SA1 to Agreement No

Table 5.1 Representative Noise Sensitive Receivers and Assessment Points for Noise Impact Assessment

Noise Sensitive Receiver (NSR)	Existing / Planned Land Use	No. of Storeys	Height of the first Assessment Point (AP) (mPD)	AP ID	Location / Description	No. of Storeys	Operational Phase	Construction Phase
Sau Mau Ping (South) Estate	Residential	40	98.4	NSMP-101 ~ NSMP-103	Sau Mei House, Sau Mau Ping (South) Estate	40	ü	ü (NSMP-102 Only)
Po Tat Estate	Residential	35	141.2	NPTE-101 ~ NPTE-104	Block A Tat Hei House, Po Tat Estate	35	ü	ü (NPTE-102 Only)
				NPTE-201 ~ NPTE-205	Block B Tat Shun House, Po Tat Estate	35	ü	ü (NPTE-203 Only)
				NPTE-301 ~ NPTE-305	Block C Tat Kai House, Po Tat Estate	35	ü	ü (NPTE-303 Only)
				NPTE-401 ~ NPTE-405	Block D Tat Hin House, Po Tat Estate	35	ü	ü (NPTE-403 Only)
				NPTE-501 ~ NPTE-505	Block E Tat Kwai House, Po Tat Estate	35	ü	ü (NPTE-503 Only)
				NPTE-601 ~ NPTE-605	Block F Tat On House, Po Tat Estate	35	ü	ü (NPTE-603 Only)
Hong Wah Court	Residential	33-37	94.5	NHWC-101 ~ NHWC-112	Block C Chung Hong House, Hong Wah Court	33-37	ü	ü (NHWC-104 & NHWC-106 Only)
			94.5	NHWC-201 ~ NHWC-212	Block B Yee Hong House, Hong Wah Court	33-37	ü	ü (NHWC-204 & NHWC-207 Only)
			100.6	NHWC-301 ~ NHWC-312	Block A Wang Hong House, Hong Wah Court	33-37	ü	ü (NHWC-301 Only)
Hing Tin Estate	Residential	30	102.8	NHTE-101 ~ NHTE-116	Choi Tin House, Hing Tin Estate	30	ü	ü (NHTE-102, NHTE-105 & NHTE-111 Only)
			102.6	NHTE-201 ~ NHTE-212	Mei Tin House, Hing Tin Estate	30	ü	ü (NHTE-202, NHTE-205 & NHTE-211 Only)
			102.6	NHTE-301 ~ NHTE-312	Yan Tin House, Hing Tin Estate	30	ü	ü (NHTE-302 & NHTE-305 Only)
St. Edward’s Catholic Primary School	Educational	6	96.1	NSECP-101 ~ NSECP-104	St. Edward’s Catholic Primary School	6	ü	ü (NSECP-101 & NSECP-104 Only)
Lam Tin Estate	Residential	38	95.5	NLTE-101 ~ NLTE-102	Lam Fai House, Lam Tin Estate	38	ü	ü (NLTE-101 Only)
Tak Tin Estate	Residential	26	109.2	NTTE-101 ~ NTTE-103	Tak King House, Tak Tin Estate	26	ü	ü (NTTE-101 Only)
Tak Tin Estate	Residential	26	109.2	NTTE-104 ~ NTTE-106	Tak King House, Tak Lai Estate	26	ü	û
Good Hope School	Educational	4 to 8	115.9	NGHS-101	Good Hope School (Secondary Section)	6	ü	ü
			105.6	NGHS-201	Good Hope School (Primary Section)	4	ü	ü
			115.9	NGHS-301	Good Hope School (Secondary Section)	8	ü	ü
Choi Wan (I) & (II) Estate	Residential and GIC	4 to 25	65.1	NCWE-101 ~ NCWE104	Kai Fai House, Choi Wan (II) Estate	25	ü	ü (NCWE-101 Only)
			51.2	NCWE-201	Haven of Hope Integrated Vocational Rehabilitation Services Centre	4	ü	û
			85.3	NCWE-301 ~ NCWE-302	Fung Chak House, Choi Wan (II) Estate	20	ü	ü (NCWE-302 Only)
St Joseph's Anglo - Chinese School	Educational	8	67.2	NSJA-101	St Joseph's Anglo - Chinese School	8	ü	ü
Shun Lee Disciplined Services Quarters	Residential	40	145	NSLD-101 ~ NSLD-102	Block 8, Shun Lee Disciplined Services Quarters	40	ü	ü (NSLD-102 Only)
				NSLD-201 ~ NSLD-202	Block 7, Shun Lee Disciplined Services Quarters	40	ü	ü (NSLD-202 Only)
				NSLD-301 ~ NSLD-306	Block 6, Shun Lee Disciplined Services Quarters	40	ü	ü (NSLD-304 & NSLD-305 Only)
				NSLD-401 ~ NSLD-403	Block 5, Shun Lee Disciplined Services Quarters	40	ü	ü (NSLD-402 Only)
Shun Lee Disciplined Services Quarters	Residential	40	145	NSLD-404 ~ NSLD-406	Block 4, Shun Lee Disciplined Services Quarters	40	ü	ü (NSLD-405 Only)
				NSLD-501 ~ NSLD-504	Block 3, Shun Lee Disciplined Services Quarters	40	ü	ü (NSLD-502 & NSLD-503 Only)
				NSLD-601 ~ NSLD-602	Block 2, Shun Lee Disciplined Services Quarters	40	ü	ü (NSLD-601 Only)
				NSLD-701 ~ NSLD-702	Block 1, Shun Lee Disciplined Services Quarters	40	ü	ü (NSLD-701 Only)
ECF Saint Too Canaan College	Educational	8	118.0	NSTC-101 ~ NSTC-103	ECF Saint Too Canaan College	8	ü	ü (NSTC-103 Only)
United Christian College (Kowloon East)	Educational	6	119.3	NUCC-101	United Christian College (Kowloon East)	6	ü	ü
Society of Boys’ Centres Shing Tak Centre School	Educational	6	119.6	NSBC-101	Society of Boys’ Centres Shing Tak Centre School	6	ü	û
CCC Kei Shun Special School	Educational	6	114.7	NKSP-101 ~ NKSP-102	CCC Kei Shun Special School	6	ü	ü (NKSP-102 Only)
Shun Lee Estate	Residential	22 to 24	114.7	NSLE-101 ~ NSLE-107	Lee Hang House, Shun Lee Estate	24	ü	ü (NSLE-102 Only)
			114.4	NSLE-201 ~ NSLE-207	Lee Ming House, Shun Lee Estate	22	ü	ü (NSLE-202 Only)
			125.3	NSLE-301 ~ NSLE-303	Lee Cheung House, Shun Lee Estate	24	ü	ü (NSLE-302 Only)
Shun Chi Court	Residential	16	131.6	NSCC-101 ~ NSCC-104	Shun Fung House, Shun Chi Court	16	ü	ü (NSCC-102 Only)
			124	NSCC-201 ~ NSCC-202	Shun Cheung House, Shun Chi Court	16	ü	û
			124.1	NSCC-301 ~ NSCC-302	Shun Hong House, Shun Chi Court	16	ü	ü (NSCC-301 Only)
Kwun Tong Government Secondary School	Educational	6	126.8	NKTG-101 ~ NKTG-102	Kwun Tong Government Secondary School	6	ü	ü (NKTG-101 Only)
Shun Lee Catholic Secondary School	Educational	6	126.8	NSLC-101 ~ NSLC-102	Shun Lee Catholic Secondary School	6	ü	ü (NSLC-101 Only)
Fei Ngo Shan Rd & Sienna Garden	Residential	3	197.9	NFNS-101	Fei Ngo Shan Road	3	ü	ü
			178.0	NFNS-201~ NFNS-202	Block 4, Sienna Garden	3	ü	ü (NFNS-202 Only)
			181.6	NFNS-301	Block 6, Sienna Garden	3	ü	û
			181.6	NFNS-302	Block 7, Sienna Garden	3	ü	ü
Tai Pan Court	Residential	3	192.3	NTPC-101	Block 3, Tai Pan Court	3	ü	ü
Tai Pan Court	Residential	3	192.3	NTPC-201	Block 2, Tai Pan Court	3	ü	ü
9-11 Anderson Road	Residential	3	185.7	NLEP-01	9-11 Anderson Road	3	ü	ü
Planned School at Choi Hing Road	Planned Educational	6	81	NCHR-101 ~ NCHR-102	Planned School at Choi Hing Road	6	ü	ü (NCHR -102 Only)

Note:

ü Selected for assessment; û Not selected for assessment

5.5 Identification of Environmental Impacts

Construction Noise

5.5.1 The construction of the Project would commence in late 2016 and be completed in early 2022 and the construction period would be around 60 months. Based on the currently envisaged construction programme, potential construction noise impacts may arise from the following key construction activities of the Project:

· excavation;

· slope cutting;

· backfilling;

· foundation works; and

· formation of carriageway and road pavement construction.

5.5.2 These construction activities will involve the use of PME such as piling rigs, breakers, excavators, lorries, mobile cranes, concrete truck mixers, pokers, rollers, etc. The PME adopted for the assessment are detailed in Appendix 5.3. Appendix 5.4 presents the work programme, locations of the work sites and distances between the notional sources and the NSRs.

5.5.3 During the construction of the Project, a number of projects in the vicinity of the Project may have construction activities that occur concurrently with those of the Project. These have been reviewed with respect to the potential of cumulative impacts and the findings are as follows:

· Development at Anderson Road (DAR) – referring to CEDD website[1] (see Appendix 5.14), the construction works of DAR would be completed in mid 2016, and therefore would not give rise to cumulative impacts for all three RIWs. DAR is not considered a concurrent project in this assessment.

