E4_PCG_R02

Pui Chak Garden

R

70

64 - 66

Y

E4_PHY

E4_PHY_R01 to E4_PHY_R02

Pitt Hwa Yuen

R

70

60 - 74

N

E4_PS

E4_PS_R01 to E4_PS_R03

Park Signature

R

70

72 - 75

N

E4_PST

E4_PST_R01 to E4_PST_R20

Pak Sha Tsuen

R

70

62 - 69

Y

E4_PSV

E4_PSV_R01 to E4_PSV_R02

Parkside Villa

R

70

65 - 73

N

E4_RP

E4_RP_R01 to E4_RP_R02

Regent's Park

R

70

54 - 68

Y

E4_SCST

E4_SCST_R01 to E4_SCST_R02

Sham Chung San Tsuen

R

70

68 - 72

N

E4_SCT

E4_SCT_R01 to E4_SCT_R03

Sham Chung Tsuen

R

70

65 - 74

N

E4_SG

E4_SG_R01 to E4_SG_R02

Scenic Gardens

R

70

54 - 73

N

E4_SHT

E4_SHT_R01 to E4_SHT_R07

Shan Ha Tsuen

R

70

55 - 71

N

E4_SMG

E4_SMG_R01 to E4_SMG_R04

Sun Mei Garden

R

70

71 - 73

N

E4_STG

E4_STG_R01

Sun Tong Garden

R

70

66 - 67

Y

E4_SV

E4_SV_R01

Sereno Verde

R

70

68 - 73

N

E4_SYTT

E4_SYTT_R01

Sheung Yau Tin Tsuen

R

70

77

N

E4_TKL

E4_TKL_R01

Tai Kei Leng

R

70

68

Y

E4_TKLT

E4_TKLT_R01 to E4_TKLT_R06

Tai Kei Leng Tsuen

R

70

70 - 78

N

E4_TKT

E4_TKT_R01 to E4_TKT_R03

Tan Kwai Tsuen

R

70

66 - 73

N

E4_TLT

E4_TLT_R01 to E4_TLT_R18

Tin Liu Tsuen

R

70

59 - 74

N

E4_TR

E4_TR_R01

The Reach

R

70

69 - 75

N

E4_TTT

E4_TTT_R01 to R03

Tai Tao Tsuen

R

70

65 - 68

Y

E4_TYST

E4_TYST_R01

Tong Yan San Tsuen

R

70

66 - 68

Y

E4_UT

E4_UT_R01 to E4_UT_R06

Uptown

R

70

73 - 79

N

E4_WNT

E4_WNT_R01 to E4_WNT_R13

Wong Nai Tun Tsuen

R

70

38 - 67

Y

E4_WY

E4_WY_R01

Wa Yuen

R

70

66 - 67

Y

E4_YH

E4_YH_R01 to E4_YH_R02

Yoho Town

R

70

70 - 74

N

E4_YHM

E4_YHM_R01

Yoho Midtown

R

70

76 - 77

N

Planned NSRs

P_E2.1

P_E2.1_E01 to P_E2.1_E04

Planned primary school

E

65

60 - 67

N

P_E2.2

P_E2.2_E01 to P_E2.2_E02

Planned primary school

E

65

55 - 60

Y

P_E2.3

P_E2.3_E01 to P_E2.3_E03

Planned primary school

E

65

64 - 66

N

P_E2.4

P_E2.4_E01 to P_E2.4_E04

Planned primary school

E

65

59 - 63

Y

P_R2.1a

P_R2.1a_R01 to P_R2.1a_R05

Private housing

R

70

54 - 72

N

P_R2.1b

P_R2.1b_R01 to P_R2.1b_R03

Public housing

R

70

57 - 73

N

P_R2.2

P_R2.2_R01 to P_R2.2_R20

Public housing

R

70

55 - 75

N

P_R2.3

P_R2.3_R01 to P_R2.3_R08

Public housing

R

70

62 - 73

N

P_R2.4

P_R2.4_R01 to P_R2.4_R14

Public housing

R

70

62 - 72

N

P_R2.5

P_R2.5_R01 to P_R2.5_R10

Public housing

R

70

62 - 70

Y

P_VR1.1

P_VR1.1_R01 to P_VR1.1_R02

Village rehousing

R

70

69 - 71

N

P_VR2.1

P_VR2.1_R01 to P_VR2.1_R02

Village rehousing

R

70

71 - 72

N

P_VR3.1

P_VR3.1_R01

Village rehousing

R

70

54

Y

P_LBIH

P_LBIH_R01 to P_LBIH_R02

Planned Public Housing Development in Long Bin

R

70

77 - 80

N

Note:

[1] The assessment will only include NSRs which rely on opened windows for ventilation. 

[2] The first layer of NSRs within 300m from the boundary of the planned road works and the committed and planned NSRs of the Project is included.

[3] R – Residential Premises; E – Educational Institutions; W – Place of Worship. The land uses of the planned NSRs within the PDA are identified based on the RODP. The land uses of P_LBIH is identified based on DC Discussion Paper “Consultation on the proposed amendments to the approved TYST Outline Zoning Plan No. S/YL-TYST/10”.

[4] Noise levels presented are rounded to the nearest dB(A).

 

Table 5.6.1c   Summary of the predicted road traffic noise impact at existing and planned NSRs under unmitigated scenario (Year 2053)

NSR

NAP ID[1,2]

Description

Uses[3]

Noise Criterion,

L10 (1 hr), dB(A)

Predicted Unmitigated Overall Noise Level,

(L10 (1 hr), dB(A))[4]

Compliance of Noise Criteria (Y/N)

Existing NSR (within PDA)

E1_CLMY

E1_CLMY_T01

Chuk Lam Ming Yuen Monastery

W

65

60 - 61

Y

E1_ELD

E1_ELD_R01

Eldorado

R

70

75

N

E1_FLG

E1_FLG_R01

Fu Lai Garden

R

70

69 - 74

N

E1_GR

E1_GR_R01

Greenville Residence

R

70

69 - 70

Y

E1_KLG

E1_KLG_R01

Kam Lai Garden

R

70

69 - 76

N

E1_KLK

E1_KLK_T01

Kam Lan Koon

W

65

63

Y

E1_KV

E1_KV_R01 to E1_KV_R02

Kisland Villa

R

70

72 - 73

N

E1_LHT

E1_LHT_R01

Lam Hau Tsuen

R

70

73

N

E1_MG

E1_MG_R01

Marbella Gardens

R

70

69 - 70

Y

E1_PH

E1_PH_R01

The Parkhill

R

70

70 - 71

N

E1_PV

E1_PV_R01 to E1_PV_R05

Park Villa

R

70

53 - 76

N

E1_RLS

E1_RLS_R01 to E1_RLS_R04

Recours La Serre

R

70

63 - 72

N

E1_SHT

E1_SHT_R01 to E1_SHT_R07

Shan Ha Tsuen

R

70

66 - 76

N

E1_TYST

E1_TYST_R01 to E1_TYST_R14, E1_TYST_R20 to E1_TYST_R23

Tong Yan San Tsuen

R

70

62 - 77

N

E1_WG

E1_WG_R01

Winsor Garden

R

70

71 - 72

N

E1_YHT

E1_YHT_T01

Yeung Hau Temple

W

65

55

Y

E2_MKTT

E2_MKTT_R01

Muk Kiu Tau Tsuen

R

70

73

N

E2_TLT

E2_TLT_R01

Tin Lung Tsuen

R

70

65

Y

E2_TLY

E2_TLY_R01 to E2_TLY_R02

Tin Lung Yuen

R

70

73 - 74

N

Existing NSR (outside PDA)

