Annex C2 - Details of Traffic Noise Impact Assessment

ANNEX C2

Details of Traffic Noise Impact Assessment

Table C2.2 Predicted Traffic Noise Levels of Representative NSRs at Year 2023
NSR ID	Status	Façade	Floor	Noise Criteria (NC) dB(A)	Unmitigated Predicted Noise Level dB(A)	Exceed NC?	Mitigated Predicted Noise Level dB(A)	Exceed NC?	Remarks
1	Existing	1	1	70	71	Exceed	71	Exceed	Eligibility Test
1	Existing	1	6	70	71	Exceed	71	Exceed	Eligibility Test
1	Existing	1	12	70	71	Exceed	71	Exceed	Eligibility Test
1	Existing	2	1	70	69	N/A	69	N/A
1	Existing	2	6	70	70	N/A	70	N/A
1	Existing	2	12	70	71	Exceed	71	Exceed	Eligibility Test
2	Existing	1	1	70	65	N/A	65	N/A
2	Existing	1	3	70	67	N/A	67	N/A
3	Existing	1	1	70	65	N/A	65	N/A
3	Existing	1	3	70	68	N/A	68	N/A
3	Existing	2	1	70	66	N/A	66	N/A
3	Existing	2	3	70	68	N/A	68	N/A
4	Existing	1	1	70	60	N/A	60	N/A
4	Existing	1	4	70	65	N/A	65	N/A
4	Existing	1	7	70	69	N/A	69	N/A
4	Existing	2	1	70	58	N/A	58	N/A
4	Existing	2	4	70	63	N/A	63	N/A
4	Existing	2	7	70	66	N/A	66	N/A
5 *	Existing	1	1	65	64	N/A	64	N/A
5 *	Existing	1	3	65	65	N/A	65	N/A
5 *	Existing	2	1	65	64	N/A	64	N/A
5 *	Existing	2	3	65	65	N/A	65	N/A
11	Existing	1	1	70	65	N/A	65	N/A
11	Existing	1	5	70	66	N/A	66	N/A
11	Existing	1	10	70	67	N/A	67	N/A
11	Existing	1	20	70	68	N/A	68	N/A
11	Existing	1	30	70	69	N/A	69	N/A
11	Existing	1	37	70	69	N/A	69	N/A
11	Existing	2	1	70	65	N/A	65	N/A
11	Existing	2	5	70	66	N/A	66	N/A
11	Existing	2	10	70	67	N/A	67	N/A
11	Existing	2	20	70	69	N/A	69	N/A
11	Existing	2	30	70	70	N/A	70	N/A
11	Existing	2	37	70	69	N/A	69	N/A
12	Existing	1	1	70	69	N/A	69	N/A
12	Existing	1	5	70	68	N/A	68	N/A
12	Existing	1	10	70	67	N/A	67	N/A
12	Existing	1	20	70	66	N/A	66	N/A
12	Existing	1	30	70	66	N/A	66	N/A
12	Existing	1	37	70	66	N/A	66	N/A
12	Existing	2	1	70	64	N/A	64	N/A
12	Existing	2	5	70	64	N/A	64	N/A
12	Existing	2	10	70	64	N/A	64	N/A
12	Existing	2	20	70	64	N/A	64	N/A
12	Existing	2	30	70	65	N/A	65	N/A
12	Existing	2	37	70	65	N/A	65	N/A
13	Existing	1	1	70	66	N/A	66	N/A
13	Existing	1	3	70	68	N/A	68	N/A
14	Existing	1	1	70	67	N/A	67	N/A
14	Existing	1	3	70	66	N/A	66	N/A
15	Existing	1	1	70	64	N/A	64	N/A
15	Existing	1	3	70	65	N/A	65	N/A
16	Existing	1	1	70	68	N/A	68	N/A
16	Existing	1	3	70	67	N/A	67	N/A
17	Existing	1	1	70	67	N/A	67	N/A
17	Existing	1	3	70	67	N/A	67	N/A
21	Existing	1	1	70	62	N/A	62	N/A
22	Existing	1	1	70	64	N/A	64	N/A
30	Existing	1	1	70	71	Exceed	71	Exceed	Eligibility Test
30	Existing	1	3	70	71	Exceed	71	Exceed	Eligibility Test
30	Existing	2	1	70	69	N/A	69	N/A
30	Existing	2	3	70	69	N/A	69	N/A
31	Existing	1	1	70	58	N/A	58	N/A
31	Existing	1	5	70	62	N/A	62	N/A
31	Existing	1	10	70	64	N/A	64	N/A
31	Existing	1	20	70	67	N/A	67	N/A
31	Existing	1	30	70	68	N/A	68	N/A
31	Existing	2	1	70	58	N/A	58	N/A
31	Existing	2	5	70	59	N/A	59	N/A
31	Existing	2	10	70	63	N/A	63	N/A