· Site formation and infrastructure works of ARQ Site Development and Pedestrian Connectivity - reference is made to the approved Schedule 3 EIA Report (EIAO Register No.: AEIAR-183/2014):

- For J/O Clear Water Bay Road and On Sau Road RIW and J/O New Clear Water Bay Road and Shun Lee Tsuen Road RIW, all the work sites are outside the 300m Study Area (see Figure 5.1). Cumulative noise impact from these concurrent works is not considered.

- For Sau Mau Ping Road and Lin Tak Road RIW, the cumulative noise impact under mitigated scenario associated with the construction worksites within the 300m Study Area (see Figure 5.2) are taken into account in the cumulative impact assessment.

· Proposed Rock Cavern Development within ARQ – the work sites are outside the 300m Study Area of all three RIWs. Cumulative noise impact from this concurrent project is not considered (see Figure 5.1 and Figure 5.2).

5.5.4 As there are no construction activities involving blasting, construction ground-borne noise impacts are not anticipated.

Operational Road Traffic Noise

5.5.5 Road traffic noise from the road network within the Study Area, including both the “Project roads” and the Other Roads, would be the major noise source during the operational phase. "Project roads" refers to the road sections within the meaning of Item A.1 of Schedule 2 of the EIAO. All road sections other than the “Project roads” as defined above are regarded as Other Roads in this assessment.

5.6 Assessment Methodologies

Construction Noise

5.6.1 The construction activities of the Project taking place concurrently within 300m of a given NSR are considered to contribute to the cumulative impacts at that NSR. Notional noise sources of both the Project itself and the concurrent projects mentioned in Section 5.5.3 beyond the 300m were excluded from the assessment.

5.6.2 The assessment of construction noise was undertaken based on standard acoustic principles. Sound Power Levels (SWLs) of powered mechanical equipment (PME) were taken from Table 3 of the Technical Memorandum on Noise from Construction Work other than Percussive Piling (GW-TM) issued under the NCO. Where no SWL is provided in the GW-TM, reference was made to British Standard BS5228 “Code of practice for noise and vibration control on construction and open sites”, Part 1 or other previous similar studies or from measurements taken at other sites in Hong Kong. The availability in Hong Kong of the PME adopted for this assessment was confirmed by the Project Engineer who is responsible for the design and supervision of construction works of the Project. A positive 3 dB façade correction was applied to the predicted noise levels to account for the façade effect at each noise assessment point.

Operational Road Traffic Noise

5.6.3 Road traffic noise was predicted based on the traffic flows, following strictly the procedures stipulated in the “Calculation of Road Traffic Noise (CRTN)” (1988) published by Department of Transport, UK. Road traffic noise was presented in terms of noise levels exceeded for 10% of the one-hour period having the peak traffic flow (i.e. L₁₀, 1hour, dB(A)).

5.6.4 The RIW for J/O Clear Water Bay Road and On Sau Road and J/O New Clear Water Bay Road and Shun Lee Tsuen Road are anticipated to be commissioned in 2020 and that for Sau Mau Ping Road and Lin Tak Road in 2022. The assessment year of unmitigated and mitigated scenarios was determined on the basis of peak hour traffic flow projected within a period of 15 years following commencement of operation of the Project.

5.6.5 The variations in traffic over the 15-year period are consistent for the three RIWs, with a gradual rise up to the opening of East Kowloon Line (EKL), then a slight drop followed by another gradual increase up to the 15th year after completion of the respective RIWs (i.e. 2035 for New Clear Water Bay Road and Clear Water Bay Road, and 2037 for Lin Tak Road/Sau Mau Ping Road). Considering that the EKL could be opened in any one year between 2026 and 2031, the worst-case year for road traffic is determined as follows:

· There will be a drop in road traffic upon the opening of EKL. As a result, peaks of traffic will be observed at the year just before the opening of EKL and the 15th year after completion of the respective RIWs (i.e. 2035 for J/O Clear Water Bay Road/On Sau Road and J/O New Clear Water Bay Road/Shun Lee Tsuen Road, and 2037 for Sau Mau Ping Road/Lin Tak Road);

· The peak at the 15th year after completion of the respective RIWs (i.e. 2035 for J/O Clear Water Bay Road/On Sau Road and J/O New Clear Water Bay Road/Shun Lee Tsuen Road, and 2037 for Sau Mau Ping Road/Lin Tak Road) are anticipated to be similar regardless of which year between 2026 and 2031 EKL will commence operation.

· Among all possible cases (i.e. EKL opening in 2026, 2027, 2028, 2029, 2030 or 2031), EKL opening in 2031 will result in the highest peak traffic in the year just before its opening, i.e. 2030.

· Given that the above-mentioned highest peak traffic at 2030 with EKL opening in 2031 will still be higher than the peak traffic at the 15th year after completion of the respective RIWs (i.e. 2035 for J/O Clear Water Bay Road/On Sau Road and J/O New Clear Water Bay Road/Shun Lee Tsuen Road, and 2037 for Sau Mau Ping Road/Lin Tak Road), 2030 was considered to represent the worst year in terms of road traffic for all three RIWs.

5.6.6 The Peak Traffic Flow with and without the Project in 2030 is shown in Appendix 5.5. Transport Department (TD) has no comment on the traffic forecast adopted in this EIA study. The TD’s letter is enclosed in Appendix 5.5.

5.6.7 In summary, the following years of projected peak hour traffic flow and vehicles compositions were adopted in the assessment:

· Worst-case year with the Project: 2030 (assuming completion of the RIWs in the Project in 2020 and 2022, respectively, and commissioning of EKL in 2031); and

· Worst-case year without the Project: 2030.

5.6.8 For the purpose of the traffic noise assessment in the EIA, the roads within 300m from the proposed project alignment were included in the assessment. Road-plots of the traffic noise model with the extent of Project Roads are depicted in Figure 5.3.

5.6.9 Traffic speeds adopted in the noise model for with the Project Scenario are summarised as follows:

(a) New Clear Water Bay Road (eastbound only), Clear Water Bay Road and Tseung Keung O Tunnel Road: 70 km per hour; and

(b) Concerned roads other than those listed in (a) above: 50 km per hour.

5.6.10 In the without Project Scenario, except the traffic speed on the westbound of New Clear Water Bay Road fronting Shun Lee Disciplined Services Quarters (20 km per hour), all other traffic speeds would be same as those in the with Project Scenario.

5.6.11 Consideration of noise mitigation measures follows Annex 13 to EIAO-TM and EIAO Guidance Note “Road Traffic Noise Impact Assessment under the Environmental Impact Assessment Ordinance” [GN 12/2010].

5.6.12 Under with the Project scenario, direct mitigation measures were proposed in all situations where:

· the predicted traffic noise level due to the Project Roads, exceeds the criteria in Table 1A of Annex 5 to the EIAO-TM; or

· If the NSRs are affected by noise from the Other Roads, direct mitigation measures are required to reduce the noise from the Project Roads to a level that

(i) is not higher than the noise standard; and

(ii) has no significant contribution (less than 1.0 dB(A)) to the cumulative noise level, if the cumulative noise level (i.e. noise from the Project Roads together with Other Roads) exceeds the noise standard.

5.6.13 If any façades of NSRs are still exposed to predicted noise levels exceeding the relevant noise criteria after the implementation of all direct mitigation measures, provision of indirect technical remedies in the form of acoustic insulation and air conditioning should be considered under the EIAO-TM. The eligibility for indirect technical remedies would be tested against the following three criteria:

· The predicted overall noise level from the Project Roads, together with other traffic noise in the vicinity must be above a specified noise level (for example, 70 dB(A) for domestic premises and 65 dB(A) for educational institutions. All are in L₁₀ (1hour));

· The predicted overall noise level is at least 1.0 dB(A) more than the prevailing traffic noise level which is the existing traffic noise level before the construction of the Project Roads; and

· The contribution to the increase in the predicted overall noise level from the Project Roads must be at least 1.0 dB(A).

5.7 Prediction and Evaluation of Environmental Impacts

Construction Noise

5.7.1 For normal daytime working hours, exceedances of the construction noise criteria (L_eq_(30-min) 75 dB(A) for residential uses and 70 dB(A) for educational institutions (65 dB(A) during examinations)) are predicted at representative NSRs in the absence of mitigation measures. Details of the construction noise calculations and results for the unmitigated scenario are presented in Appendix 5.6.

5.7.2 A summary of the unmitigated construction noise levels at the representative NSRs during normal daytime working hours within the construction period of the Project is listed in Table 5.2. Noise mitigation measures would therefore be required to reduce noise levels at the NSRs for compliance with the noise standard.