E4_CFG

E4_CFG_R01 to E4_CFG_R02

Chun Fai Garden

R

70

68 - 72

N

E4_CPG

E4_CPG_R01

Chung Pak Garden

R

70

70 - 71

N

E4_FSW

E4_FSW_R01 to E4_FSW_R02

Fui Sha Wai

R

70

65 - 69

Y

E4_FWM

E4_FWM_R01

Fu Wa Mansion

R

70

55 - 56

Y

E4_GM

E4_GM_R01

Garden Maple

R

70

72 - 76

N

E4_HCG

E4_HCG_R01 to E4_HCG_R02

Hang Cheong Garden

R

70

66

Y

E4_HG

E4_HG_R01

Hoover Garden

R

70

75 - 76

N

E4_HYTT

E4_HYTT_R01

Ha Yau Tin Tsuen

R

70

70- 75

N

E4_JC

E4_JC_R01

Jasper Court

R

70

76 - 78

N

E4_KMYLS

E4_KMYLS_E01

Kwong Ming Ying Loi School

E

65

70 - 71

N

E4_KTST

E4_KTST_R01 to E4_KTST_R02

Kong Tau San Tsuen

R

70

76

N

E4_LA

E4_LA_E01

Lutheran Academy

E

65

65 - 73

N

E4_LFM

E4_LFM_R01

Lung Fai Mansion

R

70

74

N

E4_LG

E4_LG_R01 to E4_LG_R02

La Grove

R

70

72 - 79

N

E4_LHT

E4_LHT_R01 to E4_LHT_R05

Lam Hau Tsuen

R

70

65 - 73

N

E4_LHWT

E4_LHWT_R01 to E4_LHWT_R04

Lam Hau Wai Tsuen

R

70

64 - 67

Y

E4_LTG

E4_LTG_R01

Lung Teng Garden

R

70

67

Y

E4_LTT

E4_LTT_R01 to E4_LTT_R28

Lung Tin Tsuen

R

70

49 - 79

N

E4_MKT

E4_MKT_R01 to E4_MKT_R05

Muk Kiu Tau Tsuen

R

70

63 - 71

N

E4_OHP

E4_OHP_R01 to E4_OHP_R02

One Hyde Park

R

70

71

N

E4_PCG

E4_PCG_R01 to E4_PCG_R02

Pui Chak Garden

R

70

67 - 69

Y

E4_PHY

E4_PHY_R01 to E4_PHY_R02

Pitt Hwa Yuen

R

70

62 - 76

N

E4_PS

E4_PS_R01 to E4_PS_R03

Park Signature

R

70

72 - 75

N

E4_PST

E4_PST_R01 to E4_PST_R20

Pak Sha Tsuen

R

70

57 - 75

N

E4_PSV

E4_PSV_R01 to E4_PSV_R02

Parkside Villa

R

70

69 - 75

N

E4_RP

E4_RP_R01 to E4_RP_R02

Regent's Park

R

70

57 - 71

N

E4_SCST

E4_SCST_R01 to E4_SCST_R02

Sham Chung San Tsuen

R

70

69 - 72

N

E4_SCT

E4_SCT_R01 to E4_SCT_R03

Sham Chung Tsuen

R

70

65 - 75

N

E4_SG

E4_SG_R01 to E4_SG_R02

Scenic Gardens

R

70

61 - 75

N

E4_SHT

E4_SHT_R01 to E4_SHT_R07

Shan Ha Tsuen

R

70

57 - 76

N

E4_SMG

E4_SMG_R01 to E4_SMG_R04

Sun Mei Garden

R

70

73 - 75

N

E4_STG

E4_STG_R01

Sun Tong Garden

R

70

69

Y

E4_SV

E4_SV_R01

Sereno Verde

R

70

69 - 74

N

E4_SYTT

E4_SYTT_R01

Sheung Yau Tin Tsuen

R

70

78

N

E4_TKL

E4_TKL_R01

Tai Kei Leng

R

70

68

Y

E4_TKLT

E4_TKLT_R01 to E4_TKLT_R06

Tai Kei Leng Tsuen

R

70

72 - 80

N

E4_TKT

E4_TKT_R01 to E4_TKT_R03

Tan Kwai Tsuen

R

70

67 - 74

N

E4_TLT

E4_TLT_R01 to E4_TLT_R18

Tin Liu Tsuen

R

70

61 - 77

N

E4_TR

E4_TR_R01

The Reach

R

70

70 - 76

N

E4_TTT

E4_TTT_R01 to R03

Tai Tao Tsuen

R

70

66 - 71

N

E4_TYST

E4_TYST_R01

Tong Yan San Tsuen

R

70

68 - 69

Y

E4_UT

E4_UT_R01 to E4_UT_R06

Uptown

R

70

74 - 81

N

E4_WNT

E4_WNT_R01 to E4_WNT_R13

Wong Nai Tun Tsuen

R

70

52 - 67

Y

E4_WY

E4_WY_R01

Wa Yuen

R

70

67

Y

E4_YH

E4_YH_R01 to E4_YH_R02

Yoho Town

R

70

71 - 75

N

E4_YHM

E4_YHM_R01

Yoho Midtown

R

70

76 - 78

N

Planned NSRs

P_E1.1

P_E1.1_E01 to P_E1.1_E02

Planned primary school

E

65

60 - 62

Y

P_E2.1

P_E2.1_E01 to P_E2.1_E04

Planned primary school

E

65

62 - 70

N

P_E2.2

P_E2.2_E01 to P_E2.2_E02

Planned primary school

E

65

56 - 63

Y

P_E2.3

P_E2.3_E01 to P_E2.3_E03

Planned primary school

E

65

66 - 69

N

P_E2.4

P_E2.4_E01 to P_E2.4_E04

Planned primary school

E

65

62 - 66

N

P_E3.1

P_E3.1_E01 to P_E3.1_E03

Planned primary school

E

65

64 - 68

N

P_E3.2

P_E3.2_E01 to P_E3.2_E03

Planned primary school

E

65

62 - 66

N

P_E3.3

P_E3.3_E01 to P_E3.3_E03

Planned primary school

E

65

67 - 73

N

P_G2.4

P_G2.4_R01

Married quarters

R

70

71 - 74

N

P_R1.1

P_R1.1_R01 to P_R1.1_R04

Private housing

R

70

66 - 69

Y

P_R1.2

P_R1.2_R01 to P_R1.2_R05

Private housing

R

70

62 - 66

Y

P_R1.3

P_R1.3_R01 to P_R1.3_R09

Private housing

R

70

67 - 73

N

P_R1.4

P_R1.4_R01 to P_R1.4_R09

Private housing

R

70

67 - 71

N

P_R1.5

P_R1.5_R01 to P_R1.5_R03

Private housing

R

70

70 - 73

N

P_R1.6

P_R1.6_R01 to P_R1.6_R02

Private housing

R

70

71 - 73

N

P_R1.7

P_R1.7_R01 to P_R1.7_R08

Private housing

R

70

67 - 73

N

P_R1.8

P_R1.8_R01 to P_R1.8_R08

Private housing

R

70

70 - 74

N

P_R1.9

P_R1.9_R01 to P_R1.9_R03

Private housing

R

70

58 - 64

Y

P_R1.10

P_R1.10_R01 to P_R1.10_R09

Private housing

R

70

63 - 77

N

P_R1.11

P_R1.11_R01 to P_R1.11_R03

Private housing

R

70

64 - 70

Y

P_R1.12

P_R1.12_R01 to P_R1.12_R06

Private housing

R

70

69 - 73

N

P_R1.13

P_R1.13_R01 to P_R1.13_R04

Private housing

R

70

62 - 73

N

P_R1.14

P_R1.14_R01 to P_R1.14_R05

Private housing

R

70

71 - 74

N

P_R1.15

P_R1.15_R01 to P_R1.15_R02

Private housing

R

70

65 - 66

Y

P_R1.16

P_R1.16_R01 to P_R1.16_R07

Private housing

R

70

72 - 75

N

P_R2.1a

P_R2.1a_R01 to P_R2.1a_R05

Private housing

R

70

60 - 73

N

P_R2.1b

P_R2.1b_R01 to P_R2.1b_R03

Public housing

R

70

64 - 73

N

P_R2.2

P_R2.2_R01 to P_R2.2_R20

Public housing

R

70

63 - 76

N

P_R2.3

P_R2.3_R01 to P_R2.3_R08

Public housing

R

70

67 - 74

N

P_R2.4

P_R2.4_R01 to P_R2.4_R14

Public housing

R

70

66 - 73

N

P_R2.5

P_R2.5_R01 to P_R2.5_R10

Public housing

R

70

64 - 69

Y

P_R2.6a

P_R2.6a_R01 to P_R2.6a_R07

Private housing

R

70

64 - 73

N

P_R2.6b

P_R2.6b_R01 to P_R2.6b_R03

Private housing

R

70

63 - 66

Y

P_R2.6c

P_R2.6c_R01 to P_R2.6c_R04

Private housing

R

70

49 - 73

N

P_R2.6d

P_R2.6d_R01 to P_R2.6d_R03

Private housing

R

70

55 - 74

N

P_R2.7

P_R2.7_R01 to P_R2.7_R04

Private housing

R

70

66 - 74

N

P_R2.8

P_R2.8_R01 to P_R2.8_R06

Public housing

R

70

67 - 75

N

P_R3.1a

P_R3.1a_R01 to P_R3.1a_R02

Private housing

R

70

65 - 70

Y

P_R3.1b

P_R3.1b_R01 to P_R3.1b_R03

Private housing

R

70

69 - 76

N

P_R3.1c

P_R3.1c_R01 to P_R3.1c_R02

Private housing

R

70

67 - 73

N

P_R3.1d

P_R3.1d_R01

Private housing

R

70

63 - 65

Y

P_R3.1e

P_R3.1e_R01 to P_R3.1e_R02

Private housing

R

70

69 - 72

N

P_R3.2

P_R3.2_R01 to P_R3.2_R04

Private housing

R

70

67 - 71

N

P_R3.3

P_R3.3_R01 to P_R3.3_R03

Private housing

R

70

64 - 68

Y

P_R3.4a

P_R3.4a_R01 to P_R3.4a_R04

Private housing

R

70

65 - 74

N

P_R3.4b

P_R3.4b_R01 to P_R3.4b_R04

Private housing

R

70

65 - 72

N

P_R3.5a

P_R3.5a_R01 to P_R3.5a_R03

Private housing

R

70

69 - 75

N

P_R3.5b

P_R3.5b_R01 to P_R3.5b_R03

Private housing

R

70

52 - 68

Y

P_R3.6a

P_R3.6a_R01 to P_R3.6a_R02

Private housing

R

70

67 - 70

Y

P_R3.6b

P_R3.6b_R01 to P_R3.6b_R02

Private housing

R

70

68 - 69

Y

P_OU1.1

P_OU1.1_R01 to P_OU1.1_R09

Private housing

R

70

67 - 76

N

P_OU1.2a

P_OU1.2a_R01 to P_OU1.2a_R10

Private housing

R

70

70 - 77

N

P_OU1.3

P_OU1.3_R01 to P_OU1.3_R05

Private housing

R

70

64 - 74

N

P_OU2.3

P_OU2.3_R01 to P_OU2.3_R04

Private housing

R

70

64 - 69

Y

P_OU3.2a

P_OU3.2a_R01 to P_OU3.2a_R04

Private housing

R

70

67 - 69

Y

P_OU3.2b

P_OU3.2b_R01 to P_OU3.2b_R02

Private housing

R

70

65 - 68

Y

P_VR1.1

P_VR1.1_R01 to P_VR1.1_R02

Village rehousing

R

70

74 - 75

N

P_VR2.1

P_VR2.1_R01 to P_VR2.1_R02

Village rehousing

R

70

72

N

P_VR3.1

P_VR3.1_R01

Village rehousing

R

70

67

Y

P_LBIH

P_LBIH_R01 to P_LBIH_R02

Planned Public Housing Development in Long Bin

R

70

77 - 81

N

Note:

[1] The assessment will only include NSRs which rely on opened windows for ventilation. 

[2] The first layer of NSRs within 300m from the boundary of the planned road works and the committed and planned NSRs of the Project is included.

[3] R – Residential Premises; E – Educational Institutions; W – Place of Worship. The land uses of the planned NSRs within the PDA are identified based on the RODP. The land uses of P_LBIH is identified based on DC Discussion Paper “Consultation on the proposed amendments to the approved TYST Outline Zoning Plan No. S/YL-TYST/10”.

[4] Noise levels presented are rounded to the nearest dB(A).

 

 

           


Existing NSRs (Unmitigated Scenario)

5.6.2.3                Referring to Table 5.6.1 and Appendix 5.15, the predicted noise levels at the representative existing NSRs within and outside the PDA under unmitigated scenario would be in the range of 45 – 77 dB(A) and 32 – 81 dB(A) respectively. Most of the representative existing NSRs would be exposed to noise levels exceeding the relevant noise criteria (i.e. 70dB(A) for residential and 65dB(A) for schools and places of public worship). Mitigation measures are proposed where appropriate to alleviate the potential road traffic noise impact.

Planned NSRs (Unmitigated Scenario)

5.6.2.4                From Table 5.6.1 and Appendix 5.15, the predicted noise levels at Year 2053 at the planned NSRs will be in the range of 49 to 77 dB(A). Other than the environmental friendly design such as EFTS considered in the RODP, the RODP has also been proactively refined during the EIA process as far as practicable to maximise separation distance between road alignment and existing and planned NSRs, locating non-noise sensitive buildings at the site OU(OS), OU (SU)1, OU(SU)2 and OU(S+W) next to YLH to screen the road traffic noise for the planned NSRs and providing of depressed roads for some slip roads of TYST Interchange.  All these initiatives would result in lower traffic flow in various roads including Kung Um Road. However, results indicate that most planned residential and educational NSRs would still exceed the noise criteria by up to 7 dB(A) and 8 dB(A) respectively. Hence, direct mitigation measures for these affected NSRs are required.  For those non-compliant planned educational institutions, the detailed design shall consider suitable mitigation measures as recommended in the Class Assessment Document following ETWB Technical Circular (Works) No. 13/2003.

5.6.2.5                Hence, the total number of dwellings and classrooms that will be exposed to noise impact exceeding the criteria set out in Annex 5 of the EIAO-TM under unmitigated scenario has been summarised in Table 5.6.1d. All these affected NSRs would be significantly reduced after implementation of mitigation measures. (See Sections 5.6.3).

Table 5.6.1d Number of residential dwellings/classrooms exceeding the respective criteria under unmitigated scenario

Stages

No. of Existing Dwellings

No. of Existing Classrooms

No. of Planned

Dwellings

No. of Planned

Classrooms

Stage 1

4300

50

300

0

Stage 2

4050

50

1250

50

Stages 3 and 4

4950

50

5350

150

5.6.3                  Mitigation of Road Traffic Noise Impact

Direct Mitigation Measures

5.6.3.1                According to the traffic forecast, there will be high volume of traffic flows on some major roads within or surrounding the PDA, namely YLH, TYST Interchange, TSWW Interchange, Shap Pat Heung Interchange, Long Ho Road, Tai Kei Leng Road and Planned Road D1. With the existing noise barriers and LNRS on YLH and the retrofitting barriers and existing LNRS on Long Tin Road, exceedance of the noise criteria at some existing and planned NSRs are still predicted in the unmitigated scenario. Noise mitigation measures would therefore be required to alleviate the potential road traffic noise impact.

5.6.3.2                The following noise mitigation measures are proposed to alleviate adverse traffic noise impact on the affected NSRs:

·           Absorptive vertical barriers and cantilevered noise barriers along some sections of Project roads and Kung Um Road;

·           LNRS on some road sections;

·           Semi-enclosures or full enclosures at primary distributor roads at TYST Interchange, local roads at sections of Kung Um Road;

·           Nullah features / barriers along some sections of Yuen Long Nullah (Kiu Hing Road); and

·           Alternative building orientation for some planned schools.

5.6.3.3                The details of proposed LNRS, noise barriers, enclosures and alternative building orientation are summarised in Table 5.6.2, Table 5.6.3, Table 5.6.4 and Table 5.6.5 respectively. The locations of the noise mitigation measures and LNRS for road traffic noise impacts are shown in Figure 5.7. Different materials for LNRS are being reviewed and tested by the Government for application in Hong Kong. Environmental reviews will be conducted at the later design stage to review the proposed noise mitigation measures taking into account the latest design standard at that time for the application of the LNRS materials.


Table 5.6.2 Extents and locations of proposed low noise road surfacing

ID

Location

Approximate Length, m

Figure Reference

 Stage 1

LNRS28

Lam Tai East Road

465

Figure 5.7b

LNRS32

Kiu Hing Road (North of YLH)

260

Figure 5.7b

LNRS35

Proposed Road L1

410

Figure 5.7b

LNRS36

Proposed Road L1

410

Figure 5.7b

LNRS37

Proposed Road L1

375

Figure 5.7b

LNRS38

Proposed Road L1

375

Figure 5.7b

LNRS45

Kung Um Road (North of YLH)

40

Figure 5.7b

Stage 2

LNRS02

Proposed Road L12

290

Figure 5.7a

LNRS03

Proposed Road L20

1050

Figure 5.7a

LNRS05

Proposed Road L12

130

Figure 5.7a

LNRS06

TYST Interchange

120

Figure 5.7a

LNRS07

TYST Interchange

265

Figure 5.7a

LNRS08

TYST Interchange (Loop)

625

Figure 5.7a

LNRS09

Slip Road near TYST Interchange

555

Figure 5.7a

LNRS10

TYST Interchange

125

Figure 5.7a

LNRS11

TYST Interchange

140

Figure 5.7a

LNRS12

TYST Interchange

115

Figure 5.7a

LNRS13

Long Tin Road

230

Figure 5.7a

LNRS14

TYST Interchange

80

Figure 5.7a

LNRS15

Slip Road near TYST Interchange

160

Figure 5.7a

LNRS16

TYST Interchange

95

Figure 5.7a

LNRS20

Proposed Road L14

50

Figure 5.7a

LNRS21

Proposed Road D1

935

Figure 5.7a

LNRS22

Proposed Road D1

930

Figure 5.7a

LNRS23

Proposed Road D2

510

Figure 5.7c

LNRS24

Proposed Road D2

510

Figure 5.7c

LNRS27

Lam Tai West Road

475

Figure 5.7b

LNRS29

Proposed Road L2

90

Figure 5.7b

LNRS30

Lam Tai West Road

385

Figure 5.7b & c

LNRS31

Lam Tai East Road

385

Figure 5.7b & c

LNRS33

Proposed Road L25

2165

Figure 5.7b & c

LNRS39

Tai Kei Leng Road

310

Figure 5.7b

LNRS40

Tai Kei Leng Road

320

Figure 5.7b

LNRS41

Tai Kei Leng Road

430

Figure 5.7b

LNRS43

Long Ho Road

215

Figure 5.7b

LNRS47

TYST Interchange

210

Figure 5.7a

LNRS48

Proposed Road L5

140

Figure 5.7c

Stage 3 and 4

LNRS01

Slip road near TSWW Interchange

140

Figure 5.7a

LNRS04

Proposed Road L13

90

Figure 5.7a

LNRS17

Shan Ha Road

95

Figure 5.7a

LNRS18

Proposed Road L15

100

Figure 5.7a

LNRS19

Proposed Road L15

250

Figure 5.7a

LNRS25

Proposed Road D1

795

Figure 5.7c

LNRS26

Proposed Road D1

790

Figure 5.7c

LNRS34

Proposed Road L6

640

Figure 5.7c

LNRS42

Proposed Road L18

100

Figure 5.7a

LNRS46

Proposed Road L15

115

Figure 5.7b

LNRS49

Proposed Road L7

130

Figure 5.7c

LNRS50

TYST Road

315

Figure 5.7a

Note:

[1] The provision of LNRS should be constructed and maintained by responsible parties, i.e. CEDD and Highways Department respectively.

Table 5.6.3 Extents and locations of proposed noise barriers

Noise Barrier ID[1]

Location

Barrier Type

Height, m

Approximate Length, m

Figure Reference

Stage 1

CB_E02

Proposed Road L1

Cantilevered Barrier

5+3m at 45o

265

Figure 5.7b

CB_E03

Proposed Road L25

Cantilevered Barrier

4+3m at 45o

15

Figure 5.7b

CB_E04

Proposed Road L25

Cantilevered Barrier

4+3m at 45o

80

Figure 5.7b

CB_E05

Proposed Road L25

Cantilevered Barrier

4+3m at 45o

90

Figure 5.7b

CB_E26

Proposed Road L25

Cantilevered Barrier

4+3m at 45o

30

Figure 5.7b

CB_E27

Proposed Road L25

Cantilevered Barrier

4+3m at 45o

20

Figure 5.7b

VB_E14

Proposed Road L1

Vertical Barrier

3

20

Figure 5.7b

VB_E25

Proposed Road L25

Vertical Barrier

2

11

Figure 5.7b

VB_E42

Proposed Road L1

Vertical Barrier

3

155

Figure 5.7b

VB_E47

Proposed Road L1

Vertical Barrier

3

25

Figure 5.7b

VB_P17

Lam Tai East Road

Vertical Barrier

6

50

Figure 5.7b

Stage 2

CB_E01

Proposed Road L12

Cantilevered Barrier

5+3m at 45o

75

Figure 5.7a

CB_E16

Tai Kei Leng Road

Cantilevered Barrier

5+3m at 45o

95

Figure 5.7b

CB_E18

Tai Kei Leng Road

Cantilevered Barrier

5+3m at 45o

65

Figure 5.7b

CB_E19

Kung Um Road

Cantilevered Barrier

5+3m at 45o

50

Figure 5.7b

CB_E20

Kung Um Road

Cantilevered Barrier

5+3m at 45o

20

Figure 5.7b

CB_E21

TYST Interchange

Cantilevered Barrier

5+3m at 45o

65

Figure 5.7a

CB_E22

Kung Um Road

Cantilevered Barrier

5+3m at 45o

11

Figure 5.7b

CB_E25

TYST Interchange

Cantilevered Barrier

5+3m at 45o

25

Figure 5.7a

CB_P10

Lam Tai West Road

Cantilevered Barrier

5+3m at 45o

40

Figure 5.7b

NF_E01

Yuen Long Nullah

Nullah Feature / Barrier

5

80

Figure 5.7b

NF_E05

Yuen Long Nullah

Nullah Feature / Barrier

3

150

Figure 5.7b

NF_E06

Yuen Long Nullah

Nullah Feature / Barrier

3

115

Figure 5.7b

VB_E03

Proposed Road L20

Vertical Barrier

3

140

Figure 5.7a

VB_E04

Proposed Road L11

Vertical Barrier

5

70

Figure 5.7a

VB_E05

TYST Interchange

Vertical Barrier

6[2]