31	Existing	2	20	70	65	N/A	65	N/A
31	Existing	2	30	70	67	N/A	67	N/A
32	Existing	1	1	70	57	N/A	57	N/A
32	Existing	1	5	70	60	N/A	60	N/A
32	Existing	1	10	70	64	N/A	64	N/A
32	Existing	1	20	70	69	N/A	69	N/A
32	Existing	1	30	70	69	N/A	69	N/A
32	Existing	2	1	70	61	N/A	61	N/A
32	Existing	2	5	70	64	N/A	64	N/A
32	Existing	2	10	70	67	N/A	67	N/A
32	Existing	2	20	70	70	N/A	70	N/A
32	Existing	2	30	70	69	N/A	69	N/A
34	Existing	1	1	70	66	N/A	66	N/A
6	Future	1	1	70	70	N/A	70	N/A
6	Future	1	5	70	70	N/A	70	N/A
6	Future	1	10	70	70	N/A	70	N/A
6	Future	1	20	70	68	N/A	68	N/A
6	Future	1	30	70	68	N/A	68	N/A
6	Future	1	32	70	67	N/A	67	N/A
6	Future	2	1	70	63	N/A	63	N/A
6	Future	2	5	70	67	N/A	67	N/A
6	Future	2	10	70	69	N/A	69	N/A
6	Future	2	20	70	70	N/A	70	N/A
6	Future	2	30	70	69	N/A	69	N/A
6	Future	2	32	70	69	N/A	69	N/A
7	Future	1	1	70	68	N/A	68	N/A
7	Future	1	5	70	69	N/A	69	N/A
7	Future	1	10	70	70	N/A	70	N/A
7	Future	1	20	70	70	N/A	70	N/A
7	Future	1	30	70	70	N/A	70	N/A
7	Future	1	40	70	70	N/A	70	N/A
7	Future	1	50	70	69	N/A	69	N/A
7	Future	2	1	70	68	N/A	68	N/A
7	Future	2	5	70	68	N/A	68	N/A
7	Future	2	10	70	69	N/A	69	N/A
7	Future	2	20	70	69	N/A	69	N/A
7	Future	2	30	70	69	N/A	69	N/A
7	Future	2	40	70	68	N/A	68	N/A
7	Future	2	50	70	68	N/A	68	N/A
8	Future	1	1	70	67	N/A	67	N/A
8	Future	1	5	70	68	N/A	68	N/A
8	Future	1	10	70	69	N/A	69	N/A
8	Future	1	20	70	69	N/A	69	N/A
8	Future	1	30	70	69	N/A	69	N/A
8	Future	1	40	70	68	N/A	68	N/A
8	Future	1	50	70	68	N/A	68	N/A
8	Future	2	1	70	66	N/A	66	N/A
8	Future	2	5	70	68	N/A	68	N/A
8	Future	2	10	70	69	N/A	69	N/A
8	Future	2	20	70	69	N/A	69	N/A
8	Future	2	30	70	69	N/A	69	N/A
8	Future	2	40	70	68	N/A	68	N/A
8	Future	2	50	70	68	N/A	68	N/A
9	Future	1	1	70	63	N/A	63	N/A
9	Future	1	5	70	65	N/A	65	N/A
9	Future	1	10	70	66	N/A	66	N/A
9	Future	1	20	70	67	N/A	67	N/A
9	Future	1	30	70	67	N/A	67	N/A
9	Future	1	40	70	67	N/A	67	N/A
9	Future	1	50	70	67	N/A	67	N/A
9	Future	2	1	70	58	N/A	58	N/A
9	Future	2	5	70	59	N/A	59	N/A
9	Future	2	10	70	61	N/A	61	N/A
9	Future	2	20	70	64	N/A	64	N/A
9	Future	2	30	70	65	N/A	65	N/A
9	Future	2	40	70	66	N/A	66	N/A
9	Future	2	50	70	67	N/A	67	N/A
10	Future	1	1	70	72	Exceed	72	Exceed	SD
10	Future	1	5	70	71	Exceed	71	Exceed	SD
10	Future	1	10	70	71	Exceed	71	Exceed	SD
10	Future	1	20	70	70	N/A	70	N/A
10	Future	1	30	70	70	N/A	70	N/A
10	Future	1	40	70	69	N/A	69	N/A
10	Future	1	42	70	69	N/A	69	N/A
10	Future	2	1	70	71	Exceed	71	Exceed	SD
10	Future	2	5	70	72	Exceed	72	Exceed	SD
10	Future	2	10	70	72	Exceed	72	Exceed	SD
10	Future	2	20	70	70	N/A	70	N/A
10	Future	2	30	70	69	N/A	69	N/A
10	Future	2	40	70	69	N/A	69	N/A
10	Future	2	42	70	68	N/A	68	N/A
18	Future	1	1	70	69	N/A	69	N/A
18	Future	1	5	70	68	N/A	68	N/A
18	Future	1	10	70	68	N/A	68	N/A
18	Future	1	20	70	67	N/A	67	N/A
18	Future	1	30	70	66	N/A	66	N/A
19	Future	1	1	70	64	N/A	64	N/A
19	Future	1	5	70	64	N/A	64	N/A
19	Future	1	10	70	64	N/A	64	N/A