Table 5.2 Summary of Cumulative Unmitigated Construction Noise Levels at Representative NSRs during Normal Daytime Working Hours

Site	Name	AP ID	Noise Criterion, dB(A)	Predicted Unmitigated Construction Noise Levels during Normal Daytime Working Hour, Leq (30-min), dB(A)	Duration of Exceedance (Months)
J/O Clear Water Bay Road and On Sau Road	Fei Ngo Shan Road	NFNS-101	75	59 ~ 86	12
	Sienna Garden	NFNS-202	75	69 ~ 95	35
	Sienna Garden	NFNS-302	75	72 ~ 94	36
	Tai Pan Court	NTPC-101	75	70 ~ 87	29
	Tai Pan Court	NTPC-201	75	67 ~ 87	24
	Kwun Tong Government Secondary School	NKTG-101	70 (65)	66 ~ 81	45
	9-11 Anderson Road	NLEP-01	75	65 ~ 81	11
	Shun Chi Court	NSCC-102	75	65 ~ 80	9
	Shun Chi Court	NSCC-301	75	59 ~ 80	8
	Shun Lee Catholic Secondary School	NSLC-101	70 (65)	58 ~ 81	36
J/O New Clear Water Bay Road and Shun Lee Tsuen Road	St Joseph's Anglo - Chinese School	NSJA-101	70 (65)	59 ~ 76	9
	Shun Lee Disciplined Services Quarters	NSLD-102	75	60 ~ 81	6
		NSLD-202	75	60 ~ 84	17
		NSLD-304	75	61 ~ 89	26
		NSLD-305	75	60 ~ 88	24
		NSLD-402	75	59 ~ 86	23
		NSLD-405	75	58 ~ 88	18
		NSLD-502	75	57 ~ 89	19
		NSLD-503	75	60 ~ 89	16
		NSLD-601	75	60 ~ 83	9
		NSLD-701	75	60 ~ 79	1
	Shun Lee Estate	NSLE-102	75	66 ~ 86	29
		NSLE-202	75	63 ~ 87	27
		NSLE-302	75	61 ~ 80	8
	ECF Saint Too Canaan College	NSTC-103	70 (65)	63 ~ 79	31
	United Christian College (Kowloon East)	NUCC-101	70 (65)	61 ~ 80	33
	Choi Wan (I) & (II) Estate	NCWE-101	75	60 ~ 78	1
	Choi Wan (I) & (II) Estate	NCWE-302	75	59 ~ 75	0
	Good Hope School	NGHS-101	70 (65)	62 ~ 76	12
		NGHS-201	70 (65)	61 ~ 77	11
		NGHS-301	70 (65)	62 ~ 77	16
	Planned School at Choi Hing Road	NCHR-102	70 (65)	62 ~ 80	12
	CCC Kei Shun Special School	NKSP-102	70 (65)	64 ~ 83	48
Sau Mau Ping Road/Lin Tak Road	Po Tat Estate	NPTE-102	75	57 ~ 79	8
		NPTE-203	75	55 ~ 79	12
		NPTE-303	75	53 ~ 80	18
		NPTE-403	75	51 ~ 78	13
		NPTE-503	75	63 ~ 78	10
		NPTE-603	75	61 ~ 77	3
	Sau Mau Ping (South) Estate	NSMP-102	75	55 ~ 75	0
	Hing Tin Estate	NHTE-102	75	60 ~ 84	34
		NHTE-105	75	61 ~ 89	31
		NHTE-111	75	58 ~ 80	24
		NHTE-202	75	58 ~ 84	33
		NHTE-205	75	59 ~ 85	25
		NHTE-211	75	58 ~ 80	15
		NHTE-302	75	62 ~ 83	24
		NHTE-305	75	63 ~ 83	24
	Hong Wah Court	NHWC-104	75	59 ~ 86	40
		NHWC-106	75	60 ~ 89	36
		NHWC-204	75	57 ~ 90	46
		NHWC-207	75	58 ~ 85	46
		NHWC-301	75	63 ~ 90	41
	Lam Tin Estate	NLTE-101	75	59 ~ 73	0
	St. Edward’s Catholic Primary School	NSECP-101	70 (65)	58 ~ 81	35
	St. Edward’s Catholic Primary School	NSECP-104	70 (65)	59 ~ 79	36
	Tak Tin Estate	NTTE-101	75	58 ~ 82	24

Operational Road Traffic Noise

5.7.3 The traffic noise levels at the sensitive facades of the chosen representative existing and planned NSRs were calculated in accordance with the CRTN procedures.

5.7.4 The predicted traffic noise levels at the representative NSRs under the unmitigated scenario are shown in Appendix 5.7, which also provides the breakdown of noise contributions from the Project Roads and Other Roads at the representative NSRs. Road-plots of the traffic noise model showing the road segments, barriers and assessment points of sensitive receivers are also presented in Appendix 5.8.

5.7.5 Without noise mitigation measures in place, the predicted L10 noise levels in the worst-case year 2030 would be in the range of 49 to 82 dB(A). Table 5.3 shows the unmitigated traffic noise levels in Year 2030. The predicted unmitigated noise levels in Year 2030 due to the Project roads only would still exceed the EIAO noise criteria at some NSRs such as Sienna Garden, CCC Kei Shun Special School, Shun Lee Disciplined Services Quarters, Shun Lee Estate, and ECF Saint Too Canaan College. This constitutes non-compliance with the first criterion listed in Section 5.6.11, and therefore direct noise mitigation measures are required to mitigate road traffic noise impact from the Project Roads.

Table 5.3 Summary of Unmitigated Road Traffic Noise Assessment Results

NSR	Assessment Point ID	Uses ⁽¹⁾	Noise Criteria, dB(A)	Predicted Noise Level from Project Roads, L_10(1-hr), dB(A)	Predicted Overall Noise Level, L_10(1-hr), dB(A)	Contribution from Project Roads, L_10(1-hr), dB(A)	Direct Mitigation Measures Required? ⁽²⁾
*J/O Clear Water Bay Road and On Sau Road*
Fei Ngo Shan Road Residential	NFNS-101	R	70	62 ~ 63	72 ~ 74	0.4 ~ 0.5	No
Sienna Garden	NFNS-201 ~ NFNS-202	R	70	63 ~ 74	66 ~ 77	2.2 ~ 3.0	Yes
Sienna Garden	NFNS-301 ~ NFNS-302	R	70	72	75 ~ 76	2.5 ~ 2.7	Yes
9-11 Anderson Road	NLEP-01	R	70	63 ~ 64	72 ~ 73	0.5 ~ 0.6	No
Shun Chi Court	NSCC-101 ~ NSCC-104	R	70	47 ~ 64	52 ~ 69	0.6 ~ 1.9	No
	NSCC-201 ~ NSCC-202	R	70	42 ~ 57	51 ~ 65	0.1 ~ 0.8	No
	NSCC-301 ~ NSCC-302	R	70	46 ~ 63	59 ~ 72	0.1 ~ 0.7	No
Tai Pan Court	NTPC-101 & NTPC-201	R	70	60 ~ 68	71 ~ 74	0.2 ~ 1.6	Yes
*J/O New Clear Water Bay Road and Shun Lee Tsuen Road*
Planned School at Choi Hing Road	NCHR-101 ~ NCHR-102	E	65	38 ~ 55	48 ~ 73	0.0 ~ 0.4	No
Choi Wan (I) & (II) Estate	NCWE-101 ~ NCWE-104	R	70	60 ~ 65	74 ~ 81	0.0 ~ 0.4	No
	NCWE-201	R	70	48 ~ 49	81 ~ 82	0	No
	NCWE-301 ~ NCWE-302	R	70	52 ~ 62	72 ~ 77	0.0 ~ 0.4	No
Good Hope School	NGHS-101, NGHS-201 & NGHS-301	E	65	37 ~ 60	60 ~ 72	0.0 ~ 0.5	No
CCC Kei Shun Special School	NKSP-101 & NKSP-102	E	65	69 ~ 71	74 ~ 77	1.3 ~ 2.2	Yes
Kwun Tong Government Secondary School	NKTG-101 & NKTG-102	E	65	46 ~ 55	55 ~ 60	0.6 ~ 1.6	No
Society of Boys’ Centres Shing Tak Centre School	NSBC-101	E	65	47	76	0	No
St Joseph's Anglo - Chinese School	NSJA-101	E	65	61 ~ 62	76	0.1 ~ 0.2	No
Shun Lee Catholic Secondary School	NSLC-101 ~ NSLC-102	E	65	51 ~ 55	57 ~ 62	0.9 ~ 1.3	No
Shun Lee Disciplined Services Quarters	NSLD-101 ~ NSLD-102	R	70	64 ~ 66	70 ~ 74	0.5 ~ 1.1	Yes
	NSLD-201 ~ NSLD-202	R	70	65 ~ 68	71 ~ 76	0.7 ~ 1.2	Yes
	NSLD-301 ~ NSLD-306	R	70	62 ~ 71	70 ~ 78	0.2 ~ 1.2	Yes
Shun Lee Disciplined Services Quarters	NSLD-401 ~ NSLD-406	R	70	56 ~ 68	74 ~ 78	0.0 ~ 0.6	No
	NSLD-501 ~ NSLD-504	R	70	54 ~ 67	74 ~ 80	0.0 ~ 0.4	No
	NSLD-601 ~ NSLD-602	R	70	60 ~ 63	73 ~ 77	0.1 ~ 0.3	No
	NSLD-701 ~ NSLD-702	R	70	60 ~ 61	73 ~ 76	0.1 ~ 0.3	No
Shun Lee Estate	NSLE-101 ~ NSLE-107	R	70	66 ~ 73	71 ~ 78	0.9 ~ 1.8	Yes
	NSLE-201 ~ NSLE-207	R	70	54 ~ 74	68 ~ 78	0.1 ~ 2.1	Yes
	NSLE-301 ~ NSLE-303	R	70	46 ~ 62	64 ~ 77	0.0 ~ 0.5	No
ECF Saint Too Canaan College	NSTC-101 ~ NSTC103	E	65	53 ~ 66	69 ~ 73	0.0 ~ 1.1	Yes
United Christian College (Kowloon East)	NUCC-101	E	65	46 ~ 58	73 ~ 74	0.0 ~ 0.1	No
*J/O Sau Mau Ping Road/Lin Tak Road*
Hing Tin Estate	NHTE-101 ~ NHTE-116	R	70	0 ~ 63	60 ~ 78	0.0 ~ 2.2	No
	NHTE-201 ~ NHTE-212	R	70	0 ~ 62	58 ~ 76	0.0 ~ 0.9	No
	NHTE-301 ~ NHTE-312	R	70	0 ~ 56	53 ~ 77	0.0 ~ 0.3	No
Hong Wah Court	NHWC-101 ~ NHWC-112	R	70	0 ~ 66	58 ~ 81	0.0 ~ 0.7	No
	NHWC-201 ~ NHWC-212	R	70	0 ~ 70	64 ~ 77	0.0 ~ 1.8	Yes
	NHWC-301 ~ NHWC-312	R	70	0 ~ 62	59 ~ 78	0.0 ~ 1.3	No
Lam Tin Estate	NLTE-101 ~ NLTE-102	R	70	< 40	69 ~ 71	0	No
Po Tat Estate	NPTE-101 ~ NPTE-104	R	70	36 ~ 65	60 ~ 74	0.0 ~ 1.8	Yes
	NPTE-201 ~ NPTE-205	R	70	15 ~ 67	60 ~ 74	0.0 ~ 1.9	Yes
	NPTE-301 ~ NPTE-305	R	70	51 ~ 69	64 ~ 75	0.1 ~ 1.6	Yes
	NPTE-401 ~ NPTE-405	R	70	61 ~ 68	71 ~ 74	0.4 ~ 2.1	Yes
	NPTE-501 ~ NPTE-505	R	70	57 ~ 67	71 ~ 74	0.2 ~ 1.3	Yes
	NPTE-601 ~ NPTE-605	R	70	52 ~ 65	70 ~ 74	0.0 ~ 0.9	No
St. Edward’s Catholic Primary School	NSECP-101 ~ NSECP-104	E	65	< 40	48 ~ 73	0	No
Sau Mau Ping Estate	NSMP-101 ~ NSMP-103	R	70	45 ~ 59	72 ~ 78	0.0 ~ 0.2	No
Tak Tin Estate	NTTE-101 ~ NTTE-106	R	70	< 40	70 ~ 77	0	No