100

Figure 5.7a

VB_E06

Proposed Road L12

Vertical Barrier

1

20

Figure 5.7a

VB_E08

Proposed Road L12

Vertical Barrier

3

40

Figure 5.7a

VB_E10

TYST Interchange

Vertical Barrier

5

25

Figure 5.7a

VB_E11

TYST Interchange

Vertical Barrier

5

125

Figure 5.7a

VB_E12

TYST Interchange

Vertical Barrier

6

125

Figure 5.7a

VB_E13

TYST Interchange

Vertical Barrier

6

95

Figure 5.7a

VB_E15

Slip Road near TYST Interchange

Vertical Barrier

3

95

Figure 5.7a

VB_E16

Slip Road near TYST Interchange

Vertical Barrier

6

125

Figure 5.7a

VB_E17

Slip Road near TYST Interchange

Vertical Barrier

6

95

Figure 5.7a

VB_E18

Shan Ha Road

Vertical Barrier

5

75

Figure 5.7a

VB_E19

TYST Interchange

Vertical Barrier

6

125

Figure 5.7a

VB_E20

Proposed Road D1

Vertical Barrier

3

110

Figure 5.7a

VB_E23

Proposed Road L25

Vertical Barrier

1

9

Figure 5.7c

VB_E26

Proposed Road L25

Vertical Barrier

5

20

Figure 5.7b

VB_E27

Proposed Road L25

Vertical Barrier

4

25

Figure 5.7b

VB_E28

Proposed Road L25

Vertical Barrier

5

9

Figure 5.7b

VB_E29

Proposed Road L25

Vertical Barrier

5

9

Figure 5.7b

VB_E30

Proposed Road L25

Vertical Barrier

5

8

Figure 5.7b

VB_E31

Proposed Road L25

Vertical Barrier

3

6

Figure 5.7b

VB_E32

Proposed Road L25

Vertical Barrier

3

25

Figure 5.7b

VB_E33

Proposed Road L25

Vertical Barrier

3

30

Figure 5.7b

VB_E34

Proposed Road L25

Vertical Barrier

1

16

Figure 5.7c

VB_E35

Proposed Road L25

Vertical Barrier

4

50

Figure 5.7c

VB_E36

Proposed Road L25

Vertical Barrier

5

7

Figure 5.7c

VB_E37

Proposed Road L25

Vertical Barrier

5

7

Figure 5.7c

VB_E38

Proposed Road L25

Vertical Barrier

5

13

Figure 5.7c

VB_E39

Proposed Road L25

Vertical Barrier

5

30

Figure 5.7c

VB_E40

Proposed Road L25

Vertical Barrier

3

12

Figure 5.7c

VB_E41

Proposed Road L25

Vertical Barrier

3

13

Figure 5.7c

VB_E43

Proposed Road L1

Vertical Barrier

3

20

Figure 5.7b

VB_E45

Tai Kei Leng Road

Vertical Barrier

3

285

Figure 5.7b

VB_E48

Tai Kei Leng Road

Vertical Barrier

3

50

Figure 5.7b

VB_E49

Tai Kei Leng Road

Vertical Barrier

3

70

Figure 5.7b

VB_E53

Proposed Road L12

Vertical Barrier

4

19

Figure 5.7a

VB_E54

Proposed Road D1

Vertical Barrier

4

25

Figure 5.7a

VB_E55

Proposed Road D1

Vertical Barrier

5

20

Figure 5.7a

VB_E56

Kung Um Road

Vertical Barrier

1

8

Figure 5.7c

VB_P18

Lam Tai West Road

Vertical Barrier

4

75

Figure 5.7b

VB_P19

Lam Tai East Road

Vertical Barrier

3

30

Figure 5.7b

VB_P20

Lam Tai East Road

Vertical Barrier

3

25

Figure 5.7b

Stage 3 and 4

VB_E01

TSWW Interchange

Vertical Barrier

5

145

Figure 5.7a

VB_E02

TSWW Interchange

Vertical Barrier

4

75

Figure 5.7a

VB_E07

Proposed Road L13

Vertical Barrier

4

40

Figure 5.7a

VB_E09

Proposed Road D1

Vertical Barrier

3

100

Figure 5.7a

VB_E21

Proposed Road L15

Vertical Barrier

3

35

Figure 5.7a

VB_E22

Proposed Road L15

Vertical Barrier

2

100

Figure 5.7a

VB_E46

Proposed Road D1

Vertical Barrier

4

25

Figure 5.7a

VB_E51

Proposed Road L15

Vertical Barrier

2

25

Figure 5.7b

VB_E52

TSWW Interchange

Vertical Barrier

3

80

Figure 5.7a

VB_P01

Proposed Road L15

Vertical Barrier

3

25

Figure 5.7a

VB_P02

Proposed Road D1

Vertical Barrier

5

220

Figure 5.7a

VB_P05

Proposed Road D1

Vertical Barrier

4

100

Figure 5.7a

VB_P06

Proposed Road L15

Vertical Barrier

4

40

Figure 5.7a

VB_P07

Proposed Road D2

Vertical Barrier

3

45

Figure 5.7c

VB_P08

Proposed Road D2

Vertical Barrier

3

45

Figure 5.7c

VB_P09

Proposed Road D1

Vertical Barrier

5

75

Figure 5.7c

VB_P10

Proposed Road D1

Vertical Barrier

5

195

Figure 5.7c

VB_P11

Proposed Road D1

Vertical Barrier

3

80

Figure 5.7c

VB_P12

Proposed Road L6

Vertical Barrier

3

25

Figure 5.7c

VB_P23

Proposed Road L20

Vertical Barrier

3

30

Figure 5.7a

VB_P26

Proposed Road L20

Vertical Barrier

2

35

Figure 5.7a

VB_P29

Proposed Road D1

Vertical Barrier

6

90

Figure 5.7c

CB_P05

Proposed Road L20

Cantilevered Barrier

5+3m at 45o

40

Figure 5.7a

CB_P06

Proposed Road D1

Cantilevered Barrier

5+3m at 45o

95

Figure 5.7c

CB_P07

Proposed Road D1

Cantilevered Barrier

5+3m at 45o

55

Figure 5.7c

CB_P08

Proposed Road D1

Cantilevered Barrier

5+3m at 45o

90

Figure 5.7c

CB_P09

Proposed Road D1

Cantilevered Barrier

5+3m at 45o

50

Figure 5.7c

CB_P11

Proposed Road L20

Cantilevered Barrier

5+3m at 45o

40

Figure 5.7a

CB_P18

Proposed Road L6

Cantilevered Barrier

5+3m at 45o

45

Figure 5.7c

CB_P19

Proposed Road L6

Cantilevered Barrier

5+3m at 45o

40

Figure 5.7c

CB_P20

Proposed Road L6

Cantilevered Barrier

5+3m at 45o

50

Figure 5.7c

Note:

[1] Noise barrier ID with prefix E indicates barrier required to protect existing NSRs and prefix P indicated barrier required to protect planned NSRs.

[2] VB_E05 is located on the retained wall of the depressed road. The height of this vertical barrier shall be incorporated with the retained wall such that the overall height of the retained wall and the vertical barrier is 6m from the road surface.

[3] The provision of noise barrier should be constructed and maintained by responsible parties, i.e. CEDD and Highways Department respectively.

Table 5.6.4 Extents and locations of proposed enclosures

Enclosure ID

Location

Enclosure Type[1]

Approximate Length, m

Figure Reference

Stage 1

SE04

Yuen Long Nullah - Kung Um Road

Semi-enclosure

70

Figure 5.7b

SE05

Yuen Long Nullah - Kung Um Road

Semi-enclosure

30

Figure 5.7b

Stage 2

SE01

Slip Road near TYST Interchange

Semi-enclosure

310

Figure 5.7a

SE02

Slip Road near TYST Interchange

Semi-enclosure

160

Figure 5.7a

SE03

Slip Road near TYST Interchange

Semi-enclosure

255

Figure 5.7a

FE01

TYST Interchange

Full enclosure

180

Figure 5.7a

FE02

TYST Interchange

Full enclosure

175

Figure 5.7a

FE03

TYST Interchange

Full enclosure

195

Figure 5.7a

FE04

TYST Interchange

Full enclosure

180

Figure 5.7a

Note:

[1] 6m tall enclosure are assumed in the road traffic noise assessment for conservative purpose.

[2] The provision of enclosures should be constructed and maintained by responsible parties, i.e. CEDD and Highways Department respectively.

[3] All full enclosures and semi-enclosures are proposed to protect existing NSRs.


Table 5.6.5 Locations of proposed alternative building orientation

Site ID

NSR Description

Figure Reference

Stage 2

E2.1

Planned Primary School

Figure 5.7c

E2.3

Planned Primary School

Figure 5.7c

Stage 3 and 4

E3.1

Planned Primary School

Figure 5.7c

E3.3

Planned Primary School

Figure 5.7c

Mitigated Noise Levels for Existing NSRs

5.6.3.4                With the implementation of proposed mitigation measures in Table 5.6.2, Table 5.6.3, Table 5.6.4 and Table 5.6.5, the predicted mitigated road traffic noise levels at the representative existing NSRs within and outside the PDA, and the major noise source causing exceedance on these existing NSRs are presented in Table 5.6.6.

 


Table 5.6.6a   Summary of the predicted road traffic noise impact at existing NSRs under mitigated scenario (Year 2027)

NSR

NAP ID[1,2]

Description

Uses[3]

Noise Criterion,

L10 (1 hr), dB(A)

Predicted Mitigated Overall Noise Level,

(L10 (1 hr), dB(A))[4]

Major Noise Source causing exceedance

Existing NSR (within PDA)

E1_PV

E1_PV_R01 to E1_PV_R05

Park Villa

R

70

46 - 71

YLH

E1_TYST

E1_TYST_R01 to E1_TYST_R14, E1_TYST_R20 to E1_TYST_R23, E1_TYST_R31 to E1_TYST_R38

Tong Yan San Tsuen

R

70

46 - 71

Sha Tseng Road and TYST Road (existing section)

E2_MKTT

E2_MKTT_R01

Muk Kiu Tau Tsuen

R

70

71

Kung Um Road (existing section)

Existing NSR (outside PDA)

E4_CFG

E4_CFG_R01 to E4_CFG_R02

Chun Fai Garden

R

70

67 - 71

Kung Um Road (existing section)

E4_GM

E4_GM_R01

Garden Maple

R

70

71 - 75

Shap Pat Heung Road

E4_HG

E4_HG_R01

Hoover Garden

R

70

75

YLH

E4_HYTT

E4_HYTT_R01

Ha Yau Tin Tsuen

R

70

70 - 75

YLH

E4_JC

E4_JC_R01

Jasper Court

R

70

69 - 74

YLH

E4_KMYLS

E4_KMYLS_E01

Kwong Ming Ying Loi School

E

65

70 - 71

YLH

E4_KTST

E4_KTST_R01 to E4_KTST_R02

Kong Tau San Tsuen

R

70

75

YLH

E4_LA

E4_LA_E01

Lutheran Academy

E

65

66 - 72

YLH

E4_LFM

E4_LFM_R01

Lung Fai Mansion

R

70

72

Shap Pat Heung Road

E4_LG

E4_LG_R01 to E4_LG_R02

La Grove

R

70

68 - 78

Shap Pat Heung Road

E4_LTT

E4_LTT_R01 to E4_LTT_R28

Lung Tin Tsuen

R

70

46 - 77

Shap Pat Heung Road

E4_OHP

E4_OHP_R01 to E4_OHP_R02

One Hyde Park

R

70

73 - 74

Kung Um Road (existing section)

E4_PHY

E4_PHY_R01 to E4_PHY_R02

Pitt Hwa Yuen

R

70

60 - 75

Kung Um Road (existing section)

E4_PS

E4_PS_R01 to E4_PS_R03

Park Signature

R

70

66 - 73

Shap Pat Heung Road

E4_PST

E4_PST_R01 to E4_PST_R20

Pak Sha Tsuen

R

70

59 - 73

Kung Um Road (existing section)

E4_PSV

E4_PSV_R01 to E4_PSV_R02

Parkside Villa

R

70

68 - 74

Long Tin Road

E4_RP

E4_RP_R01 to E4_RP_R02

Regent's Park

R

70

59 - 72

Kung Um Road (existing section)

E4_SCST

E4_SCST_R01 to E4_SCST_R02

Sham Chung San Tsuen

R

70

67 - 72

YLH

E4_SCT

E4_SCT_R01 to E4_SCT_R03

Sham Chung Tsuen

R

70

63 - 72

YLH

E4_SG

E4_SG_R01 to E4_SG_R02

Scenic Gardens

R

70

61 - 75

Long Tin Road

E4_SMG

E4_SMG_R01 to E4_SMG_R04

Sun Mei Garden

R

70

76 - 78

Kung Um Road (existing section)

E4_SV

E4_SV_R01

Sereno Verde

R

70

68 - 73

YLH

E4_SYTT

E4_SYTT_R01

Sheung Yau Tin Tsuen

R

70

78

YLH

E4_TKLT

E4_TKLT_R01 to E4_TKLT_R06

Tai Kei Leng Tsuen

R

70

70 - 78

Tai Shu Ha Rd

E4_TKT

E4_TKT_R01 to E4_TKT_R03

Tan Kwai Tsuen

R

70

66 - 73

YLH

E4_TLT

E4_TLT_R01 to E4_TLT_R18

Tin Liu Tsuen

R

70

57 - 78

Kung Um Road (existing section)

E4_TR

E4_TR_R01

The Reach

R

70

72 - 75

YLH

E4_UT

E4_UT_R01 to E4_UT_R06

Uptown

R

70

74 - 80

Hung Tin Road

E4_YH

E4_YH_R01 to E4_YH_R02

Yoho Town

R

70

71 - 74

YLH and Castle Peak Road

E4_YHM

E4_YHM_R01

Yoho Midtown

R

70

75 - 77

YLH and Castle Peak Road

Note:

[1] The assessment will only include NSRs which rely on opened windows for ventilation.

[2] The first layer of NSRs within 300m from the boundary of the planned road works and the committed/ planned NSRs of the Project is included.

[3] R – Residential Premises; E – Educational Institutions.

[4] Noise levels presented are rounded to the nearest dB(A).

 

Table 5.6.6b   Summary of the predicted road traffic noise impact at existing NSRs under mitigated scenario (Year 2033)

NSR

NAP ID[1,2]

Description

Uses[3]

Noise Criterion,

L10 (1 hr), dB(A)

Predicted Mitigated Overall Noise Level,

(L10 (1 hr), dB(A))[4]

Major Noise Source causing exceedance

Existing NSR (within PDA)

E1_ELD

E1_ELD_R01

Eldorado

R

70

74 - 75

Sha Tseng Road and TYST Road (existing section)

E1_FLG

E1_FLG_R01

Fu Lai Garden

R

70

67 - 73

Sha Tseng Road and TYST Road (existing section)

E1_GR

E1_GR_R01

Greenville Residence

R

70

74 - 75

Sha Tseng Road and TYST Road (existing section)

E1_KLG

E1_KLG_R01

Kam Lai Garden

R

70

69 - 73

Sha Tseng Road and TYST Road (existing section)

E1_KV

E1_KV_R01 to E1_KV_R02

Kisland Villa

R

70

64 - 75

Sha Tseng Road and TYST Road (existing section)

E1_MG

E1_MG_R01

Marbella Gardens

R

70

74 - 76

Sha Tseng Road and TYST Road (existing section)

E1_PH

E1_PH_R01

The Parkhill

R

70

72 - 73

Sha Tseng Road and TYST Road (existing section)

E1_RLS

E1_RLS_R01 to E1_RLS_R04

Recours La Serre

R

70

47 - 68

-

E1_SHT

E1_SHT_R01 to E1_SHT_R07

Shan Ha Tsuen

R

70

60 - 67

-

E1_TYST

E1_TYST_R01 to E1_TYST_R14, E1_TYST_R20 to E1_TYST_R23, E1_TYST_R31 to E1_TYST_R38

Tong Yan San Tsuen

R

70

47 - 76

Sha Tseng Road and TYST Road (existing section)

E1_WG

E1_WG_R01

Winsor Garden

R

70

74 - 75

Sha Tseng Road and TYST Road (existing section)

E2_TLY

E2_TLY_R01 to E2_TLY_R02

Tin Lung Yuen

R

70

64 - 69

-

Existing NSR (outside PDA)

E4_GM

E4_GM_R01

Garden Maple

R

70

71 - 75

Shap Pat Heung Road

E4_HG

E4_HG_R01

Hoover Garden

R

70

74 - 75

YLH

E4_HYTT

E4_HYTT_R01

Ha Yau Tin Tsuen

R

70

69 - 73

YLH

E4_JC

E4_JC_R01

Jasper Court

R

70

67 - 73

YLH

E4_KMYLS

E4_KMYLS_E01

Kwong Ming Ying Loi School

E

65

69 - 70

YLH

E4_KTST

E4_KTST_R01 to E4_KTST_R02

Kong Tau San Tsuen

R

70

75

YLH

E4_LA

E4_LA_E01

Lutheran Academy

E

65

65 - 72

YLH

E4_LFM

E4_LFM_R01

Lung Fai Mansion

R

70

72

Shap Pat Heung Road

E4_LG

E4_LG_R01 to E4_LG_R02

La Grove

R

70

67 - 78

Shap Pat Heung Road

E4_LTT

E4_LTT_R01 to E4_LTT_R28

Lung Tin Tsuen

R

70

48 - 77

Shap Pat Heung Road

E4_PHY

E4_PHY_R01 to E4_PHY_R02

Pitt Hwa Yuen

R

70

56 - 68

-

E4_PS

E4_PS_R01 to E4_PS_R03

Park Signature

R

70

66 - 74

Shap Pat Heung Road

E4_PSV

E4_PSV_R01 to E4_PSV_R02

Parkside Villa

R

70

63 - 69

-

E4_SCST

E4_SCST_R01 to E4_SCST_R02

Sham Chung San Tsuen

R

70

68 - 71

YLH

E4_SCT

E4_SCT_R01 to E4_SCT_R03

Sham Chung Tsuen

R

70

63 - 73

YLH

E4_SG

E4_SG_R01 to E4_SG_R02

Scenic Gardens

R

70

52 - 72

Long Tin Road

E4_SHT

E4_SHT_R01 to E4_SHT_R07

Shan Ha Tsuen

R

70

54 - 70

-

E4_SMG

E4_SMG_R01 to E4_SMG_R04

Sun Mei Garden

R

70

69 - 70

-

E4_SV

E4_SV_R01

Sereno Verde

R

70

64 - 72

YLH

E4_SYTT

E4_SYTT_R01

Sheung Yau Tin Tsuen

R

70

77

YLH

E4_TKLT

E4_TKLT_R01 to E4_TKLT_R06

Tai Kei Leng Tsuen

R

70

62 - 72

Tai Shu Ha Rd

E4_TKT

E4_TKT_R01 to E4_TKT_R03

Tan Kwai Tsuen

R

70

66 - 73

YLH

E4_TLT

E4_TLT_R01 to E4_TLT_R18

Tin Liu Tsuen

R

70

52 - 71

Kung Um Road (existing section)

E4_TR

E4_TR_R01

The Reach

R

70

64 - 75

YLH

E4_UT

E4_UT_R01 to E4_UT_R06

Uptown

R

70

73 – 79

Hung Tin Road

E4_YH

E4_YH_R01 to E4_YH_R02

Yoho Town

R

70

70 - 74

YLH and Castle Peak Road

E4_YHM

E4_YHM_R01

Yoho Midtown

R

70

76 - 77

YLH and Castle Peak Road

Note:

[1] The assessment will only include NSRs which rely on opened windows for ventilation. 