Notes:

(1) R – Residential Uses; E – Educational Uses.

(2) Direct mitigation measures are required if (a) Contribution of noise level from Project roads only > noise standards under EIAO-TM; or (b) overall noise level> noise standards under EIAO-TM, and difference between overall noise levels and noise levels of Other Roads ≥ 1.0 dB(A)

Road Improvement Works at Lin Tak Road and Sau Mau Ping Road

5.7.6 Some of the existing NSRs such as Po Tat Estate and Hong Wah Court are predicted to experience noise levels above the noise criterion due to the Project Roads and Other Roads such as Sau Mau Ping Road and Tseung Kwan O Tunnel Road. At some of the NSRs at Po Tat Estate and Hong Wah Court, the unmitigated overall noise levels are predicted to be above the EIAO-TM noise standards and the contribution of the traffic noise impact arising from the Project is considered significant (i.e. more than 1.0 dB(A)), mitigation measures in the form of roadside noise barriers and semi-enclosure are therefore required on the Project Roads. The proposed noise mitigation measures are shown in Figure 5.4 and detailed in Section 5.8.6.

5.7.7 Addition of lay-bys on Lin Tak Road is proposed to improve passenger drop-off. The modification of this section of Lin Tak Road will require realignment toward the south to accommodate the lay-bys. Moreover, the existing roundabout at the junction of Lin Tak Road and Pik Wan Road is proposed to be enlarged to improve its flow of traffic and performance but the existing one entry lane and one circulation lane configuration will be maintained. The projected traffic volume on this section of Lin Tak Road and the roundabout will however remain unchanged. It is therefore considered that no material change is introduced to this section of Lin Tak Road and the roundabout. As a result, no mitigation measures are proposed for this section of Lin Tak Road and the roundabout.

Road Improvement Works at J/O Clear Water Bay Road and On Sau Road

5.7.8 The results indicate that the unmitigated overall road traffic noise levels at Sienna Garden and Tai Pan Court facing this section of Clear Water Bay Road would exceed the noise criteria.

5.7.9 The contribution of the traffic noise impact arising from the Project is considered significant (i.e. more than 1.0 dB(A)) and the predicted noise levels from the Project Roads are above the relevant traffic noise criteria. As the noise exceedances are caused by the Project Roads, direct mitigation measures in the form of cantilevered barriers and semi-enclosure are required on the Project Roads as shown in Figure 5.5 and detailed in Section 5.8.6. .

Road Improvement Works at J/O New Clear Water Bay Road and Shun Lee Tsuen Road

5.7.10 The results indicate that the unmitigated overall road traffic noise levels at CCC Kei Shun Special School, Shun Lee Estate and Shun Lee Disciplined Services Quarters facing this section of New Clear Water Bay Road would exceed the noise criteria. Moreover, the noise contributions due to the Project Roads are considered significant (more than 1.0 dB(A)) at these NSRs. Direct noise mitigation measures in the form of cantilevered barriers and full-enclosure are proposed on the Project Roads to mitigate noise impact to the concerned NSRs. The configuration of these proposed mitigation measures are shown in Figure 5.6 and detailed in Section 5.8.6.

5.8 Mitigation of Environmental Impacts

Construction Noise

Adoption of Quiet PME

5.8.1 To reduce the noise impacts at the affected NSRs during normal daytime working hours, mitigation measures such as adopting quiet PME and construction noise barriers are recommended. The type of quiet PME adopted in this assessment is for reference only. The contractors may adopt alternative quiet PME as long as it can be demonstrated that they would not result in construction noise impacts worse than those predicted in this assessment.

5.8.2 For the use of quiet plant associated with the construction works, reference has been made to the QPME list available on the EPD website, which contains the SWLs for specific quiet PME. The SWLs for quiet PME adopted for the assessment are detailed in Appendix 5.9. Where the predicted construction noise level exceeds the criteria in Table 1B of Annex 5 to EIAO-TM, direct mitigation measures including noise barriers, enclosures, quieter alternative methods, re-scheduling, restricting hours of operation of noisy tasks, etc. have been adopted. The assumed utilisation rates of PME adopted as well as the feasibility, practicability, programming and effectiveness of the recommended mitigation measures have been confirmed by the Project Engineer.

Construction Noise Barriers

5.8.3 To alleviate the construction noise impact on the affected NSRs, construction noise barriers or enclosures would be erected to provide screening from the construction plant. For a conservative assessment, a reduction of only 5 dB is assumed for construction noise barriers with the typical configuration shown in Figure 5.7. The use of full enclosure has been considered in this assessment to shelter relatively static plant such as air compressor, generator. These enclosures can provide about 10 dB noise reduction. Acoustic mat would be used for other PME such as piling rig, oscillator and reverse circulation drill and a 10 dB noise reduction is anticipated. A catalogue of the acoustic mat is attached in Appendix 5.10 as a reference.

5.8.4 Provisioning of construction noise barriers has been considered at the Sienna Garden to cater for this critical NSR, which is located extremely close to works activities. The location of these noise barriers are depicted in Figure 5.8. As a conservative approach, a screening effect of 5 dB due to the construction noise barrier is assumed in the assessment.

5.8.5 Noise reduction from the use of mitigation measures including quiet plant, construction noise barriers and enclosures as described above has been applied in the assessment. Detailed results of construction noise assessment for “mitigated” scenario are given in Appendix 5.11. The predicted cumulative noise levels and the exceedances of the daytime construction noise criteria are summarised in Table 5.4.

Table 5.4 Summary of Cumulative Mitigated Construction Noise Levels at Representative NSRs during Normal Daytime Working Hours

Site	Name	AP ID	Noise Criterion, dB(A)	Predicted Mitigated Construction Noise Levels during Normal Daytime Working Hour, Leq (30-min), dB(A)	Duration of Exceedance (Months) ^{(1) (2)}
J/O Clear Water Bay Road and On Sau Road	Fei Ngo Shan Road	NFNS-101	75	48 ~ 73	-
	Sienna Garden	NFNS-202	75	56 ~ 78	2 (1 dB(A) of Exceedance) 2 (2 dB(A) of Exceedance) 5 (3 dB(A) of Exceedance)
	Sienna Garden	NFNS-302	75	58 ~ 79	1 (1 dB(A) of Exceedance) 3 (2 dB(A) of Exceedance) 3 (3 dB(A) of Exceedance) 2 (4 dB(A) of Exceedance)
	Tai Pan Court	NTPC-101	75	58 ~ 75	-
	Tai Pan Court	NTPC-201	75	55 ~ 72	-
	Kwun Tong Government Secondary School	NKTG-101	70 (65)	56 ~ 68	1 (1 dB(A) of Exceedance during Examination Period) 1 (3 dB(A) of Exceedance during Examination Period)
	9-11 Anderson Road	NLEP-01	75	54 ~ 66	-
	Shun Chi Court	NSCC-102	75	54 ~ 66	-
	Shun Chi Court	NSCC-301	75	52 ~ 67	-
	Shun Lee Catholic Secondary School	NSLC-101	70 (65)	50 ~ 68	1 (1 dB(A) of Exceedance during Examination Period) 1 (3 dB(A) of Exceedance during Examination Period)
J/O New Clear Water Bay Road and Shun Lee Tsuen Road	St Joseph's Anglo - Chinese School	NSJA-101	70 (65)	49 ~ 61	-
	Shun Lee Disciplined Services Quarters	NSLD-102	75	52 ~ 67	-
		NSLD-202	75	53 ~ 70	-
		NSLD-304	75	53 ~ 74	-
		NSLD-305	75	52 ~ 73	-
		NSLD-402	75	51 ~ 71	-
		NSLD-405	75	50 ~ 72	-
		NSLD-502	75	50 ~ 73	-
		NSLD-503	75	53 ~ 73	-
		NSLD-601	75	53 ~ 68	-
		NSLD-701	75	52 ~ 64	-
	Shun Lee Estate	NSLE-102	75	54 ~ 73	-
		NSLE-202	75	52 ~ 77	1 (2 dB(A) of Exceedance)
		NSLE-302	75	54 ~ 67	-
	ECF Saint Too Canaan College	NSTC-103	70 (65)	53 ~ 65	-
	United Christian College (Kowloon East)	NUCC-101	70 (65)	53 ~ 66	-
	Choi Wan (I) & (II) Estate	NCWE-101	75	50 ~ 63	-
	Choi Wan (I) & (II) Estate	NCWE-302	75	49 ~ 60	-
	Good Hope School	NGHS-101	70 (65)	51 ~ 62	-
		NGHS-201	70 (65)	50 ~ 62	-
		NGHS-301	70 (65)	53 ~ 62	-
	Planned School at Choi Hing Road	NCHR-102	70 (65)	52 ~ 65	-
	CCC Kei Shun Special School	NKSP-102	70 (65)	56 ~ 71	1 (1 dB(A) of Exceedance during Normal School Period) 4 (1 dB(A) of Exceedance during Examination Period) 2 (3 dB(A) of Exceedance during Examination Period) 1 (4 dB(A) of Exceedance during Examination Period) 1 (5 dB(A) of Exceedance during Examination Period)
Sau Mau Ping Road/Lin Tak Road	Po Tat Estate	NPTE-102	75	52 ~ 68	-
		NPTE-203	75	53 ~ 68	-
		NPTE-303	75	53 ~ 69	-
		NPTE-403	75	51 ~ 67	-
		NPTE-503	75	55 ~ 66	-
		NPTE-603	75	54 ~ 65	-
	Sau Mau Ping (South) Estate	NSMP-102	75	49 ~ 64	-
	Hing Tin Estate	NHTE-102	75	49 ~ 73	-
		NHTE-105	75	51 ~ 78	1 (1 dB(A) of Exceedance) 3 (3 dB(A) of Exceedance)
		NHTE-111	75	50 ~ 68	-
		NHTE-202	75	47 ~ 72	-
		NHTE-205	75	48 ~ 74	-
		NHTE-211	75	50 ~ 68	-
		NHTE-302	75	51 ~ 71	-
		NHTE-305	75	52 ~ 71	-
	Hong Wah Court	NHWC-104	75	51 ~ 74	-
		NHWC-106	75	52 ~ 77	1 (1 dB(A) of Exceedance) 3 (2 dB(A) of Exceedance)
		NHWC-204	75	49 ~ 79	1 (1 dB(A) of Exceedance) 4 (2 dB(A) of Exceedance) 3 (3 dB(A) of Exceedance) 6 (4 dB(A) of Exceedance)
		NHWC-207	75	50 ~ 75	-
		NHWC-301	75	53 ~ 79	5 (1 dB(A) of Exceedance) 2 (2 dB(A) of Exceedance) 3 (4 dB(A) of Exceedance)
	Lam Tin Estate	NLTE-101	75	48 ~ 62	-
	St. Edward’s Catholic Primary School	NSECP-101	70 (65)	47 ~ 70	1 (1 dB(A) of Exceedance during Examination Period) 2 (2 dB(A) of Exceedance during Examination Period) 1 (5 dB(A) of Exceedance during Examination Period)
	St. Edward’s Catholic Primary School	NSECP-104	70 (65)	48 ~ 68	1 (3 dB(A) of Exceedance during Examination Period)
	Tak Tin Estate	NTTE-101	75	47 ~ 71	-

Note:

(1) Normal teaching period is assumed to be held in September of each year to July of the following year.

(2) Typical examination periods occur in the months of May, June, November and December. The exceedance duration indicated is during examination periods.

Operational Road Traffic Noise

5.8.6 As mentioned in Section 5.7, direct mitigation measures are proposed on the Project Roads such that the noise level would be reduced to fulfil the EIAO requirements. The proposed direct mitigation measures, which will be designed and built according to “Guidelines on Design of Noise Barriers” (jointly issued by Highways Department and Environmental Protection Department), for the NSRs are shown in Figures 5.4 to 5.6 and summarized below:

At Sau Mau Ping Road and Lin Tak Road

· SE1: about 59m of 7m tall semi-enclosure provided on Sau Mau Ping Road (shown in Figure 5.4 (Sheet 1 of 2));

· CT1: about 97m of 7m tall cantilevered noise barrier with 3.5m long cantilever (at 45°) on Sau Mau Ping Road (shown in Figure 5.4 (Sheet 1 of 2));

· CT2: about 77m of 5.5m tall cantilevered noise barrier with 3.5m long cantilever (at 30°) on Sau Mau Ping Road (shown in Figure 5.4 (Sheet 1 of 2));

· CT3: about 91m of 5.5m tall cantilever noise barrier with 3.5m long cantilever (at 45°) on Lin Tak Road flyover (shown in Figure 5.4 (Sheet 1 of 2)).

· VB1: about 92m of 3m vertical noise barrier on Sau Mau Ping Road (shown in Figure 5.4 (Sheet 1 of 2))

At J/O Clear Water Bay Road and On Sau Road and J/O Clear Water Bay Road and New Clear Water Bay Road

· CT4: about 24m of 7m tall cantilevered noise barrier with 3.5m long cantilever (at 45°) on Clear Water Bay Road /On Sau Road (shown in Figure 5.5);

· SE2: about 146m of 7m tall semi-enclosure provided on Clear Water Bay Road /On Sau Road (shown in Figure 5.5);

At New Clear Water Bay Road and Shun Lee Tsuen Road

· FE1: about 130m of 7m tall full-enclosure provided on New Clear Water Bay Road (shown in Figure 5.6), sound absorptive materials on the inner sides of the enclosure would be provided (30m in length from each end) to reduce the noise emitted from the two ends;

· CT5: about 45m of 7m tall cantilevered noise barrier with 3.5m long cantilever (at 45°) on Shun Lee Tsuen Road (shown in Figure 5.6);

· CT6: about 40m of 7m tall cantilevered noise barrier with 3.5m long cantilever (at 45°) on Shun Lee Tsuen Road (shown in Figure 5.6).

5.8.7 The end effect of the proposed noise barriers would be noticeable for a short barrier (CT5) in this Project. Treatment in a form similar to a ‘noise reducer’ would be made along each of the vertical ends of the above noise barrier in order to address the potential edge effects. The details of the treatment design would be made available in the next stage of this project.

5.8.8 Though the eastbound of New Clear Water Bay Road near Shun Lee Estate is beyond the study boundary, opportunity has been taken to study the technical feasibility of providing direct mitigation measures on the eastbound of New Clear Water Bay Road near Shun Lee Estate. The following technical constraints are encountered and therefore the measures are not technically feasible:

Constraint of the Existing Footpath Width

5.8.9 Consideration to reduce the width of the existing footpath to accommodate the extra direct mitigation measures has been made. However, the width of the existing footpath is only 1.7m to 2.8m in width. With the installation of the noise barrier, the width of the clear footpath would be 0.7m to 1.8m. According to the TPDM, the minimum width of a clear footpath (excluding the noise barrier if any) is 2m. It is therefore not technically feasible to further reduce the footpath width to accommodate the extra direct mitigation measures. Photos measuring the existing footpath width are shown in Appendix 5.13.

Shifting the New Clear Water Bay Road Southwards Constraint

5.8.10 Further consideration on shifting the New Clear Water Bay Road southwards has also been made. However, the road alignment design of New Clear Water Bay Road was restrained by the existing piers of the Lee On Road as well as the turning radius of the Shun Lee Tsuen Road slip road exiting from New Clear Water Bay Road westbound. Shifting the New Clear Water Bay Road southwards would make the turning radius sub-standard and therefore is not technically feasible. Photos showing these site constraints are shown in Appendix 5.13.

Access from the Existing Bus Stop to Shun Lee Estate Constraint

5.8.11 It is also identified on site that there is an existing staircase access linking up the existing bus stop at the eastbound of New Clear Water Bay Road and Shun Lee Estate. A noise barrier will not be technically feasible as it would obstruct the staircase access. Photos showing the quoted staircase access are shown in Appendix 5.13.

Sightline constraint

5.8.12 There is also a sightline constraint due to the junction of New Clear Water Bay Road, San Lee Street and Shun Ching Street. According to TPDM, a minimum of 50m sight distance has to be provided on the approaches to and through junction. A noise barrier will not be technically feasible near the junction as it would obstruct the sightline of drivers. Photos showing the quoted junction are shown in Appendix 5.13.

Existing Tree Constraint

5.8.13 Along the eastbound of New Clear Water Bay Road near Shun Lee Estate, about 20 nos. of existing trees are identified, in which, several large diameter trees (trunk diameter > 1m) with the crown spreading over the live carriageway up to 6-8m approximately. All these trees will have to be removed if extra direct mitigation measures are proposed. Photos of the concerned existing trees are shown in Appendix 5.13.

5.8.14 Table 5.5 summarises the predicted road traffic noise level at each identified NSR with the proposed direct noise mitigation measures described in Section 5.8.6. Detailed results for each floor of the noise assessment points are presented in Appendix 5.12.

5.8.15 After the application of the proposed direct noise mitigation measures described in Section 5.8.6, testing based on the criteria in Section 5.6.11 was conducted to evaluate whether further direct noise mitigation measures would be required. The predicted overall road traffic noise levels at all of the identified NSRs will comply with the noise standards stipulated in the EIAO-TM, or that the predicted road traffic noise level from the Project Roads only will not exceed the noise standards stipulated in the EIAO-TM and the contribution of traffic noise arising from the Project roads to the overall noise level will be less than 1.0 dB(A). Therefore, neither further direct mitigation measures nor application of indirect technical remedies is considered necessary.