[2] The first layer of NSRs within 300m from the boundary of the planned road works and the committed/ planned NSRs of the Project is included.

[3] R – Residential Premises; E – Educational Institutions.

[4] Noise levels presented are rounded to the nearest dB(A).

 

Table 5.6.6c   Summary of the predicted road traffic noise impact at existing NSRs under mitigated scenario (Year 2053)

NSR

NAP ID[1,2]

Description

Uses[3]

Noise Criterion, L10 (1 hr), dB(A)

Predicted Mitigated Overall Noise Level, (L10 (1 hr), dB(A))[4]

Major Noise Source causing exceedance

Existing NSR (within PDA)

E1_ELD

E1_ELD_R01

Eldorado

R

70

75

Sha Tseng Road and TYST Road (existing section)

E1_FLG

E1_FLG_R01

Fu Lai Garden

R

70

69 - 74

Sha Tseng Road and TYST Road (existing section)

E1_KLG

E1_KLG_R01

Kam Lai Garden

R

70

69 - 76

Sha Tseng Road and TYST Road (existing section)

E1_KV

E1_KV_R01 to E1_KV_R02

Kisland Villa

R

70

72 - 73

Sha Tseng Road and TYST Road (existing section)

E1_LHT

E1_LHT_R01

Lam Hau Tsuen

R

70

70

-

E1_PH

E1_PH_R01

The Parkhill

R

70

68 - 69

-

E1_PV

E1_PV_R01 to E1_PV_R05

Park Villa

R

70

52 - 70

-

E1_RLS

E1_RLS_R01 to E1_RLS_R04

Recours La Serre

R

70

62 - 71

Sha Tseng Road and TYST Road

E1_SHT

E1_SHT_R01 to E1_SHT_R07

Shan Ha Tsuen

R

70

56 - 70

-

E1_TYST

E1_TYST_R01 to E1_TYST_R14, E1_TYST_R20 to E1_TYST_R23

Tong Yan San Tsuen

R

70

56 - 76

Sha Tseng Road and TYST Road (existing section)

E1_WG

E1_WG_R01

Winsor Garden

R

70

70 - 72

Sha Tseng Road and TYST Road (existing section)

E2_MKTT

E2_MKTT_R01

Muk Kiu Tau Tsuen

R

70

69

-

E2_TLY

E2_TLY_R01 to E2_TLY_R02

Tin Lung Yuen

R

70

65 - 69

-

Existing NSR (outside PDA)

E4_CFG

E4_CFG_R01 to E4_CFG_R02

Chun Fai Garden

R

70

66 - 70

-

E4_CPG

E4_CPG_R01

Chung Pak Garden

R

70

68

-

E4_GM

E4_GM_R01

Garden Maple

R

70

72 - 76

Shap Pat Heung Road

E4_HG

E4_HG_R01

Hoover Garden

R

70

75 - 76

YLH

E4_HYTT

E4_HYTT_R01

Ha Yau Tin Tsuen

R

70

70 - 75

YLH

E4_JC

E4_JC_R01

Jasper Court

R

70

66 - 73

YLH

E4_KMYLS

E4_KMYLS_E01

Kwong Ming Ying Loi School

E

65

70 - 71

YLH

E4_KTST

E4_KTST_R01 to E4_KTST_R02

Kong Tau San Tsuen

R

70

76

YLH

E4_LA

E4_LA_E01

Lutheran Academy

E

65

65 - 73

YLH

E4_LFM

E4_LFM_R01

Lung Fai Mansion

R

70

73

Shap Pat Heung Road

E4_LG

E4_LG_R01 to E4_LG_R02

La Grove

R

70

67 - 78

Shap Pat Heung Road

E4_LHT

E4_LHT_R01 to E4_LHT_R05

Lam Hau Tsuen

R

70

63 - 70

-

E4_LTT

E4_LTT_R01 to E4_LTT_R28

Lung Tin Tsuen

R

70

49 - 78

Shap Pat Heung Road

E4_MKT

E4_MKT_R01 to E4_MKT_R05

Muk Kiu Tau Tsuen

R

70

63 - 69

-

E4_OHP

E4_OHP_R01 to E4_OHP_R02

One Hyde Park

R

70

70

-

E4_PHY

E4_PHY_R01 to E4_PHY_R02

Pitt Hwa Yuen

R

70

57 - 69

-

E4_PS

E4_PS_R01 to E4_PS_R03

Park Signature

R

70

67 - 75

Shap Pat Heung Road

E4_PST

E4_PST_R01 to E4_PST_R20

Pak Sha Tsuen

R

70

56 - 70

-

E4_PSV

E4_PSV_R01 to E4_PSV_R02

Parkside Villa

R

70

66 - 70

-

E4_RP

E4_RP_R01 to E4_RP_R02

Regent's Park

R

70

56 - 69

-

E4_SCST

E4_SCST_R01 to E4_SCST_R02

Sham Chung San Tsuen

R

70

68 - 72

YLH

E4_SCT

E4_SCT_R01 to E4_SCT_R03

Sham Chung Tsuen

R

70

64 - 74

YLH

E4_SG

E4_SG_R01 to E4_SG_R02

Scenic Gardens

R

70

61 - 74

Long Tin Road

E4_SHT

E4_SHT_R01 to E4_SHT_R07

Shan Ha Tsuen

R

70

55 - 70

-

E4_SMG

E4_SMG_R01 to E4_SMG_R04

Sun Mei Garden

R

70

70 - 71

Kung Um Road (existing section)

E4_SV

E4_SV_R01

Sereno Verde

R

70

65 - 73

YLH

E4_SYTT

E4_SYTT_R01

Sheung Yau Tin Tsuen

R

70

78

YLH

E4_TKLT

E4_TKLT_R01 to E4_TKLT_R06

Tai Kei Leng Tsuen

R

70

63 - 72

Tai Shu Ha Road

E4_TKT

E4_TKT_R01 to E4_TKT_R03

Tan Kwai Tsuen

R

70

67 - 74

YLH

E4_TLT

E4_TLT_R01 to E4_TLT_R18

Tin Liu Tsuen

R

70

54 - 71

Kung Um Road (existing section)

E4_TR

E4_TR_R01

The Reach

R

70

65 - 76

YLH

E4_TTT

E4_TTT_R01 to E4_TTT_R03

Tai Tao Tsuen

R

70

63 - 67

-

E4_UT

E4_UT_R01 to E4_UT_R06

Uptown

R

70

72 - 81

Hung Tin Road

E4_YH

E4_YH_R01 to E4_YH_R02

Yoho Town

R

70

71 - 75

YLH and Castle Peak Road

E4_YHM

E4_YHM_R01

Yoho Midtown

R

70

76 - 78

YLH and Castle Peak Road

Note:

[1] The assessment will only include NSRs which rely on opened windows for ventilation. 

[2] The first layer of NSRs within 300m from the boundary of the planned road works and the committed and planned NSRs of the Project is included.

[3] R – Residential Premises; E – Educational Institutions.

[4] Noise levels presented are rounded to the nearest dB(A).


5.6.3.5                As shown in Table 5.6.6, the exceedance at the representative existing NSRs would be due to existing roads.  All practicable direct mitigation measures on project roads have been considered such that the noise contribution due to project roads is insignificant.  As discussed in Section 5.6.1, a review for NSRs along existing roads is conducted to assess whether the traffic noise impact due to the Project would be significant.  Appendix 5.16e shows that significant road traffic noise impact from the Project would only be predicted on TYST Road (existing section) and Sha Tseng Road. Implementation of mitigation measures on these existing roads under this Project are proposed to alleviate the road traffic noise impact.

Sha Tseng Road and TYST Road (existing section)

5.6.3.6                Construction of noise barrier along Sha Tseng Road and TYST Road (existing section) is considered not feasible due to insufficient space and a number of existing ingress and egress. LNRS is therefore proposed to alleviate the road traffic noise impacts at these NSRs. Different materials for LNRS are being reviewed and tested by the Government for application in Hong Kong. Environmental reviews will be conducted at the later design stage to review the proposed noise mitigation measures taking into account the latest design standard at that time for the application of the LNRS materials.

Shap Pat Heung Road

5.6.3.7                With the existing vertical noise barrier (2m high) and cantilevered noise barrier (2m high vertical with 1m cantilevered arm) along east bound of Shap Pat Heung Road, the road traffic noise levels of some existing NSRs would exceed the noise criterion of 70dB(A). However, construction of noise barrier along this section of the existing Shap Pat Heung Road is considered not feasible due to insufficient space. Resurfacing with LNRS material may be considered to be implemented where practicable by the Government.

Kung Um Road (existing section)

5.6.3.8                Currently, along the Kung Um Road (existing section), there are low-rise villages such as Tin Liu Tsuen, etc., separated at about 5m with ingress and egress.  In view of such short separation to the nearby NSRs, the road traffic noise impacts at these existing NSRs will still exceed the noise criterion of 70dB(A).  In view of the existing ingress, egress and limited space for various villages, all at-source mitigation measures have been provided as far as practicable to reduce the road traffic noise impacts for NSRs along Kung Um Road.

YLH and Castle Peak Road

5.6.3.9                The road traffic noise levels of some existing NSRs would exceed the noise criterion of 70dB(A). LNRS has been already paved along YLH and with existing 4m noise barriers near Yoho Town and Yoho Midtown.  However, construction of noise barrier along this section of the existing YLH and Castle Peak Road is considered not feasible due to insufficient structural capacity and insufficient space. Resurfacing with LNRS material may be considered to be implemented where practicable by the Government.

Hung Tin Road

5.6.3.10            The road traffic noise levels of some existing NSRs would exceed the noise criterion of 70dB(A).  Further refinement of noise barrier along the concerned road section may be considered to be implemented where practicable by the Government.

Long Tin Road

5.6.3.11            The road traffic noise levels of some existing NSRs would exceed the noise criterion of 70dB(A). The existing TYST Interchange will be re-constructed and noise mitigation measures, such as semi-enclosures, roadside barriers and LNRS, have been proposed as far as practicable.

Tai Shu Ha Road

5.6.3.12            The road traffic noise levels of some existing NSRs would exceed the noise criterion of 70dB(A).  In addition, construction of noise barrier along this section of the existing Tai Shu Ha Road is considered not feasible due to insufficient space. Resurfacing with LNRS material may be considered to be implemented where practicable by the Government.

Mitigated Noise Levels for Planned NSRs

5.6.3.13            With the implementation of proposed mitigation measures in Table 5.6.2, Table 5.6.3, Table 5.6.4 and Table 5.6.5, the predicted mitigated road traffic noise levels at the representative planned NSRs within the PDA are presented in Table 5.6.7.


Table 5.6.7a   Summary of the predicted road traffic noise impact at planned NSRs under mitigated scenario (Year 2027)

NSR

NAP ID[1,2]

Description

Uses[3]

Noise Criterion,

L10 (1 hr), dB(A)

Predicted Mitigated Overall Noise Level,

(L10 (1 hr), dB(A))[4]

Require Additional Mitigation Measures

P_R2.2

P_R2.2_R01 to P_R2.2_R20

Public housing

R

70

51 - 74

Y

P_LBIH

P_LBIH_R01 to P_LBIH_R02

Planned Public Housing Development in Long Bin

R

70

75 - 81

Y

Note:

[1] The assessment will only include NSRs which rely on opened windows for ventilation. 

[2] The first layer of NSRs within 300m from the boundary of the planned road works and the committed and planned NSRs of the Project is included.

[3] R – Residential Premises. The land uses of the planned NSRs within the PDA are identified based on the RODP. The land uses of P_LBIH is identified based on DC Discussion Paper “Consultation on the proposed amendments to the approved TYST Outline Zoning Plan No. S/YL-TYST/10”.

[4] Noise levels presented are rounded to the nearest dB(A).

Table 5.6.7b   Summary of the predicted road traffic noise impact at planned NSRs under mitigated scenario (Year 2033)

NSR

NAP ID[1,2]

Description

Uses[3]

Noise Criterion,

L10 (1 hr), dB(A)

Predicted Mitigated Overall Noise Level,

(L10 (1 hr), dB(A))[4]

Require Additional Mitigation Measures

P_E2.1[5]

P_E2.1_E01 to P_E2.1_E07

Planned primary school

E

65

55 - 63

N

P_E2.3[5]

P_E2.3_E01 to P_E2.3_E06

Planned primary school

E

65

58 - 64

N

P_R2.1a

P_R2.1a_R01 to P_R2.1a_R05

Private housing

R

70

52 - 72

Y

P_R2.1b

P_R2.1b_R01 to P_R2.1b_R03

Public housing

R

70

53 - 70

N

P_R2.2

P_R2.2_R01 to P_R2.2_R20

Public housing

R

70

52 - 74

Y

P_R2.3

P_R2.3_R01 to P_R2.3_R08

Public housing

R

70

59 - 70

N

P_R2.4

P_R2.4_R01 to P_R2.4_R14

Public housing

R

70

60 - 69

N

P_VR1.1

P_VR1.1_R01 to P_VR1.1_R02

Village rehousing

R

70

64 - 67

N

P_VR2.1

P_VR2.1_R01 to P_VR2.1_R02

Village rehousing

R

70

69 - 70

N

P_LBIH

P_LBIH_R01 to P_LBIH_R02

Planned Public Housing Development in Long Bin

R

70

62 - 77

Y

Note:

[1] The assessment will only include NSRs which rely on opened windows for ventilation. 

[2] The first layer of NSRs within 300m from the boundary of the planned road works and the committed and planned NSRs of the Project is included.

[3] R – Residential Premises; E – Educational Institutions. The land uses of the planned NSRs within the PDA are identified based on the RODP. The land uses of P_LBIH is identified based on DC Discussion Paper “Consultation on the proposed amendments to the approved TYST Outline Zoning Plan No. S/YL-TYST/10”.

[4] Noise levels presented are rounded to the nearest dB(A).

[5] The NAPs are assigned based on alternative building orientation as shown in Figure 5.7c.