Table 5.5 Summary of Mitigated Road Traffic Noise Assessment Results

NSR	Assessment Point ID	Uses ⁽¹⁾	Noise Criteria, dB(A)	Predicted Noise Level from Project Roads, L_10(1-hr), dB(A)	Predicted Overall Noise Level, L_10(1-hr), dB(A)	Contribution from Project Roads, L_10(1-hr), dB(A)	Further direct Mitigation Measures Required? ⁽²⁾
*J/O Clear Water Bay Road and On Sau Road*
Fei Ngo Shan Road Residential	NFNS-101	R	70	62 ~ 63	72 ~ 74	0.3 ~ 0.4	No
Sienna Garden	NFNS-201 ~ NFNS-202	R	70	54 ~ 63	59 ~ 71	0.8 ~ 1.4	No
Sienna Garden	NFNS-301 ~ NFNS-302	R	70	56 ~ 62	65 ~ 70	0.5 ~ 0.8	No
9-11 Anderson Road	NLEP-01	R	70	64	72 ~ 73	0.6 ~ 0.7	No
Shun Chi Court	NSCC-101 ~ NSCC-104	R	70	48 ~ 64	53 ~ 70	0.6 ~ 2.2	No
	NSCC-201 ~ NSCC-202	R	70	42 ~ 58	52 ~ 66	0.2 ~ 1.0	No
	NSCC-301 ~ NSCC-302	R	70	46 ~ 63	59 ~ 72	0.1 ~ 0.7	No
Tai Pan Court	NTPC-101 & NTPC-201	R	70	51 ~ 58	70 ~ 74	0.0 ~ 0.1	No
*J/O New Clear Water Bay Road and Shun Lee Tsuen Road*
Planned School at Choi Hing Road	NCHR-101 ~ NCHR-102	E	65	38 ~ 55	48 ~ 73	0.0 ~ 0.4	No
Choi Wan (I) & (II) Estate	NCWE-101 ~ NCWE-104	R	70	60 ~ 65	74 ~ 81	0.0 ~ 0.4	No
	NCWE-201	R	70	48 ~ 49	81 ~ 82	0	No
	NCWE-301 ~ NCWE-302	R	70	52 ~ 62	72 ~ 77	0.0 ~ 0.4	No
Good Hope School	NGHS-101, NGHS-201 & NGHS-301	E	65	37 ~ 59	60 ~ 72	0.0 ~ 0.5	No
CCC Kei Shun Special School	NKSP-101 & NKSP-102	E	65	59 ~ 64	72 ~ 77	0.2 ~ 0.3	No
Kwun Tong Government Secondary School	NKTG-101 & NKTG-102	E	65	48 ~ 56	57 ~ 61	0.7 ~ 1.6	No
Society of Boys’ Centres Shing Tak Centre School	NSBC-101	E	65	45	76	0	No
St Joseph's Anglo - Chinese School	NSJA-101	E	65	61 ~ 62	76	0.1 ~ 0.2	No
Shun Lee Catholic Secondary School	NSLC-101 ~ NSLC-102	E	65	51 ~ 56	58 ~ 62	0.9 ~ 1.3	No
Shun Lee Disciplined Services Quarters	NSLD-101 ~ NSLD-102	R	70	60 ~ 64	70 ~ 73	0.3 ~ 0.8	No
	NSLD-201 ~ NSLD-202	R	70	63 ~ 65	71 ~ 74	0.5 ~ 0.8	No
	NSLD-301 ~ NSLD-306	R	70	62 ~ 69	70 ~ 78	0.2 ~ 0.8	No
Shun Lee Disciplined Services Quarters	NSLD-401 ~ NSLD-406	R	70	56 ~ 67	74 ~ 78	0.0 ~ 0.5	No
	NSLD-501 ~ NSLD-504	R	70	54 ~ 67	74 ~ 80	0.0 ~ 0.4	No
	NSLD-601 ~ NSLD-602	R	70	60 ~ 63	73 ~ 77	0.1 ~ 0.3	No
	NSLD-701 ~ NSLD-702	R	70	60 ~ 61	73 ~ 76	0.1 ~ 0.3	No
Shun Lee Estate	NSLE-101 ~ NSLE-107	R	70	44 ~ 64	71 ~ 78	0.0 ~ 0.3	No
	NSLE-201 ~ NSLE-207	R	70	48 ~ 67	68 ~ 77	0.0 ~ 0.9	No
	NSLE-301 ~ NSLE-303	R	70	39 ~ 62	64 ~ 77	0.0 ~ 0.4	No
ECF Saint Too Canaan College	NSTC-101 ~ NSTC103	E	65	51 ~ 63	69 ~ 72	0.1 ~ 0.9	No
United Christian College (Kowloon East)	NUCC-101	E	65	46 ~ 56	73 ~ 74	0	No
*J/O Sau Mau Ping Road/Lin Tak Road*
Hing Tin Estate	NHTE-101 ~ NHTE-116	R	70	0 ~ 63	59 ~ 78	0.0 ~ 1.5	No
	NHTE-201 ~ NHTE-212	R	70	0 ~ 62	58 ~ 76	0.0 ~ 0.8	No
	NHTE-301 ~ NHTE-312	R	70	0 ~ 57	53 ~ 77	0.0 ~ 0.2	No
Hong Wah Court	NHWC-101 ~ NHWC-112	R	70	0 ~ 67	58 ~ 81	0.0 ~ 0.7	No
	NHWC-201 ~ NHWC-212	R	70	0 ~ 67	64 ~ 77	0.0 ~ 1.9	No
	NHWC-301 ~ NHWC-312	R	70	0 ~ 61	59 ~ 78	0.0 ~ 1.3	No
Lam Tin Estate	NLTE-101 ~ NLTE-102	R	70	< 40	69 ~ 71	0	No
Po Tat Estate	NPTE-101 ~ NPTE-104	R	70	37 ~ 62	60 ~ 74	0.0 ~ 1.1	No
	NPTE-201 ~ NPTE-205	R	70	16 ~ 64	60 ~ 74	0.0 ~ 1.1	No
	NPTE-301 ~ NPTE-305	R	70	49 ~ 65	64 ~ 74	0.0 ~ 0.8	No
	NPTE-401 ~ NPTE-405	R	70	59 ~ 65	69 ~ 74	0.4 ~ 1.0	No
	NPTE-501 ~ NPTE-505	R	70	57 ~ 64	71 ~ 74	0.2 ~ 0.8	No
	NPTE-601 ~ NPTE-605	R	70	53 ~ 63	70 ~ 74	0.0 ~ 0.6	No
St. Edward’s Catholic Primary School	NSECP-101 ~ NSECP-104	E	65	< 40	48 ~ 73	0	No
Sau Mau Ping Estate	NSMP-101 ~ NSMP-103	R	70	41 ~ 55	72 ~ 78	0.0 ~ 0.1	No
Tak Tin Estate	NTTE-101 ~ NTTE-106	R	70	< 40	70 ~ 77	0	No

Notes:

(1) R – Residential Uses; E – Educational Uses.

(2) Further direct mitigation measures are required if (a) Contribution of noise level from Project roads only > noise standards under EIAO-TM; or (b) overall noise level> noise standards under EIAO-TM, and difference between overall noise levels and noise levels of Other Roads ≥ 1.0 dB

5.8.16 The total number of dwellings and classrooms that would be benefited from and be protected by the provision of the direct noise mitigation measures are summarized in Table 5.6. Out of the 14,931 of dwellings and classrooms represented, 1,112 of them would be benefited from, and 892 of them will be protected by the provision of the proposed noise mitigation measures.

Table 5.6 Total Number of Dwellings and Classrooms Benefited From and Protected By Direct Noise Mitigation Measures

		No. of Dwellings/Classrooms Represented	No. of Dwellings/Classrooms Benefited from Noise Mitigation Measures ⁽¹⁾	No. of Dwellings/Classrooms Protected by Noise Mitigation Measures ⁽²⁾
*Residential Dwellings*
	Sub-Total	14,469	1,082	892
*Classrooms*
	Sub-Total	462	30	0
	Total	14,931	1,112	892

Notes:

(1) Dwellings and classrooms benefited from noise mitigation measures are those exposed to overall road traffic noise exceeding noise standards stipulated in the EIAO-TM under unmitigated scenario and are benefited from noise reduction of at least 1.0 dB with the implementation of the noise mitigation measures.

(2) Dwellings and classrooms protected by noise mitigation measures are those exposed to overall road traffic noise exceeding noise standards stipulated in the EIAO-TM under the unmitigated scenario and exposed to overall road traffic noise complying with the noise standards stipulated in the EIAO-TM with the implementation of the noise mitigation measures.

Comparison of Operational Road Traffic Noise under With and Without Project Scenarios

5.8.17 The aim of this section is to compare the operational road traffic noise impacts under with and without the Project Scenarios with respect to the following factors at new or altered road sections, which may significantly affect the noise levels:

· Traffic volume, speed and traffic composition: Higher traffic volume or higher heavy vehicle percentage would induce higher noise level.

· Additional road alignment: additional road alignment may contribute extra noise levels in the overall noise levels.

· Distance between the noise source and NSRs: A distance attenuation effect applies to traffic noise from a road segment propagates to the NSRs. With increased separation distance between the noise source and a NSR, the traffic noise level at the NSR would be decreased.