 

Table 5.6.7c   Summary of the predicted road traffic noise impact at planned NSRs under mitigated scenario (Year 2053)

NSR

NAP ID[1,2]

Description

Uses[3]

Noise Criterion,

L10 (1 hr), dB(A)

Predicted Mitigated Overall Noise Level,

(L10 (1 hr), dB(A))[4]

Require Additional Mitigation Measures

P_E2.1[6]

P_E2.1_E01 to P_E2.1_E07

Planned primary school

E

65

56 - 65

N

P_E2.3[6]

P_E2.3_E01 to P_E2.3_E06

Planned primary school

E

65

61 - 64

N

P_E2.4

P_E2.4_E01 to P_E2.4_E04

Planned primary school

E

65

61 - 64

N

P_E3.1[6]

P_E3.1_E01 to P_E3.1_E04

Planned primary school

E

65

53 - 61

N

P_E3.2

P_E3.2_E01 to P_E3.2_E03

Planned primary school

E

65

61 - 64

N

P_E3.3

P_E3.3_E01 to P_E3.3_E03

Planned primary school

E

65

61 - 64

N

P_G2.4

P_G2.4_R01

Married quarters

R

70

69 - 70

N

P_R1.3

P_R1.3_R01 to P_R1.3_R09

Private housing

R

70

65 - 70

N

P_R1.4

P_R1.4_R01 to P_R1.4_R09

Private housing

R

70

64 - 70

N

P_R1.5

P_R1.5_R01 to P_R1.5_R03

Private housing

R

70

68 - 70

N

P_R1.6

P_R1.6_R01 to P_R1.6_R02

Private housing

R

70

69 - 70

N

P_R1.7

P_R1.7_R01 to P_R1.7_R08

Private housing

R

70

62 - 70

N

P_R1.8

P_R1.8_R01 to P_R1.8_R08

Private housing

R

70

69 - 70

N

P_R1.10

P_R1.10_R01 to P_R1.10_R09

Private housing

R

70

54 - 70

N

P_R1.12

P_R1.12_R01 to P_R1.12_R06

Private housing

R

70

66 - 70

N

P_R1.13

P_R1.13_R01 to P_R1.13_R04

Private housing

R

70

62 - 70

N

P_R1.14

P_R1.14_R01 to P_R1.14_R05

Private housing

R

70

60 - 70

N

P_R1.16

P_R1.16_R01 to P_R1.16_R07

Private housing

R

70

58 - 70

N

P_R2.1a

P_R2.1a_R01 to P_R2.1a_R05

Private housing

R

70

58 - 73

Y

P_R2.1b

P_R2.1b_R01 to P_R2.1b_R03

Public housing

R

70

60 - 70

N

P_R2.2

P_R2.2_R01 to P_R2.2_R20

Public housing

R

70

60 - 75

Y

P_R2.3

P_R2.3_R01 to P_R2.3_R08

Public housing

R

70

64 - 70

N

P_R2.4

P_R2.4_R01 to P_R2.4_R14

Public housing

R

70

64 - 70

N

P_R2.6a

P_R2.6a_R01 to P_R2.6a_R07

Private housing

R

70

64 - 70

N

P_R2.6c

P_R2.6c_R01 to P_R2.6c_R04

Private housing

R

70

47 - 70

N

P_R2.6d

P_R2.6d_R01 to P_R2.6d_R03

Private housing

R

70

52 - 70

N

P_R2.7

P_R2.7_R01 to P_R2.7_R04

Private housing

R

70

61 - 69

N

P_R2.8

P_R2.8_R01 to P_R2.8_R06

Public housing

R

70

65 - 70

N

P_R3.1b

P_R3.1b_R01 to P_R3.1b_R03

Private housing

R

70

64 - 70

N

P_R3.1c

P_R3.1c_R01 to P_R3.1c_R02

Private housing

R

70

66 - 70

N

P_R3.1e

P_R3.1e_R01 to P_R3.1e_R02

Private housing

R

70

67 - 70

N

P_R3.2

P_R3.2_R01 to P_R3.2_R04

Private housing

R

70

64 - 69

N

P_R3.4a

P_R3.4a_R01 to P_R3.4a_R04

Private housing

R

70

60 - 70

N

P_R3.4b

P_R3.4b_R01 to P_R3.4b_R04

Private housing

R

70

63 - 70

N

P_R3.5a

P_R3.5a_R01 to P_R3.5a_R03

Private housing

R

70

63 - 70

N

P_OU1.1

P_OU1.1_R01 to P_OU1.1_R09

Private housing

R

70

63 - 72

Y

P_OU1.2a

P_OU1.2a_R01 to P_OU1.2a_R10

Private housing

R

70

67 - 75

Y

P_OU1.3

P_OU1.3_R01 to P_OU1.3_R05

Private housing

R

70

64 - 70

N

P_VR1.1

P_VR1.1_R01 to P_VR1.1_R02

Village rehousing

R

70

64 - 70

N

P_VR2.1

P_VR2.1_R01 to P_VR2.1_R02

Village rehousing

R

70

70

N

P_LBIH[5]

P_LBIH_R01 to P_LBIH_R02

Planned Public Housing Development in Long Bin

R

70

62 - 77

Y

Note:

[1] The assessment will only include NSRs which rely on opened windows for ventilation. 

[2] The first layer of NSRs within 300m from the boundary of the planned road works and the committed and planned NSRs of the Project is included.

[3] R – Residential Premises; E – Educational Institutions. The land uses of the planned NSRs within the PDA are identified based on the RODP. The land uses of P_LBIH is identified based on DC Discussion Paper “Consultation on the proposed amendments to the approved TYST Outline Zoning Plan No. S/YL-TYST/10”.

[4] Noise levels presented are rounded to the nearest dB(A).

[5] A separate Environmental Assessment Study (EAS) will be conducted in the detailed design stage by HKHA to address environmental impacts according to HKPSG and to comply with relevant criteria.

[6] The NAPs are assigned based on alternative building orientation as shown in Figure 5.7c.


5.6.3.14            Combination of proposed mitigation measures are formulated to protect both planned and existing NSRs from road traffic noise impact. The noise level reduction by these mitigation measures are illustrated in Table 5.6.8.

Table 5.6.8 Noise level reduction by combination of proposed mitigation measures

Intended NSRs to be Protected

Combination of Proposed Mitigation Measures

Noise Level Reduction, L10 (1 hr), dB(A)

Existing NSRs

E1_LHT

FE01, FE02, FE03, FE04, VB_E21, LNRS17, LNRS18, LNRS19

3

E1_PV

CB_E01, VB_E03, VB_E04, LNRS02, LNRS03, LNRS04

3 - 11

E1_RLS

VB_E07, LNRS04, LNRS 50

2 - 9

E1_SHT

VB_E20, VB_E46, VB_E54, VB_E55, LNRS21, LNRS22

5 - 6

E1_TYST

SE03, CB_E25, VB_E05, VB_E08, VB_E06, VB_E10, VB_E11, VB_E12, VB_E53, LNRS02, LNRS05, LNRS06, LNRS08, LNRS10, LNRS47, LNRS50

1 - 18

E2_MKTT

VB_E23, VB_E34, LNRS04, LNRS33

4

E2_TLY

CB_E02, CB_E19, LNRS37, LNRS38

5 - 8

E4_CFG

VB_E32, VB_E33, LNRS33

3

E4_CPG

VB_E41, LNRS33

3

E4_GM

SE04, SE05, CB_E04, LNRS32, LNRS45

1

E4_JC

SE01, VB_E16, LNRS06, LNRS07, LNRS08, LNRS09, LNRS10, LNRS12, LNRS13, LNRS14, LNRS15, LNRS16, LNRS47

4 - 10

E4_LFM

SE04, SE05, CB_E04, LNRS32, LNRS45

1

E4_LG

SE04, SE05, CB_E04, CB_E05, LNRS32, LNRS45

1 - 7

E4_LHT

VB_E13, VB_E15, VB_E22, VB_E51

4 - 8

E4_LTT

CB_E03, CB_E04, CB_E05, CB_E26, CB_E27, VB_E25, LNRS 32, LNRS45

1 - 12

E4_MKT

LNRS33

2

E4_OHP

LNRS33

1

E4_PHY

VB_E26, VB_E28, VB_E30, LNRS33

4 - 9

E4_PS

SE04, SE05, CB_E04, CB_E05, LNRS32, LNRS45

1 - 6

E4_PST

VB_E35, VB_E36, VB_E37, VB_E38, VB_E39, VB_E40, VB_E41, VB_E56, LNRS33

2 - 11

E4_PSV

SE02, VB_E17, VB_E19, CE_E21, LNRS08, LNRS09, LNRS13, LNRS14, LNRS16

2 - 5

E4_RP

LNRS33

2

E4_SCST

LNRS43

1

E4_SCT

VB_E14, VB_E42, VB_E47, LNRS35, LNRS36, LNRS43

1 - 4

E4_SG

SE02, VB_E17, LNRS09, LNRS13

1

E4_SHT

VB_E09, LNRS21, LNRS22, LNRS27, LNRS28, LNRS29, LNRS30, LNRS31

3 - 8

E4_SMG

LNRS33

3 - 4

E4_SV

CB_E16, CB_E18, VB_E45, VB_E49, LNRS39, LNRS40, LNRS41

2 - 3

E4_TKLT

CB_E16, CB_E18, VB_E48, VB_E45, VB_E49, LNRS39, LNRS40, LNRS41

3 - 16

E4_TLT

CB_E02, CB_E19, CB_E20, CB_E22, VB_E43, VB_E26, VB_E27, VB_E28, VB_E29, VB_E30, VB_E31, NF_E01, NF_E05, NF_E06, LNRS33, LNRS35, LNRS36, LNRS37, LNRS38

4 - 16

E4_TR

VB_E45, LNRS39, LNRS40

1 - 3

E4_TTT

VB_E01, VB_E02, VB_E52, LNRS01

5

E4_UT

VB_E01, VB_E02, VB_E52, LNRS01

1 - 2

Planned NSRs

P_E2.1

Alternative building orientation, LNRS33, LNRS48

3 - 8

P_E2.3

Alternative building orientation, LNRS33, LNRS48

3 - 7

P_E2.4

LNRS33

2

P_E3.1

Alternative building orientation, LNRS33

9 - 13

P_E3.2

LNRS33, LNRS34, LNRS49

2

P_E3.3

Alternative building orientation, LNRS33, LNRS34, LNRS49

5 - 10

P_G2.4

VB_P09, VB_P10, LNRS25, LNRS26

3 - 4

P_OU1.1

FE01, FE02, FE03, FE04, SE03, VB_E11, VB_E12, VB_E13, VB_E18, LNRS08, LNRS10, LNRS11, LNRS12, LNRS20, LNRS47

3 - 10

P_OU1.2a

FE01, FE02, FE03, FE04, VB_P01, VB_E13, VB_E15, LNRS08, LNRS10, LNRS11, LNRS12, LNRS17, LNRS18, LNRS19, LNRS20, LNRS47

1 - 9

P_OU1.3

FE01, FE02, FE03, FE04, VB_P02, LNRS20, LNRS21, LNRS22

4

P_R1.3

VB_P23, LNRS03, LNRS04, LNRS42

2 - 5

P_R1.4

LNRS50

3

P_R1.5

LNRS50

2 - 3

P_R1.6

VB_P05, LNRS03, LNRS42

3

P_R1.7

VB_P26, LNRS03

3

P_R1.8

VB_P02, LNRS03, LNRS21, LNRS22

2 - 5

P_R1.10

VB_P02, LNRS20, LNRS21, LNRS22

7 - 18

P_R1.12

VB_P23, LNRS03, LNRS42

3

P_R1.13

LNRS50

3

P_R1.14

CB_P05, CB_P11, LNRS03, LNRS42

4 - 11

P_R1.16

FE01, FE02, FE03, FE04, VB_E46, VB_P06, VB_E54, LNRS19, LNRS20, LNRS21, LNRS22

4 - 14

P_R2.1a

LNRS27, LNRS28

1 - 3

P_R2.1b

CB_P10, LNRS27, LNRS28, LNRS29

3 - 4

P_R2.2

CB_E02, VB_P17, LNRS27, LNRS28, LNRS29, LNRS37, LNRS38,

1 - 4

P_R2.3

VB_P18, VB_P08, LNRS23, LNRS24, LNRS30, LNRS31

3 - 5

P_R2.4

VB_P19, VB_P20, LNRS23, LNRS24, LNRS30, LNRS31

3 - 4

P_R2.6a

LNRS23, LNRS24, LNRS30, LNRS31

3

P_R2.6c

VB_P07, VB_P08, LNRS21, LNRS22, LNRS25, LNRS26, LNRS30, LNRS31

3

P_R2.6d

VB_P09, LNRS25, LNRS26

3 - 4

P_R2.7

VB_P10, LNRS25, LNRS26

5

P_R2.8

CB_P07, CB_P09, VB_P11, LNRS25, LNRS26

3 - 8

P_R3.1b

CB_P06, CB_P08, VB_P29, LNRS25, LNRS26, LNRS34

3 - 10

P_R3.1c

CB_P08, LNRS34

3

P_R3.1e

LNRS34

2 - 3

P_R3.2

VB_P29, LNRS25, LNRS26

5

P_R3.4a

CB_P20, VB_P12, LNRS34, LNRS49

3 - 14

P_R3.4b

LNRS34, LNRS49

3

P_R3.5a

CB_P18, CB_P19, LNRS25, LNRS26, LNRS34

3 - 12

P_VR1.1

VB_E46, VB_E20, VB_E54, VB_E55, LNRS21, LNRS22

5 - 10

P_VR2.1

LNRS27, LNRS28, LNRS29, LNRS30, LNRS31

2 - 3

P_LBIH

SE01, VB_E16, VB_E17, LNRS07, LNRS08, LNRS09, LNRS10, LNRS11, LNRS12, LNRS13, LNRS14, LNRS15, LNRS16, LNRS47

2 - 19

 

5.6.3.15            As shown in Table 5.6.8, with the recommended at-source mitigation measures in place, some planned residential premises would still exceed the noise criterion by 1 – 5dB(A).

5.6.3.16            After the exhaustion of at-source mitigation measures, at-receiver mitigation measures are proposed to alleviate the road traffic noise impacts:

·           Provision of acoustic windows for some planned public and private housing.

5.6.3.17            Details of the at-receiver mitigation measures proposed at the affected NSRs are summarised in Table 5.6.9.

Table 5.6.9 Proposed at-receiver mitigation measures at planned sites

Site ID

Proposed Additional Mitigation Measures

Uses[1]

Applied to

Figure Reference

R2.1a

Acoustic windows

R

11/F – 30/F

Figure 5.7b

R2.2

Acoustic windows

R

4/F – 34/F

Figure 5.7b

OU1.1

Acoustic windows

R

5/F – 12/F

Figure 5.7a

OU1.2a

Acoustic windows

R

1/F – 12/F

Figure 5.7a

Note:

[1] R – Residential Premises.

5.6.3.18            Appendix 5.16 shows the details of the noise impacts of the NSRs and NAPs at various floor levels under mitigated scenario. It has been demonstrated that the noise impact can be mitigated to an acceptable level by employing a package of mitigation measures including: 1) absorptive vertical barriers and cantilevered noise barriers along some sections of Project Roads and Kung Um Road; 2) LNRS on some road sections; 3) semi-enclosures or full enclosures at primary distributor roads at TYST Interchange and Kung Um Road; 4) nullah features / barriers along some sections of Yuen Long Nullah (Kiu Hing Road); 5) alternative building orientation for some planned schools to alleviate adverse traffic noise impact on the affected NSRs.

5.6.3.19            The proposed at-receiver mitigation measures i.e. the provision of acoustic windows for some planned public and private housing are subject to further study by Hong Kong Housing Authority (HKHA) and future private developers respectively. HKHA and future private developers can further explore alternative options which can achieve corresponding traffic noise reduction during the detailed design stage.

5.6.3.20            There is scope for adoption of alternative noise mitigation measures, for example, by means of alternative layout and design of individual developments at the detailed design stage. Noise impact assessment at the planned residential sites is proposed to be conducted by future developers at the detailed design stage to study whether the future development layout would avoid exposing to excessive road traffic noise levels so as to minimise the scale and extent of the proposed noise mitigation measures such as noise barriers and special building design. The requirement of noise impact assessment would be included in the land lease condition or planning briefs of the residential sites. 

5.6.3.21            In addition, Environmental Assessment Study (EAS) for the planned public housings will be conducted by HKHA in the detailed design stage according to HKPSG to address environment impacts and to comply with relevant criteria.

5.6.3.22            With implementation of the proposed mitigation measures, the total number of dwellings and classrooms that will be benefited is summarized in Table 5.6.9a.

Table 5.6.9a Number of residential dwellings/classrooms benefited under mitigated scenario

Stages

No. of Existing Dwellings

No. of Existing Classrooms

No. of Planned

Dwellings

No. of Planned

Classrooms

Stage 1

250

0

300

0

Stage 2

1000

0

1250

50

Stages 3 and 4

1500

0

5350

150

5.6.3.23            The total number of dwellings and classrooms that will still be exposed to noise impact exceeding the criteria set out in Annex 5 of the EIAO-TM has been summarized in Table 5.6.9b. All direct mitigation measures have been proposed, such that the contribution from the Project Road is not significant (i.e. less than 1.0dB(A)).  All of the  exceedance are due to the existing roads.