Road Improvement Works at Lin Tak Road and Sau Mau Ping Road

5.8.18 The proposed alignments of Project Roads at Lin Tak Road and Sau Mau Ping Road junction are presented in Figure 2.2. One at-grade lane (westbound) of Lin Tak Road would be changed to a flyover. The slip road (eastbound direction) of Sau Mau Ping Road in vicinity of Po Tat Estate would be shifted to the south by 8m. The nearest NSRs would be Po Tat Estate and Hong Wah Court. There is no change in total traffic volume, speed and traffic composition in the with Project Scenario, therefore, the factor affecting the noise levels of these NSRs would be due to the distances from the noise sources only.

5.8.19 For Po Tat Estate, the shifted Sau Mau Ping slip road (westbound) would be located farther away by 10m in the with Project Scenario. The slant distance between the new flyover and Po Tat Estate would be increased from 100m to 103m (the alignment of flyover is shifted to the south horizontally by about 4m as compared with the current at-grade road section in the without Project Scenario). Therefore, the traffic noise level from the Project on Po Tat Estate would be decreased.

5.8.20 The change in impact due to the shifted Sau Mau Ping slip road would not affect Hong Wah Court since this NSR would be located at least 150m away from the shifted road section. The slant distance between the new flyover and Hong Wah Court would be increased from 15m to 17m. Therefore, traffic noise impact from the Project on Hong Wah Court would be decreased.

Road Improvement Works at J/O Clear Water Bay Road and On Sau Road

5.8.21 The scope of this road improvement works is to provide a new U-turn facility at Clear Water Bay Road (see Figure 2.3) in the vicinity of NSR NFNS-101 at Fei Ngo Shan Road (see Figure 5.1 for the location), and the eastbound of Clear Water Bay Road in the vicinity of Sienna Garden would shift to the north by a maximum of 2m. The nearest NSRs would be NFNS-101, Sienna Garden, Kwun Tong Government Secondary School, and Shun Lee Catholic Secondary School. There would be no change in total traffic volume, speed and traffic composition at this road network in the with Project Scenario, but about 520 nos. of vehicles would use the realigned eastbound of Clear Water Bay Road and about 30 no. of vehicles would use the new U-turn facility in the peak hour. The factor affecting the noise levels of these NSRs would be due to the distances from the noise sources only in this case.

5.8.22 For Sienna Garden, the slant distance from the eastbound of Clear Water Bay Road would be decreased from 16m to 14m. According to the CRTN, the traffic noise level from this road section would be increased by no more than 0.6 dB in the with Project Scenario. As the realigned eastbound of Clear Water Bay Road and the new U-turn facility would not cause the about 550 vehicles closer to Sienna Garden, there would be no increase in traffic noise level caused by the realigned eastbound of Clear Water Bay Road and the new U-turn facility. The increase in the overall traffic noise level due to this improvement works at Sienna Garden would be less than 1.0 dB.

5.8.23 The new U-turn facility would be located at about 117m from NSR NFNS-101 in the with Project Scenario. In the without Project Scenario, the section of Clear Water Bay Road where the new U-turn facility in the with Project Scenario would be added would be located at about 125m from the same NSR. According to the CRTN, the increase in traffic noise would be not more than 0.3 dB from this road section, which would be insignificant.

5.8.24 For Kwun Tong Government Secondary School and Shun Lee Catholic Secondary School, the setback distance from the eastbound of Clear Water Bay Road in the with Project Scenario would not be shorter. As about 550 nos. of vehicles would use the realigned eastbound of Clear Water Bay Road and the new U-turn facility in the peak hour, part of the noise emission would be located farther away from the above two NSRs. Therefore, the traffic noise levels at these NSRs would be decreased in the with Project Scenario.

Road Improvement Works at J/O New Clear Water Bay Road and Shun Lee Tsuen Road

5.8.25 Under the With Project Scenario, the merging lane/ slip road from Shun Lee Tsuen Road to New Clear Water Bay Road located in the vicinity of Shun Lee Disciplined Services Quarters would be lengthened (see Figure 2.4). In addition, the westbound (main carriageway) of New Clear Water Bay Road would be widened by 2m. In the without Project Scenario, except the traffic speed on the westbound of New Clear Water Bay road fronting Shun Lee Disciplined Services Quarters would be 20 km per hour, other traffic data in this road junction network would be same as those in the with Project Scenario. The nearest NSRs would be Shun Lee Disciplined Services Quarters, Shun Lee Estate, and C.C.C. Kei Shun Special School.

5.8.26 For Shun Lee Disciplined Services Quarters, the slant distance from the merging lane /slip road would be decreased from 54m to 49m. According to CRTN, the traffic noise level would be increased by less than 0.5dB. The traffic speed on this merging lane /slip road would be changed from 20 km per hour to 50 km per hour, with the same traffic composition (25% heavy vehicles on this road section) and same traffic flow, according to the CRTN, the traffic noise level from the westbound due to the speed correction would be decreased by 1.0 dB. The slant distance from widened westbound main carriageway of New Clear Water Bay Road would be decreased from 78m to 74m, the traffic noise from the widened westbound main carriageway would be increased by 0.2 dB. As a result, there would be no increase in the traffic noise level due to the Project on this NSR.

5.8.27 For Shun Lee Estate and C.C.C. Kei Shun Special School, the westbound of New Clear Water Bay Road would be located farther by 1m. The traffic speed on the merging lane / slip road would be changed from 20 km per hour to 50 km per hour. With the same traffic composition (25% heavy vehicles on this road section) and same traffic flow, there would be a decrease in traffic noise level from the westbound. Therefore, the noise level at this NSR would be decreased in the with Project Scenario.

5.8.28 Generally, the traffic noise impacts to the nearby NSRs in the vicinity of the three road improvement works sites under the with Project Scenario would be less than 1.0 dB (i.e. insignificant) different from those under the without Project Scenario.

5.9 Evaluation of Residual Environmental Impacts

Construction Phase

5.9.1 As shown in Table 5.4, with the exception of the following NSRs with close proximity to the construction sites, the construction noise levels at the other NSRs selected for construction noise impact assessment are predicted to comply with the noise standards stipulated in the EIAO-TM with the implementation of the above-mentioned mitigation measures. Excessive residual impacts at these affected NSRs are summarised in Table 5.7.

At J/O Sau Mau Ping Road and Lin Tak Road:

· Hong Wah Court (NHWC-106, NHWC-204 & NHWC-301);

· Hing Tin Estate (NHTE-104); and

· St. Edward’s Catholic Primary School (NSECP-101 & NSECP-104).

At J/O New Clear Water Bay Road and Shun Lee Tsuen Road:

· CCC Kei Shun Special School (NKSP-102); and

· Shun Lee Estate (NSLE-202)

At J/O Clear Water Bay Road and On Sau Road:

· Sienna Garden (NFNS-202 and NFNS-302);

· Kwun Tong Government Secondary School (NKTG-101); and

· Shun Lee Catholic Secondary School (NSLC-101).

Table 5.7 Summary of Excessive Construction Noise Residual Impact

NSR	Assessment Points ID	Construction Activity Causing Exceedance	Exceedance to Noise Criterion	Duration of Exceedance (Month)
*At J/O Sau Mau Ping Road and Lin Tak Road:*
Hong Wah Court	NHWC-106	· Site Clearance · Works associated with Tseung Kwan O Road Slip Road near Hong Wah Court	1 dB(A)	1
	NHWC-106		2 dB(A)	3
	NHWC-204	· Site Clearance · Works associated with Lin Tak Road Modification and Flyover Construction	1 dB(A)	1
			2 dB(A)	4
			3 dB(A)	3
			4 dB(A)	6
	NHWC-301	· Site Clearance · Works associated with Lin Tak Road Modification and Flyover Construction	1 dB(A)	5
			2 dB(A)	2
			4 dB(A)	3
Hing Tin Estate	NHTE-105	· Site Clearance and · Works associated with Lin Tak Road Modification	1 dB(A)	1
Hing Tin Estate	NHTE-105		3 dB(A)	3
St. Edward’s Catholic Primary School	NSECP-101	· Site Clearance and · Works associated with Lin Tak Road Modification	1 dB(A) (Examination Period ⁽¹⁾)	1
			2 dB(A) (Examination Period ⁽¹⁾)	2
			5 dB(A) (Examination Period ⁽¹⁾)	1
	NSECP-104		3 dB(A) (Examination Period ⁽¹⁾)	1
*At J/O New Clear Water Bay Road and Shun Lee Tsuen Road:*
Shun Lee Estate	NSLE-202	· Construction of Full Enclosure and Noise Barriers at New Clear Water Bay Road	2 dB(A)	1
CCC Kei Shun Special School	NKSP-102	· Site Clearance · Construction of Shun Lee Tsuen Road slip road · Widening works at New Clear Water Bay Road · Construction of Full Enclosure and Noise Barriers at New Clear Water Bay Road	1 dB(A) (Normal Teaching Period ⁽¹⁾)	1
			1 dB(A) (Examination Period ⁽¹⁾)	4
			3 dB(A) (Examination Period ⁽¹⁾)	2
			4 dB(A) (Examination Period ⁽¹⁾)	1
			5 dB(A) (Examination Period ⁽¹⁾)	1
*At J/O Clear Water Bay Road and On Sau Road:*
Sienna Garden	NFNS-202	· Construction of Semi-Enclosure and Noise Barriers at Clear Water Bay Road · Slope works of Clear Water Bay Road (Sai Kung Bound)	1 dB(A)	2
			2 dB(A)	2
			3 dB(A)	5
	NFNS-302	· Construction of Semi-Enclosure and Noise Barriers at Clear Water Bay Road · Slope works of Clear Water Bay Road (Sai Kung Bound)	1 dB(A)	1
			2 dB(A)	3
			3 dB(A)	3
			4 dB(A)	2
Kwun Tong Government Secondary School	NKTG-101	· Improvement works at Clear Water Bay Road	1 dB(A) (Examination Period ⁽¹⁾)	1
Kwun Tong Government Secondary School	NKTG-101	· Improvement works at Clear Water Bay Road	3 dB(A) (Examination Period ⁽¹⁾)	1
Shun Lee Catholic Secondary School	NSLC-101	· Improvement works at Clear Water Bay Road	1 dB(A) (Examination Period ⁽¹⁾)	1
Shun Lee Catholic Secondary School	NSLC-101	· Improvement works at Clear Water Bay Road	3 dB(A) (Examination Period ⁽¹⁾)	1

Note:

(1) Normal teaching period is assumed to be held in September of each year to July of the following year. Typical examination periods occur in the months of May, June, November and December. The exceedance duration indicated is during examination periods.