Table 5.6.9b Number of residential dwellings/classrooms exposed the respective criteria under mitigated scenario

Stages

No. of Existing Dwellings

No. of Existing Classrooms

No. of Planned

Dwellings

No. of Planned

Classrooms

Stage 1

4100

50

0

0

Stage 2

3350

50

0

0

Stages 3 and 4

3850

50

0

0

5.6.4                  Assessment of Side Effects and Constraints

5.6.4.1                As discussed in Section 10.12, the visual impact of noise mitigation measures will be mitigated by appropriate detailed design to reduce visual bulkiness and incorporate aesthetically pleasing surface treatments to promote visual amenity.

5.6.5                  Evaluation of Constraints on Planned Noise Sensitive Developments / Land Uses

5.6.5.1                The planned use with proposed acoustic windows or alternative building orientation will comply with noise criteria. These at-receiver mitigation measures will not affect the development parameters Therefore, constraints on the planned noise sensitive development/land uses are not anticipated.

5.6.6                  Evaluation of Residual of Road Traffic Noise Impacts

5.6.6.1                Road traffic noise impact from the Project can be properly mitigated by implementing the proposed noise mitigation measures such as noise barriers and enclosures on some sections of project roads, LNRS on some road sections and acoustic windows on some planned residential developments. Adverse residual road traffic noise impact is not anticipated.

5.7                         Fixed Noise Sources Impact Assessment

5.7.1                  Fixed Noise Sources Impact Assessment Methodology

5.7.1.1                Fixed noise sources impact assessment will be conducted based on the following procedures:

·                  Determine the assessment area;

·                  Identify and locate representative NSRs that may be affected by the noise sources;

·                  Determine the noise criteria for both daytime and night-time;

·                  Use standard acoustic principle for attenuation and directivity;

·                  Adopt correction of tonality, impulsiveness and intermittency as stipulated in TM-Places;

·                  Calculate the noise impacts using assumed plant inventories and utilisation schedule for worst case scenario; and

·                  Cumulative impacts will be included.

5.7.2                  Prediction and Evaluation of Fixed Noise Sources Impact

Scenarios

5.7.2.1                The fixed noise sources impact assessment of unmitigated scenario and mitigated scenario of worst operation mode representing the maximum noise emission is conducted with respect to the criteria set out in Annex 5 of the EIAO-TM.  For planned fixed noise sources, the worst operation mode with 100% operation will be predicted based on backward calculation of separation distance. Hence, the maximum SWL will be predicted regardless on the percentage usage. Validity of the operation modes have been confirmed with the project proponent.  Project proponent would further liaise and agree with the relevant departments on the responsibility of implementation and maintenance of the predicted maximum allowable SWLs for the planned fixed plant noise sources in the detailed design stage.  For existing fixed noise sources, their SWLs have been estimated based on measured sound pressure levels (SPLs) for cumulative assessment.

Prediction of Noise Impact

Existing Industrial Zone (Outside PDA near Fui Sha Wai)

5.7.2.2                An “I” zone located to the north of YLH and to the east of Fui Sha Wai.  The nearest existing NSR E4_TYST_R01 is encroached within the “I” zone, and the nearest planned NSR P_R1.2_R05 is located at about 330m away from the “I” zone.

5.7.2.3                According to the prevailing noise measurements, the noise levels at PNM-04 (refer to Appendix 5.1), which is located at about 70m away from the “I” zone, are 60-62dB(A), 60-61dB(A) and 59-60dB(A) during daytime, evening time and night-time periods respectively, and have included the effects of all the noise sources in the vicinity such as road traffic noise, community noise, fixed noise sources impacts from the “I” zone.  Since the total noise from all these various sources are within the criteria, adverse fixed noise sources impacts from the existing “I” zone near Fui Sha Wai alone on surrounding NSRs are not anticipated.

5.7.2.4                In addition, non-noise sensitive buildings of about 40m high will be developed on the OU zone (i.e. OU1.7, OU1.8, OU1.9 and OU1.10) in between the planned residential sites and the “I” zone.  These developments can provide screening effect for fixed plant at the industrial and residential interface.  Therefore, adverse fixed noise sources impacts from the existing “I” zone near Fui Sha Wai on NSRs within the PDA are not anticipated.  Since there are no other major existing and planned fixed noise sources in the vicinity of the “I” zone, cumulative fixed noise sources impacts are not anticipated.

Existing Livestock Farm (AGR3.1)

5.7.2.5                A livestock farm located within the PDA (AGR3.1) and will be retained during the development.  It is located in Area 3 at the southern end of Kung Um Road.  The nearest existing NSR E4_WNT_R12 is located at about 90m away from the livestock farm, and the nearest planned NSR P_VR3.1_R03 is located at about 185m away from the livestock farm.  The farm will be located in the vicinity of planned government reserve (intended for government depot) (G3.1 and G3.3) and STW (OU3.3) and therefore, cumulative fixed noise sources impacts are considered in the assessment.

5.7.2.6                The major noise sources of the livestock farm would mainly consist of ventilation system with louver and generator etc. and there would have intermittent nuisance of cock’s crowing around the clock. Noise measurement has been conducted at a distance of 10m away from the chicken farm and the SPL was found to be about 55dB(A).  Since the nearest existing NSR E4_WNT_R12  is located at about 90m away from the livestock farm, and the nearest planned NSR P_VR3.1_R03 is located at about 185m away from the livestock farm, adverse fixed noise sources impacts from the existing livestock farm alone on surrounding NSRs are not anticipated.

Existing Lung Tin Sewage Pumping Station (OU2.2)

5.7.2.7                The existing LTSPS is located at about 20m to the south of YLH and about 20m to the west of Kung Um Road.  Noise measurement has been conducted at a distance of 10m away from the LTSPS and the SPL was found to be about 57dB(A).  Since the nearest existing NSR E4_TLT_R01 is located at about 75m away from the LTSPS, and the nearest planned NSR P_R2.2_R02 is located at about 190m away from the LTSPS, adverse fixed noise sources impacts from the LTSPS alone on surrounding NSRs are not anticipated.

Planned Electricity Substation (OU2.1)

5.7.2.8                An ESS (OU2.1) is planned to be located in Area 2 at the middle of the PDA at about 3m to the west of Kung Um Road.  The major noise sources of ESS are from the operation of transformers and ventilation systems.  Since there is no design information on the proposed ESS, analysis has been conducted to determine the maximum allowable SWL based on the separation distance.  Table 5.7.1 below shows the maximum allowable SWL of the ESS. Detailed calculation is shown in Appendix 5.17.

Table 5.7.1 Summary of maximum allowable SWL of ESS (OU2.1)

Plant Item

Maximum Allowable SWL, dB(A)

ESS (OU2.1)

79

5.7.2.9                The nearest existing NSR E4_TLT_R17 is located at about 40m from the ESS, and the distance attenuation is about 40dB(A) according to standard point source correction. The nearest planned NSR P_R2.2_R19 is located at about 95m from the ESS, and the distance attenuation is about 48dB(A) according to standard point source correction.  The maximum predicted fixed noise level is about 45dB(A).  Since there are no other major existing and planned fixed noise sources in the vicinity of the ESS affecting the surrounding NSRs, cumulative fixed noise sources impacts are not anticipated.

5.7.2.10            The Contractor shall enclose noisy plants and install acoustic silencers, acoustic louvre or acoustic enclosure as appropriate to ensure the specified maximum SWLs as shown in Table 5.7.1 will not be exceeded. The future design and selection of the equipment shall also aim to reduce the effect of tonality at the NSRs as much as practicable. However, the Contractor shall also take into account the latest available information at time of detailed design to review and update the maximum allowable SWL as appropriate.

Planned Refuse Collection Points and Sewage Pumping Stations (OU1.12, OU2.2)

5.7.2.11            Two RCP and two SPS (OU1.12, OU2.2) are planned within the PDA.  One RCP and one SPS (OU1.12) will be located at the northern part of the PDA to south of YLH and East of TYST Interchange.  One RCP and one SPS (OU1.12) will be located in Area 1 at about 200m from the planned PTI (OU1.1) and retention tank (OU1.11) and hence cumulative fixed noise sources impacts are considered in the assessment.  The major noise sources of RCP and SPS are from the operation of pumps, mechanically racked screens, transformer and ventilation fan of deodorization unit.  Since there is no design information on the above proposed RCP and SPS, analysis has been conducted to determine the maximum allowable SWL based on the separation distance.  Table 5.7.2 below shows the maximum allowable SWL of the RCP and SPS. Detailed calculation is shown in Appendix 5.17.

Table 5.7.2 Summary of maximum allowable SWL of RCP and SPS (OU1.12, OU2.2)

Plant Item

Maximum Allowable SWL, dB(A)

RCP and SPS (OU1.12)

89[1]

RCP and SPS (OU2.2)

86[2]

Note:

[1]     Cumulative impacts from the nearby planned PTI (OU1.1) and retention tank (OU1.11) is included.

[2]     Cumulative impacts from the nearby existing LTSPS is included.

5.7.2.12            The nearest existing NSR E4_LHWT_R01 is located at about 70m from the RCP and SPS (OU1.12) and the distance attenuation is about 45dB(A) according to standard point source correction.  The nearest planned NSR P_OU1.2a_R02 is located at about 100m from the RCP and SPS (OU1.12) and the distance attenuation is about 48dB(A) according to standard point source correction.  The maximum predicted cumulative fixed noise level is about 50dB(A).

5.7.2.13            Another RCP and SPS (OU2.2) will be located in Area 2 at the northern part of the PDA to south of YLH and in the vicinity of the existing LTSPS, and hence cumulative fixed noise sources impacts are considered in the assessment.  The nearest existing NSR E2_TLY_R02 is located at about 70m from the RCP and SPS (OU2.2) and the distance attenuation is about 45dB(A) according to standard point source correction.  The nearest planned NSR P_R2.2_R02 is located at about 165m from the RCP and SPS (OU2.2) and the distance attenuation is about 52dB(A) according to standard point source correction.  The maximum predicted fixed noise level is about 49dB(A).

5.7.2.14            The Contractor shall enclose pumps, noisy plants and install acoustic silencers, acoustic louvre or acoustic enclosure as appropriate to ensure the specified maximum SWLs as shown in Table 5.7.2 will not be exceeded. The future design and selection of the equipment shall also aim to reduce the effect of tonality at the NSRs as much as practicable. However, the Contractor shall also take into account the latest available information at time of detailed design to review and update the maximum allowable SWL as appropriate.

Planned Sewage Treatment Works (OU3.3)

5.7.2.15            A STW (OU3.3) is planned to be located in Area 3 at the southern end of the PDA to the southwest of the existing Wong Nai Tun Tsuen and in the vicinity of an existing livestock farm (AGR3.1) and planned government reserve (intended for government depot) (G3.1 and G3.3), and hence cumulative fixed noise sources impacts are considered in the assessment.  The major noise sources of the STW are from the operation of sewage facilities and ventilation system.  Since there is no design information on the proposed STW, analysis has been conducted to determine the maximum allowable SWL based on the separation distance.  Table 5.7.3 below shows the maximum allowable SWL of the STW. Detailed calculation is shown in Appendix 5.17.

Table 5.7.3 Summary of maximum allowable SWL of STW (OU3.3)

Plant Item

Maximum Allowable SWL, dB(A)

STW (OU3.3)

89[1]

Note:

[1]     Cumulative impacts from the nearby existing livestock farm (AGR3.1) and planned government reserve (intended for government depot) (G3.1 and G3.3) is included.

5.7.2.16            The nearest existing NSR E4_WNT_R11 is located at about 260m from the STW, and the distance attenuation is about 56dB(A) according to standard point source correction. The nearest planned NSR P_VR3.1_R03 is located at about 180m from the STW, and the distance attenuation is about 53dB(A) according to standard point source correction.  The maximum predicted cumulative fixed noise level is 45dB(A).

5.7.2.17            The Contractor shall enclose pumps, noisy plants and install acoustic silencers, acoustic louvre or acoustic enclosure as appropriate to ensure the specified maximum SWLs as shown in Table 5.7.3 will not be exceeded. The future design and selection of the equipment shall also aim to reduce the effect of tonality at the NSRs as much as practicable. However, the Contractor shall also take into account the latest available information at time of detailed design to review and update the maximum allowable SWL as appropriate.

Planned Divisional Fire Station and Ambulance Depot (G2.3)

5.7.2.18            A divisional fire station and ambulance depot (G2.3) is planned to be located in Area 2 at the middle of the PDA to the south of the existing Shan Ha Tsuen.  The major fixed noise sources of the divisional fire station and ambulance depot include chiller, condenser, transformer, etc.  Other noise sources associated with the divisional fire station and ambulance depot include station loudspeakers, siren and vehicle sirens.  Since there is no design information on the proposed divisional fire station and ambulance depot, analysis has been conducted to determine the maximum allowable SWL based on the separation distance.  Table 5.7.4 below shows the maximum allowable SWL of the divisional fire station and ambulance depot. Detailed calculation is shown in Appendix 5.17.

Table 5.7.4 Summary of maximum allowable SWL of fire station and ambulance depot (G2.3)

Plant Item

Maximum Allowable SWL, dB(A)

Divisional Fire Station and Ambulance Depot (G2.3)

88

5.7.2.19            The nearest existing NSR E4_SHT_R04 is located at about 270m from the divisional fire station and ambulance depot, and the distance attenuation is about 57dB(A) according to standard point source correction.  The nearest planned NSR P_R2.6d_R02 is located at about 60m from the divisional fire station and ambulance depot, and the distance attenuation is about 44dB(A) according to standard point source correction.  The maximum predicted fixed noise level is about 50dB(A).  Since there are no other major existing and planned fixed noise sources in the vicinity of the divisional fire station and ambulance depot affecting the surrounding NSRs, cumulative fixed noise sources impacts are not anticipated.

5.7.2.20            The Contractor shall enclose noisy plants and install acoustic silencers, acoustic louvre or acoustic enclosure as appropriate to ensure the specified maximum SWLs as shown in Table 5.7.4 will not be exceeded. The future design and selection of the equipment shall also aim to reduce the effect of tonality at the NSRs as much as practicable. However, the Contractor shall also take into account the latest available information at time of detailed design to review and update the maximum allowable SWL as appropriate.

Planned PTI (OU1.1, OU2.3, OU3.2a, in the vicinity of Yoho Midtown)

5.7.2.21            Three PTIs (OU1.1, OU2.3, OU3.2a) are planned within the PDA and one PTI outside the PDA near Yoho Midtown.  The PTIs would be decked under proposed building structures and designed with no line-of-sight at the noise sensitive use.  In addition, the PTI would be oriented with ingress and egress facing away from NSRs in close vicinity.  The major fixed noise sources of PTIs include the operation of ventilation fans and bus idling.  Since there is no design information on the above proposed PTIs, analysis has been conducted to determine the maximum allowable SWL based on the separation distance.  Table 5.7.5 below shows the maximum allowable SWL of the PTIs. Detailed calculation is shown in Appendix 5.17.

Table 5.7.5 Summary of maximum allowable SWL for PTI (OU1.1, OU2.3, OU3.2a, near Yoho Midtown outside the PDA)

Plant Item

Maximum Allowable SWL, dB(A)

PTI (OU1.1)

83[1]

PTI (OU2.3)

83[2]

PTI (OU3.2a)

78[3]

PTI (near Yoho Midtown outside the PDA)

77

Note:

[1]     Cumulative impacts from the nearby planned retention tank (OU1.11) as well as RCP and SPS (OU1.12) is included.

[2]     Cumulative impacts from the nearby planned sports centre and market (G2.1) is included.

[3]     Cumulative impacts from the nearby planned district police station (G3.2) is included.

5.7.2.22            One of the PTIs (OU1.1) will be located in Area 1 at the northern part of the PDA to south of TYST Interchange adjacent to a planned retention tank (OU1.11) and about 200m from a planned RCP and SPS (OU1.12), and hence cumulative fixed noise sources impacts are considered in the assessment.  The nearest existing NSR E1_ELD_R03 is located at about 110m from the PTI and the distance attenuation is about 49dB(A) according to standard point source correction.  The nearest planned NSR is P_OU1.1_R10.  However, since the planned NSR P_OU1.1_R10 is not facing the PTI and directivity correction applied, the worst affected planned NSR would be P_OU1.3_R01 which is located at about 62m from the PTI and the distance attenuation is about 44dB(A) according to standard point source correction.  The maximum predicted cumulative fixed noise level is about 50dB(A).

5.7.2.23            Another PTI (OU2.3) will be located in Area 2 at the middle of the PDA at about 35m to west of Kung Um Road adjacent to a planned sports centre and market (G2.1), and hence cumulative fixed noise sources impacts are considered in the assessment.  The nearest existing NSR E2_MKTT_R01 is located at about 80m from the PTI and the distance attenuation is about 46dB(A) according to standard point source correction.  The nearest planned is NSR P_OU2.3_R02.  However, since the planned NSR P_OU2.3_R02 is not facing the PTI and directivity correction applied, the worst affected planned NSR would be P_R2.6a_R03 which is located at about 50m from the PTI and the distance attenuation is about 42dB(A) according to standard point source correction.  The maximum predicted cumulative fixed noise level is about 48dB(A).

5.7.2.24            Another PTI (OU3.2a) will be located in Area 3 to the west of Pak Sha Tsuen and at about 25m to the west of Kung Um Road adjacent to a planned district police station (G3.2), and hence cumulative fixed noise sources impacts are considered in the assessment.  The nearest existing NSR E4_PST_R18 is located at about 145m from the PTI and the distance attenuation is about 51dB(A) according to standard point source correction.  The nearest planned NSR is P_OU3.2a_R01. However, since the planned NSR P_OU3.2a_R01 is not facing the PTI and directivity correction applied, the worst affected planned NSR would be P_OU3.2b_R03 which is located at about 29m from the PTI and the distance attenuation is about 37dB(A) according to standard point source correction.  The maximum predicted cumulative fixed noise level is about 48dB(A).

5.7.2.25            The fourth PTI will be located outside the PDA to the east of Yoho Midtown and north of Kwong Ming Ying Loi School.  Since there are no other major existing and planned fixed noise sources in the vicinity of the PTI affecting the surrounding NSRs, cumulative fixed noise sources impacts are not anticipated.  The nearest existing NSR E4_KMYLS_E02 is located at about 10m from the PTI and the distance attenuation is about 28dB(A) according to standard point source correction.  There are no planned NSR in the vicinity of the PTI.  The maximum predicted fixed noise level is about 55dB(A).

5.7.2.26            The Contractor shall enclose noisy plants and install acoustic silencers, acoustic louvre or acoustic enclosure as appropriate to ensure the specified maximum SWLs as shown in Table 5.7.5 will not be exceeded. The future design and selection of the equipment shall also aim to reduce the effect of tonality at the NSRs as much as practicable. However, the Contractor shall also take into account the latest available information at time of detailed design to review and update the maximum allowable SWL as appropriate.

Planned Sports Centre and Market (G2.1)

5.7.2.27            A sports centre and a market (G2.1) are planned to be co-located in Area 2 at the middle of the PDA at about 25m to west of Kung Um Road and in the vicinity of a planned PTI (OU2.3), and hence cumulative fixed noise sources impacts are considered in the assessment.  The major fixed noise sources of the sports centre and market include chiller, ventilation louver, etc.  Since there is no design information on the proposed sports centre and market, analysis has been conducted to determine the maximum allowable SWL based on the separation distance.  Since the nearest NSR (i.e. P_R2.5_R07) is located in close vicinity to the sports centre and market, the fixed noise sources should be located away from the NSR as far as possible and oriented with opening facing away from the NSR (i.e. opening facing south to the road).  Therefore, the maximum allowable SWL has included directivity correction factor.  Table 5.7.6 below shows the maximum allowable SWL of the sports centre and market. Detailed calculation is shown in Appendix 5.17.

Table 5.7.6 Summary of maximum allowable SWL of sports centre and market (G2.1)

Plant Item

Maximum Allowable SWL, dB(A)

Sports Centre and Market (G2.1)

79[1]

Note:

[1]     Cumulative impacts from the nearby planned PTI (OU2.3) is included.

5.7.2.28            The nearest existing NSR E2_MKTT_R01 is located at about 85m from the sports centre and market, and the distance attenuation is about 47dB(A) according to standard point source correction.  The nearest planned NSR P_R2.5_R07 is located at about 10m from the sports centre and market, and the distance attenuation is about 28dB(A) according to standard point source correction.  The maximum predicted cumulative fixed noise level is 48dB(A).

5.7.2.29            The Contractor shall enclose noisy plants and install acoustic silencers, acoustic louvre or acoustic enclosure as appropriate to ensure the specified maximum SWLs as shown in Table 5.7.6 will not be exceeded. The Contractor shall also ensure the fixed plants are located away from concerned NSRs located to the north and west of the centre and market as well as their openings facing south to the road. The future design and selection of the equipment shall also aim to reduce the effect of tonality at the NSRs as much as practicable. However, the Contractor shall also take into account the latest available information at time of detailed design to review and update the maximum allowable SWL as appropriate.

Planned District Police Station (G3.2)

5.7.2.30            A district police station (G3.2) is planned to be located in Area 3 to the west of Pak Sha Tsuen and at about 150m to the west of Kung Um Road and in the vicinity of a planned PTI (OU3.2a), and hence cumulative fixed noise sources impacts are considered in the assessment.  The major fixed noise sources of the district police station include chiller, ventilation louver, etc.  Since there is no design information on the proposed station, analysis has been conducted to determine the maximum allowable SWL based on the separation distance.  Since the nearest NSR (i.e. P_R3.5b_R02) is located in close vicinity to the district police station, the fixed noise sources should be located away from the NSR as far as possible and oriented with opening facing away from the NSR (i.e. opening facing north east to the road).  Therefore, the maximum allowable SWL has included directivity correction factor. Table 5.7.7 below shows the maximum allowable SWL of the district police station. Detailed calculation is shown in Appendix 5.17.

Table 5.7.7 Summary of maximum allowable SWL of district police station (G3.2)

Plant Item

Maximum Allowable SWL, dB(A)

District Police Station (G3.2)

77[1]

Note:

[1]     Cumulative impacts from the nearby planned PTI (OU3.2a) is included.

5.7.2.31            The nearest existing NSR E4_CPG_R01 is located at about 240m from the district police station and the distance attenuation is about 56dB(A) according to standard point source correction.  The nearest planned NSR P_R3.5b_R02 is located at about 8m from the district police station and the distance attenuation is about 26dB(A) according to standard point source correction.  The maximum predicted cumulative fixed noise level is about 48dB(A).

5.7.2.32            The Contractor shall enclose noisy plants and install acoustic silencers, acoustic louvre or acoustic enclosure as appropriate to ensure the specified maximum SWLs as shown in Table 5.7.7 will not be exceeded. The Contractor shall also ensure the fixed plants are located away from concerned NSRs located to the south west of the station as well as their openings facing north east to the road. The future design and selection of the equipment shall also aim to reduce the effect of tonality at the NSRs as much as practicable. However, the Contractor shall also take into account the latest available information at time of detailed design to review and update the maximum allowable SWL as appropriate.

Planned Sites for Storage Use, Open Storage as well as Storage and Workshop (OU1.5, OU1.6, OU1.7, OU1.8, OU1.9, OU1.10)

5.7.2.33            Several sites in Area 1 at the north western part of the PDA to the south of YLH are planned for storage use, open storage as well as storage and workshop (OU1.5, OU1.6, OU1.7, OU1.8, OU1.9, OU1.10), and hence cumulative fixed noise sources impacts are considered in the assessment.  The major fixed noise sources of the sites for storage use, open storage as well as storage and workshop include loading and unloading, forklifting, chiller, ventilation louver, etc..  Since there is no design information on the proposed sites for storage use, open storage as well as storage and workshop (OU1.5, OU1.6, OU1.7, OU1.8, OU1.9, OU1.10), analysis has been conducted to determine the maximum allowable SWL based on the separation distance.  Table 5.7.8 below shows the maximum allowable SWL of the sites for storage use, open storage as well as storage and workshop. Detailed calculation is shown in Appendix 5.17.

Table 5.7.8 Summary of maximum allowable SWL of sites for storage use, open storage as well as storage and workshop (OU1.5, OU1.6, OU1.7, OU1.8, OU1.9, OU1.10)

Plant Item

Maximum Allowable SWL, dB(A)

Storage Use Site (OU1.5)

87[1]

Open Storage Site (OU1.6)

83[2]

Storage Use Site (OU1.7)

80[3]

Storage and Workshop Site (OU1.8)

88[4]

Storage Use Site (OU1.9)

81[5]

Storage Use Site (OU1.10)

78[6]

Note:

[1]     Cumulative impacts from the nearby planned open storage site (OU1.6), storage use sites (OU1.7, 1.9 and 1.10) as well as storage and workshop site (OU1.8) is included.

[2]     Cumulative impacts from the nearby planned storage use sites (OU1.5, 1.7,1.9 and 1.10) as well as storage and workshop site (OU1.8) is included.

[3]     Cumulative impacts from the nearby planned open storage site (OU1.6), storage use sites (OU1.5, 1.9 and 1.10) as well as storage and workshop site (OU1.8) is included.

[4]     Cumulative impacts from the nearby planned open storage site (OU1.6) and storage use sites (OU1.5, 1.7, 1.9 and 1.10) is included.

[5]     Cumulative impacts from the nearby planned open storage site (OU1.6), storage use sites (OU1.5, 1.7 and 1.10) as well as storage and workshop site (OU1.8) is included.

[6]     Cumulative impacts from the nearby planned open storage site (OU1.6), storage use sites (OU1.5, 1.7 and 1.9) as well as storage and workshop site (OU1.8) is included.

5.7.2.34            The existing NSR located closest to these OU sites is E1_TYST_R07.  It is located at about 45m from the storage use site (OU1.7) and the distance attenuation is about 41dB(A) according to standard point source correction.  The planned NSR located closest to these OU sites is P_R1.2_R05.  It is located at about 35m from the storage use site (OU1.10) and the distance attenuation is about 39dB(A) according to standard point source correction.  The maximum predicted cumulative fixed noise level is about 48dB(A).

5.7.2.35            The Contractor shall install acoustic silencers, noise barrier or acoustic enclosure as appropriate to ensure the specified maximum SWLs as shown in Table 5.7.8 will not be exceeded. The future design and selection of the equipment shall also aim to reduce the effect of tonality at the NSRs as much as practicable. However, the Contractor shall also take into account the latest available information at time of detailed design to review and update the maximum allowable SWL as appropriate.

Planned Retention Tank (OU1.11)

5.7.2.36            A retention tank (OU1.11) is planned to be located in a district open space in Area 1 near TYST Interchange and in the vicinity of a planned PTI (OU1.1), RCP and SPS (OU1.12), and hence cumulative fixed noise sources impacts are considered in the assessment. The retention tank is planned to be installed underground.  The major noise sources would mainly be its associated pumping and ventilation system which is located above ground.  Since there is no design information on the proposed retention tank, analysis has been conducted to determine the maximum allowable SWL based on the separation distance.  Table 5.7.9 below shows the maximum allowable SWL of the retention tank. Detailed calculation is shown in Appendix 5.17.

Table 5.7.9 Summary of maximum allowable SWL of retention tank (OU1.11)

Plant Item

Maximum Allowable SWL, dB(A)

Retention Tank (OU1.11)

77[1]

Note:

[1]     Cumulative impacts from the nearby planned PTI (OU1.1) as well as RCP and SPS (OU1.12) is included.

5.7.2.37            The nearest existing NSR E1_ELD_R02 is located at about 105m from the retention tank and the distance attenuation is about 48dB(A) according to standard point source correction.  The nearest planned NSR P_OU1.1_R10 is located at about 32m from the retention tank and the distance attenuation is about 38dB(A) according to standard point source correction.  The maximum predicted cumulative fixed noise level is about 50dB(A).

5.7.2.38            The Contractor shall enclose noisy plants and install acoustic silencers, acoustic louvre or acoustic enclosure as appropriate to ensure the specified maximum SWLs as shown in Table 5.7.9 will not be exceeded. The future design and selection of the equipment shall also aim to reduce the effect of tonality at the NSRs as much as practicable. However, the Contractor shall also take into account the latest available information at time of detailed design to review and update the maximum allowable SWL as appropriate.

Planned Government Reserve (Intended for Government Depot) (G3.1, G3.3)

5.7.2.39            Two sites in Area 3 at the southern end of the PDA to the southwest of the existing Wong Nai Tun Tsuen are planned for government depot use (G3.1 and G3.3) and will be located in the vicinity of an existing livestock farm (AGR3.1) and planned STW (OU3.3), and hence cumulative fixed noise sources impacts are considered in the assessment.  The major noise sources of the government depot include the operation of chiller, ventilation louver, etc..  Since there is no design information on the proposed government depot, analysis has been conducted to determine the maximum allowable SWL based on the separation distance.  Table 5.7.10 below shows the maximum allowable SWL of the government depot. Detailed calculation is shown in Appendix 5.17.

Table 5.7.10 Summary of maximum allowable SWL of government depot (G3.1 and G3.3)

Plant Item

Maximum Allowable SWL, dB(A)

Government Depot (G3.1 and G3.3)

88[1]

Note:

[1]     Cumulative impacts from the nearby existing livestock farm (AGR3.1) and planned STW (OU3.3) is included.

5.7.2.40            The nearest existing NSR E4_WNT_R12 is located at about 155m from the government depot and the distance attenuation is about 52dB(A) according to standard point source correction.  The nearest planned NSR P_VR3.1_R03 is located at about 280m from the government depot and the distance attenuation is about 57dB(A) according to standard point source correction.  The maximum predicted cumulative fixed noise level is about 45dB(A).

5.7.2.41            The Contractor shall enclose noisy plants and install acoustic silencers, acoustic louvre or acoustic enclosure as appropriate to ensure the specified maximum SWLs as shown in Table 5.7.10 will not be exceeded. The future design and selection of the equipment shall also aim to reduce the effect of tonality at the NSRs as much as practicable. However, the Contractor shall also take into account the latest available information at time of detailed design to review and update the maximum allowable SWL as appropriate.

Cumulative Fixed Noise Sources Impact

5.7.2.42            The predicted fixed noise sources impacts at existing and planned NSRs are given in Table 5.7.11. Detailed cumulative fixed noise calculation is shown in Appendix 5.18.

Table 5.7.11 Predicted fixed noise sources impacts at existing and planned NSRs

ID

[1]

NAP

[2]

ASR

Planned Noise Source Only

Existing + Planned Noise Source

Max. Predicted SPL, dB(A) [3]

Night-time Criteria Leq (30 min), dB(A) [4]

Compliance [Y/N]

Max. Predicted SPL, dB(A) [3]

Night-time Criteria Leq (30 min), dB(A) [4]

Compliance [Y/N]

Existing NSRs (Within PDA)

E1_ELD

E1_ELD_R02

A

43

45

Y

43

50

Y

E1_ELD

E1_ELD_R03

A

42

45

Y

42

50

Y

E1_TYST

E1_TYST_R01

B

46

50

Y

46

55

Y

E1_TYST

E1_TYST_R07

B

48

50

Y

48

55

Y

E2_MKTT

E2_MKTT_R01

A

44

45

Y

44

50

Y

E2_TLY

E2_TLY_R02

B

47

50

Y

49

55

Y

Existing NSRs (Outside PDA)

E4_TTT

E4_TTT_R01

B

46

50

Y

46

55

Y

E4_TLT

E4_TLT_R01

B

43

50

Y

47

55

Y

E4_TLT

E4_TLT_R17

A

45

45

Y

45

50

Y

E4_WNT

E4_WNT_R11

A

41

45

Y

42

50

Y

E4_WNT

E4_WNT_R12

A

43

45

Y

45

50

Y

E4_SHT

E4_SHT_R04

A

37

45

Y

37

50

Y

E4_CPG

E4_CPG_R01

A

34

45

Y

34

50

Y

E4_PST

E4_PST_R18

A

34

45

Y

34

50

Y

E4_KMYLS

E4_KMYLS_E02

C

55

55

Y

55

60

Y

E4_FSW

E4_FSW_R02

B

46

50

Y

46

55

Y

E4_LHWT

E4_LHWT_R01

B

50

50

Y

50

55

Y

Planned NSRs

P_R2.2

P_R2.2_R02

C

40

55

Y

42

60

Y

P_R2.2

P_R2.2_R19

B

37

50

Y

37

55

Y

P_R2.4

P_R2.4_R04

B

44

50

Y

44

55

Y

P_R2.5

P_R2.5_R07

B

48

50

Y

48

55

Y

P_VR3.1

P_VR3.1_R03

B

43

50

Y

44

55

Y

P_R2.6a

P_R2.6a_R03

B

48

50

Y

48

55

Y

P_R2.6d

P_R2.6d_R02

B

50

50

Y

50

55

Y

P_R3.5b

P_R3.5b_R02

B

48

50

Y

48

55

Y

P_E3.1

P_E3.1_E01

B

40

50

Y

41

55

Y

P_OU1.3

P_OU1.3_R01

B

46

50

Y

46

55

Y

P_OU2.3

P_OU2.3_R02

B

47

50

Y

47

55

Y

P_OU3.2a

P_OU3.2a_R01

B

45

50

Y

45

55

Y

P_OU3.2b

P_OU3.2b_R03

B

48

50

Y

48

55

Y

P_OU1.1

P_OU1.1_R02

B

48

50

Y

48

55

Y

P_OU1.1

P_OU1.1_R10

B

48

50

Y

48

55

Y

P_R1.2

P_R1.2_R05

B

46

50

Y

46

55

Y

Notes:

[1]   The assessment only includes NSRs which rely on opened windows for ventilation.