5.9.2 All practical and feasible mitigation measures have been proposed and exhausted, such as adopting quiet PME, movable noise barriers and construction noise barriers. Based on information from Education Bureau (EDB) and observations from site visits, schools such as CCC Kei Shun Special School Cum Resource Centre and St. Edward’s Catholic Primary School have already been noise insulated with air-conditioners. With the provision of air-conditioners, it is considered that the noise impact would be minimized by keeping the windows closed during the construction activities. Notwithstanding this, due to more stringent noise criterion of 65 dB(A), it is recommended that particularly noisy construction activities, should be scheduled to avoid examination periods of this NSR as far as practicable. The Contractor should liaise with the school representative(s) to obtain the examination schedule so as to avoid noisy construction activities during school examination period.

5.9.3 In addition to the above-mentioned mitigation measures, it is recommended that good site practices listed below be adopted by all the contractors to further ameliorate the noise impacts. Although the noise mitigating effects are not easily quantifiable and the benefits may vary with specific site configurations and operating conditions, good site practices are easy to implement and do not impact upon the works schedule.

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

· Silencers or mufflers on construction equipment should be utilised and should be properly maintained during the construction period;

· Mobile plant, if any, should be sited as far away from NSRs as possible;

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

· Plant known to emit noise strongly in one direction should, wherever possible, be orientated so that the noise is directed away from the nearby NSRs; and

· Material stockpiles and other structures should be effectively utilised, wherever practicable, in screening noise from on-site construction activities.

Operational Phase

5.9.4 With the proposed noise mitigation measures in place, the predicted noise levels at most assessment points would exceed the relevant traffic noise standard. However, the contribution from the Project Roads to the overall traffic noise level in these cases is less than 1.0 dB(A) and the noise exceedance is due to traffic noise contribution from the Other Roads. Moreover, the predicted traffic noise levels due to the Project Roads alone are predicted to comply with the noise standards stipulated in the EIAO-TM. No indirect mitigation measures would be required. The residual traffic noise impact of the Project is considered acceptable.

5.10 EM&A Requirements

Construction Phase

5.10.1 An EM&A programme is recommended to be established according to the expected occurrence of noisy activities. All the recommended mitigation measures for daytime normal working activities should be incorporated into the EM&A programme for implementation during construction. Details of the EM&A requirements are provided in the EM&A Manual.

Operational Phase

5.10.2 Road traffic noise monitoring should be carried out during the first year after road opening at representative NSRs. Details of the monitoring requirements are provided in the EM&A Manual.

5.11 Conclusion

Construction Phase

5.11.1 This assessment has predicted the construction noise impacts of the Project, taking into account other concurrent projects. To mitigate the noise impact, all the practicable mitigation measures including quiet PME, construction noise barriers and other possible mitigation measures have been proposed and exhausted in order to minimize the impact. With the mitigation measures in place, the predicted mitigated noise levels would range from 47 to 79 dB(A) at the representative NSRs. It is recommended that the particularly noisy construction activities should be scheduled to avoid examination periods of the schools as far as practicable.

5.11.2 With respect to the Project contribution alone, mitigation measures have been recommended to minimize the noise levels, including good site practices, quieter plant, movable noise barrier and noise insulating fabric.

5.11.3 The residual construction noise impact is transient in nature. During the construction period, as much as practicable should be done to minimize the construction noise and on-going liaison with all concerned parties and site monitoring should also be conducted to enable more effective management of noise generated from the works.

5.11.4 A construction noise EM&A programme is recommended to verify compliance with the noise criteria during normal daytime working hours.

Operational Phase

5.11.5 The potential road traffic noise impacts have been assessed based on the worst-case traffic flows in 2030. Without any noise mitigation measures in place, the predicted noise levels at the NSRs would range from 49 to 82 dB(A). Practicable traffic noise mitigation measures were therefore formulated for achieving compliance with the EIAO-TM traffic noise criteria.

5.11.6 With the proposed noise barriers, semi-enclosures and full-enclosures in place on the Project Roads, the predicted overall noise levels at some of the NSRs would still exceed the relevant noise criterion. For these NSRs, the predicted traffic noise levels due to the Project Roads would not exceed the noise criterion. The noise contributions from the Project Roads to the overall traffic noise levels would also be less than 1.0 dB(A). Noise exceedances predicted at the representative NSRs are therefore due to traffic noise from the Other Roads. The residual traffic noise impact of the Project is considered acceptable.

[1] http://www.cedd.gov.hk/eng/projects/major/kw/swdb566cl_b.html

5 Noise Impact

5.2.1 Noise impacts were assessed in accordance with Annexes 5 and 13 of the Technical Memorandum on Environmental Impact Assessment Process (EIAO-TM).

5.2.3 For road traffic noise, the following L10 (1 hour) criteria are stipulated in Table 1A of Annex 5 to the EIAO-TM for different types of NSRs:

5.4 Study Area and Noise Sensitive Receivers

5.4.5 Representative assessment points (APs) considered to be potentially worst-affected NSRs selected for the assessment are presented in Table 5.1 and their locations are indicated in Figures 5.1 to 5.2.

5.5 Identification of Environmental Impacts

5.5.3 During the construction of the Project, a number of projects in the vicinity of the Project may have construction activities that occur concurrently with those of the Project. These have been reviewed with respect to the potential of cumulative impacts and the findings are as follows:

5.5.4 As there are no construction activities involving blasting, construction ground-borne noise impacts are not anticipated.

5.6.6 The Peak Traffic Flow with and without the Project in 2030 is shown in Appendix 5.5. Transport Department (TD) has no comment on the traffic forecast adopted in this EIA study. The TD’s letter is enclosed in Appendix 5.5.

5.6.7 In summary, the following years of projected peak hour traffic flow and vehicles compositions were adopted in the assessment:

5.6.8 For the purpose of the traffic noise assessment in the EIA, the roads within 300m from the proposed project alignment were included in the assessment. Road-plots of the traffic noise model with the extent of Project Roads are depicted in Figure 5.3.

5.6.9 Traffic speeds adopted in the noise model for with the Project Scenario are summarised as follows:

5.6.10 In the without Project Scenario, except the traffic speed on the westbound of New Clear Water Bay Road fronting Shun Lee Disciplined Services Quarters (20 km per hour), all other traffic speeds would be same as those in the with Project Scenario.

5.6.11 Consideration of noise mitigation measures follows Annex 13 to EIAO-TM and EIAO Guidance Note “Road Traffic Noise Impact Assessment under the Environmental Impact Assessment Ordinance” [GN 12/2010].

5.6.12 Under with the Project scenario, direct mitigation measures were proposed in all situations where:

(i) is not higher than the noise standard; and

(ii) has no significant contribution (less than 1.0 dB(A)) to the cumulative noise level, if the cumulative noise level (i.e. noise from the Project Roads together with Other Roads) exceeds the noise standard.

5.7.3 The traffic noise levels at the sensitive facades of the chosen representative existing and planned NSRs were calculated in accordance with the CRTN procedures.

5.7.8 The results indicate that the unmitigated overall road traffic noise levels at Sienna Garden and Tai Pan Court facing this section of Clear Water Bay Road would exceed the noise criteria.

Constraint of the Existing Footpath Width

Shifting the New Clear Water Bay Road Southwards Constraint

Access from the Existing Bus Stop to Shun Lee Estate Constraint

Existing Tree Constraint

5.8.14 Table 5.5 summarises the predicted road traffic noise level at each identified NSR with the proposed direct noise mitigation measures described in Section 5.8.6. Detailed results for each floor of the noise assessment points are presented in Appendix 5.12.

5.8.17 The aim of this section is to compare the operational road traffic noise impacts under with and without the Project Scenarios with respect to the following factors at new or altered road sections, which may significantly affect the noise levels:

Road Improvement Works at Lin Tak Road and Sau Mau Ping Road

Road Improvement Works at J/O Clear Water Bay Road and On Sau Road

Road Improvement Works at J/O New Clear Water Bay Road and Shun Lee Tsuen Road

5.8.28 Generally, the traffic noise impacts to the nearby NSRs in the vicinity of the three road improvement works sites under the with Project Scenario would be less than 1.0 dB (i.e. insignificant) different from those under the without Project Scenario.

5.10 EM&A Requirements

5.10.2 Road traffic noise monitoring should be carried out during the first year after road opening at representative NSRs. Details of the monitoring requirements are provided in the EM&A Manual.

5.11.2 With respect to the Project contribution alone, mitigation measures have been recommended to minimize the noise levels, including good site practices, quieter plant, movable noise barrier and noise insulating fabric.

5.11.4 A construction noise EM&A programme is recommended to verify compliance with the noise criteria during normal daytime working hours.