[2]   NAP – Noise Assessment Point.

[3]   Shortest distances between NSRs and the noise sources have been used to calculate the maximum predicted SPL.

[4]   Only night-time criteria are assessed as worst case scenario. Noise criterion is proposed based on ANL-5 for planned fixed noise sources impact and ANL for existing and planned fixed noise sources impact.

5.7.3                  Mitigation of Fixed Noise Sources Impact

5.7.3.1                For the proposed noise sources which are located near to existing and planned NSRs, the following tentative noise mitigation measures are considered:

·             All the pumps and noisy plants should be enclosed inside a building structure;

·             Proper selection of quiet plant aiming to reduce the tonality at NSRs;

·             Installation of silencer / acoustic enclosure / acoustic louvre for the exhaust of ventilation system; and

·             Openings of ventilation systems should be located away from NSRs as far as practicable and oriented away from the NSRs.

5.7.3.2                The feasibility, practicability, programming and effectiveness of the above mitigation measures have been reviewed by engineer. As the fixed noise sources impacts for planned and existing NSRs will be within respective noise criteria, the number of dwellings, classrooms and other sensitive receivers that will be exposed to noise impact exceeding the criteria set out in Annex 5 of the EIAO-TM is nil.

5.7.3.3                This EIA has demonstrated that the practicability of the noise mitigation measures to be implemented.  In order to allow flexibility of the future developer of the proposed OU(SU) sites (i.e. OU1.5, 1.7, 1.9 and 1.10) and OU(S+W) site (i.e. OU1.8), it is proposed to state in the land lease condition that the future developer could demonstrate the noise impact of the proposed OU(SU) sites (i.e. OU1.5, 1.7, 1.9 and 1.10) and OU(S+W) site (i.e. OU1.8) to the satisfactory of the relevant authority (i.e. EPD).  The detailed design should also incorporate the following good practice in order to minimize to the neighbouring NSRs. 

·         Louvres should be orientated away from nearby NSRs, preferably onto main roads which are less sensitive.

·         Direct noise mitigation measures including silencers, acoustic louvers and acoustic enclosures should be allowed for the design of the noise sources of the industrial block. 

·         Changes to industrial noise sources in the future should only be made with reference to the noise criteria. For example, careful consideration is required for relocation of fixed plant etc.

5.7.3.4                Table 5.7.12 below summarizes the planned fixed noise sources as well as mitigation measures proposed.

Table 5.7.12 Summary of planned fixed noise sources and key mitigation measure proposed

Fixed Noise Source

Key Mitigation Measure Proposed

Retention Tank, STW, SPS & RCP

i)                     All the pumps and noisy plants should be enclosed inside a building structure;

ii)                   Proper selection of quiet plant aiming to reduce tonality at NSRs;

iii)                  Installation of silencer / acoustic enclosure / acoustic louvre for the exhaust of ventilation system;

iv)                 Openings of ventilation systems should be located away from NSRs as far as practicable.

Sports Centre and Market, District Police Station, Divisional Fire Station and Ambulance Depot, Government Reserve (Intended for Government Depot), PTI, ESS

i)                     All the noisy plants should be enclosed inside a building structure;

ii)                   Proper selection of quiet plant aiming to reduce tonality at NSRs;

iii)                  Installation of silencer / acoustic enclosure / acoustic louvre for the exhaust of ventilation system;

iv)                 Openings of ventilation systems should be located and oriented away from NSRs as far as practicable.

Sites for Storage Use, Open Storage as well as Storage and Workshop

i)                     All the noisy plants should be enclosed inside a building structure;

ii)                   Proper selection of quiet plant aiming to reduce tonality at NSRs;

iii)                  Installation of silencer / acoustic enclosure / acoustic louvre for the exhaust of ventilation system and fixed plants such as chillers / processing plant;

iv)                 Openings of ventilation systems and fixed plants such as chillers / processing plant should be located and oriented away from NSRs as far as practicable;

v)                   Changes to industrial noise sources in the future should only be made with reference to the noise criteria. For example, careful consideration is required for relocation of fixed plant etc.

5.7.4                  Assessment of Side Effects and Constraints

5.7.4.1                Side effects and constraints are not anticipated through early design to allow implementation of the proposed noise mitigation measures including enclosure of pumps and noisy plants inside a building structure, proper selection of quiet plant, installation of silencer / acoustic enclosure / acoustic louvre for the exhaust of ventilation system as well as location and orientation of ventilation system openings away from NSRs as far as practicable.

5.7.5                  Evaluation of Constraints on Planned Noise Sensitive Developments / Land Uses

5.7.5.1                With all practicable direct technical remedies in place, no additional measures within the planned noise sensitive uses would be required.

5.7.6                  Evaluation of Residual Fixed Noise Sources Impact

5.7.6.1                Fixed noise sources impact arising from the Project can be properly mitigated by implementing the proposed noise mitigation measures. Adverse residual noise impacts are thus not anticipated.

5.8                         Rail Noise Impact Assessment

5.8.1                  Environmentally Friendly Transport Services

5.8.1.1                An EFTS is proposed to be developed as one of the major modes of transportation within the PDA with possible connection to West Rail Tin Shui Wai Station. 

5.8.1.2                The EFTS system within the PDA will be an extension from that in the approved EIA report for HSK NDA (AEIAR-203/2016).  Various modes of EFTS, which include Light Rail Transit (LRT), trolley bus, automatic people mover (APM), monorails, modern tramway and electric / LPG bus, will be investigated in later stage by the respective project proponent.  The assessment is based on the best and latest information available during the course of EIA study.  For conservative rail noise impact assessment, the rail based EFTS has been selected in this study. 

5.8.2                  Rail Noise Assessment Assumption and Methodology

5.8.2.1                A reference scheme was developed with the assumptions and assessed level shown in Table 5.8.1 below.  The reference scheme has followed those in the approved EIA report for HSK NDA.

Table 5.8.1 Rail based EFTS reference scheme

Items

Description

Type of source

Automated guideway transit, steel wheel, welded rail

Noise source level

SEL 80 dB(A) at 50 feet and 50 mph

Ref: Table 5-1 Transit Noise and Vibration Impact Assessment FTA-VA-90-1003-06 May 2006 by Office of Planning and Environment Federal Transit Administration

Operating speed

Assumed 40 kph

Frequency

Assumed 5 trains per headway

Track enhancement

·   Embedded rail: 3 dB(A) reduction

·   Green track with vegetation: 2 dB(A) reduction

Reference material as shown in Appendix 5.19

5.8.3                  Prediction and Evaluation of Rail Noise Impact

5.8.3.1                Representative NSRs within 300m from the PDA and the associated infrastructure works which are closest to the EFTS alignment are identified and shown in Figure 5.6. Their buffer distances from the proposed EFTS alignment based on the indicative layout are summarized in Table 5.8.2. Information about the determination of noise criteria for representative NSRs are provided in Appendix 5.20.

Table 5.8.2 Buffer distances from representative NSRs to the proposed EFTS alignment

Stage

NSR[1]

NSR Description[2]

Use[3]

NAP

Distance from Track

Existing NSRs (Within PDA)

N/A

E1_PV

Park Villa

R

E1_PV_R02

36m

E1_TYST

Tong Yan San Tsuen

R

E1_TYST_R07

23m

Existing NSRs (Outside PDA)

N/A

E4_LHT

Lam Hau Tsuen

R

E4_LHT_R06

13m

Planned NSRs

Stage 1

P_R2.2

Public Housing

R

P_R2.2_R10

17m

Stage 2

P_R2.1b

Private Housing

R

P_R2.1b_R02

56m

P_R2.4

Public Housing

R

P_R2.4_R12

14m

Stage 3

P_R2.6d

Private Housing

R

P_R2.6d_R02

21m

Stage 4

P_OU1.2a

Private Housing

R

P_OU1.2a_R10

33m[4]

Note:

[1] The assessment only includes NSRs which rely on opened windows for ventilation.

[2] The first layer of NSRs which are most affected by the project within 300m from the PDA and the associated infrastructure works is included.

[3] R – Residential Premises.

[4] Based on the indicate layout for assessment, the first level of the NSR is about 32m and 9m away from the EFTS track vertically and horizontally, which gives a slant distance of about 33m from the EFTS track.

5.8.3.2                As shown in Table 5.8.2, Lam Hau Tsuen (i.e. E4_LHT) is the closest existing NSR to the EFTS track, while the public housing P_R2.4 and the private housing P_R2.6d are the closest planned public housing NSR and planned private housing NSR to the EFTS track respectively.  The representative existing and planned NSRs are located at least 13m and 14m respectively away from the proposed alignment for the EFTS.

5.8.3.3                According to the approved EIA report for HSK NDA, the predicted rail noise level for the NSRs with at least 10m buffer distance from the proposed alignment of EFTS would be lower than 55dB(A) based on the EFTS reference scheme as shown in Table 5.8.1.  As shown in Appendix 5.20 and Table 5.8.2, all representative NSRs along the EFTS in the PDA have ASR rating of B and will have buffer distance of at least 13m.  The rail noise level would be about 54 dB(A) for NSR at Lam Hau Tsuen (i.e. E4_LHT), which is the closest existing NSR to the EFTS track alignment, and comply with the night-time noise criterion of 55 dB(A).  Therefore, adverse rail noise impacts from EFTS are not anticipated for this study.

5.8.3.4                In case a rail cross or joint is designed for the EFTS, such rail cross or joint location should be located at the section with largest possible distance between the track and the NSR.  Alternatively, erect a noise barrier or enclosure at the rail cross or joint section to control the noise impact to the nearby NSRs.  Detailed design of the rail cross or joint along the track of EFTS and the necessity of associate mitigation measures will be carried out at later stage by the EFTS project proponent.

5.8.3.5                There is no design and operation detail of the EFTS during this Schedule 3 EIA study.  In any case there are deviations from the assumption in Table 5.8.1 and Table 5.8.3 above and causing an exceedance of the noise level compared with the criteria, the EFTS project proponent should implement further noise mitigation measures such as noise barrier and enclosure to control the noise impact by the EFTS to comply with the noise criteria.  Noise barrier and enclosure are effective and traditional mitigation measures to reduce rail noise by 10 dB(A) and 15 dB(A) respectively.

5.8.3.6                As discussed in Section 1.5.1 of this report, the proposed EFTS is a Schedule 2 DP under the EIA Ordinance.  The proposed EFTS will be designed, constructed and operated by the others.  The associated environmental impacts will be adequately addressed in a separate EIA study to be prepared and submitted under the EIA Ordinance by the future operator.

5.8.4                  Assessment of Side Effects and Constraints

5.8.4.1                Side effects and constraints are not anticipated through early design to allow sufficient space between EFTS track alignment and NSRs.

5.8.5                  Evaluation of Constraints on Planned Noise Sensitive Developments / Land Uses

5.8.5.1                With all practicable direct technical remedies in place, no additional measures within the planned noise sensitive uses would be required.

5.8.6                  Evaluation of Residual Rail Noise Impact

5.8.6.1                With the sufficient buffer distance and implementation of suitable track enhancement measures, rail noise impacts are not expected. Adverse residual noise impacts are therefore not anticipated. There would be no existing dwellings, classrooms and other noise sensitive elements that will be exposed to adverse residual noise impact exceeding the criteria set out in Annex 5 of the EIAO-TM.

5.9                         Conclusion

5.9.1.1                Construction noise associated with the use of PME for different stages of construction has been conducted. With the implementation of practical mitigation measures including good site management practices, use of movable noise barrier, full enclosure and retractable barrier, use of “quiet” plant and working method, construction noise impacts at all of the neighboring residential noise sensitive uses would be controlled to acceptable levels. For educational institutions, the construction noise impacts during school normal and examination periods would also comply with the relevant criteria.

5.9.1.2                Operational road traffic noise impact on planned and existing noise sensitive uses within the PDA have been predicted for the assessment year. Results indicate that the noise impacts can be mitigated by a combination of noise mitigation measures including 1) absorptive vertical barriers and cantilevered noise barriers along some sections of Project Roads and Kung Um Road; 2) LNRS on some road sections; 3) semi-enclosures or full enclosures at primary distributor roads at TYST Interchange and Kung Um Road; 4) nullah features / barriers along some sections of Yuen Long Nullah (Kiu Hing Road); 5) provision of acoustic windows for some planned public and private housing and 6) alternative building orientation for some planned schools to alleviate adverse traffic noise impact on the affected NSRs. These mitigation measures will also ensure that the noise levels caused by project roads are within the respective noise criteria.

5.9.1.3                For the existing road sections such as Kung Um Road, Sha Tseng Road and TYST Road, LNRS would be considered to address the existing noise impacts from existing roads. Different materials for LNRS are being reviewed and tested by the Government for application in Hong Kong. Environmental reviews will be conducted at the later design stage to review the proposed noise mitigation measures taking into account the latest design standard at that time for the application of the LNRS materials. Similar considerations are also applied for planned roads.

5.9.1.4                The proposed at-receiver mitigation measures i.e. the provision of acoustic windows for some planned public and private housing are subject to further study by HKHA and future private developers respectively. HKHA and future developers can further explore alternative options which can achieve corresponding traffic noise reduction during the detailed design stage.

5.9.1.5                There is scope for adoption of alternative noise mitigation measures, for example, by means of alternative layout and design of individual developments at the detailed design stage. Noise impact assessment at the planned residential sites is proposed to be conducted by future developers at the detailed design stage to study whether the future development layout would avoid exposing to excessive road traffic noise levels so as to minimise the scale and extent of the proposed noise mitigation measures such as noise barriers and special building design. The requirement of noise impact assessment would be included in the land lease condition or planning briefs of the residential sites.

5.9.1.6                In addition, Environmental Assessment Study (EAS) for the planned public housings will be conducted by Hong Kong Housing Authority (HKHA) in the detailed design stage according to HKPSG to address environmental impacts and to comply with relevant criteria.

5.9.1.7                Fixed noise sources impact assessment has been conducted.  Noise impact from planned fixed plant could be effectively mitigated by implementing noise mitigation measure at source during the detailed design stage. With the adoption of the proposed maximum permissible SWLs for the proposed fixed plant, the impact noise levels at representative NSRs complies with the relevant noise criteria for both existing and planned fixed noise sources. Therefore, adverse fixed noise sources impact on the NSRs is not anticipated.

5.9.1.8                An EFTS is proposed to be introduced to operate within the Project, which may be in the form of rail based mode of transport.  For conservative noise assessment, the rail based EFTS was assumed for rail noise impact assessment.  Results indicate that the noise impacts on NSRs would comply with the statutory requirement after considering some track enhancement measures such as embedded rail, green track with vegetation, etc. With the proposed of 10m buffer distance, the operation of EFTS would not pose adverse noise impact on the nearby NSRs.

5.10                   References

[5-1]    EPD (2010), EIA Ordinance Guidance Note No. 9/2010 on “Preparation of Construction Noise Impact Assessment Under the Environmental Impact Assessment Ordinance”.

[5-2]    EPD (2010), EIA Ordinance Guidance Note No. 12/2010 on “Road Traffic Noise Impact Under the Environmental Impact Assessment Ordinance”.