19	Future	1	20	70	64	N/A	64	N/A
19	Future	1	22	70	64	N/A	64	N/A
19	Future	2	1	70	60	N/A	60	N/A
19	Future	2	5	70	63	N/A	63	N/A
19	Future	2	10	70	64	N/A	64	N/A
19	Future	2	20	70	64	N/A	64	N/A
19	Future	2	22	70	63	N/A	63	N/A
19	Future	3	1	70	58	N/A	58	N/A
19	Future	3	5	70	61	N/A	61	N/A
19	Future	3	10	70	62	N/A	62	N/A
19	Future	3	20	70	63	N/A	63	N/A
19	Future	3	22	70	62	N/A	62	N/A
20	Future	1	1	70	62	N/A	62	N/A
20	Future	1	5	70	65	N/A	65	N/A
20	Future	1	10	70	65	N/A	65	N/A
20	Future	1	13	70	65	N/A	65	N/A
20	Future	2	1	70	67	N/A	67	N/A
20	Future	2	5	70	66	N/A	66	N/A
20	Future	2	10	70	65	N/A	65	N/A
20	Future	2	13	70	65	N/A	65	N/A
23	Future	1	1	70	64	N/A	64	N/A
23	Future	1	4	70	65	N/A	65	N/A
23	Future	1	7	70	65	N/A	65	N/A
24	Future	1	1	70	67	N/A	67	N/A
24	Future	1	4	70	66	N/A	66	N/A
25 *	Future	1	1	65	64	N/A	64	N/A
25 *	Future	1	3	65	64	N/A	64	N/A
25 *	Future	2	1	65	63	N/A	63	N/A
25 *	Future	2	3	65	64	N/A	64	N/A
26 *	Future	1	1	65	67	Exceed	64	N/A	3m Boundary Wall
26 *	Future	1	3	65	66	Exceed	65	N/A
26 *	Future	1	6	65	65	N/A	65	N/A
26 *	Future	2	1	65	62	N/A	62	N/A
26 *	Future	2	3	65	62	N/A	62	N/A
26 *	Future	2	6	65	62	N/A	62	N/A
26 *	Future	3	1	65	55	N/A	55	N/A
26 *	Future	3	3	65	55	N/A	55	N/A
26 *	Future	3	6	65	64	N/A	64	N/A
27	Future	1	1	70	66	N/A	66	N/A
27	Future	1	3	70	65	N/A	65	N/A
27	Future	1	5	70	65	N/A	65	N/A
28	Future	1	1	70	70	N/A	70	N/A
28	Future	1	5	70	69	N/A	69	N/A
28	Future	1	10	70	68	N/A	68	N/A
28	Future	1	14	70	67	N/A	67	N/A
28	Future	2	1	70	70	N/A	70	N/A
28	Future	2	5	70	69	N/A	69	N/A
28	Future	2	10	70	68	N/A	68	N/A
28	Future	2	14	70	67	N/A	67	N/A
28	Future	3	1	70	68	N/A	68	N/A
28	Future	3	5	70	67	N/A	67	N/A
28	Future	3	10	70	66	N/A	66	N/A
28	Future	3	14	70	65	N/A	65	N/A
29	Future	1	1	70	70	N/A	70	N/A
29	Future	1	5	70	70	N/A	70	N/A
29	Future	1	10	70	69	N/A	69	N/A
29	Future	1	20	70	67	N/A	67	N/A
29	Future	1	22	70	67	N/A	67	N/A
29	Future	2	1	70	69	N/A	69	N/A
29	Future	2	5	70	68	N/A	68	N/A
29	Future	2	10	70	67	N/A	67	N/A
29	Future	2	20	70	65	N/A	65	N/A
29	Future	2	22	70	65	N/A	65	N/A

Note:
Noise Criteria (NC): 70 dB(A) for residential premises; and 65 dB(A) for educational institution.
N/A: Not Applicable.
SD: Specially design, for example window insulation and air-conditioning.
* : Educational institution

Table C2.3

Summary of Eligibility Test of Representative NSRs

NSR ID	Façade	Floor	Noise Criteria dB(A) (NC)	Predicted Traffic Noise Level - dB(A)			Eligibility Test
NSR ID	Façade	Floor	Noise Criteria dB(A) (NC)	at Year 2003 Existing Road (P)	at Year 2023 All Roads (T)	At Year 2023 Unaltered Road (UR)	T>NC	T-UR>1	T-P>1	Qualified for NIW
1	1	1	70	65.6	70.7	70.7	Yes	No	Yes	Not
1	1	6	70	66.0	71.0	71.0	Yes	No	Yes	Not
1	1	12	70	66.0	71.1	71.0	Yes	No	Yes	Not
1	2	12	70	66.3	71.1	71.1	Yes	No	Yes	Not
30	1	3	70	68.9	70.7	70.6	Yes	No	Yes	Not

Note:
Noise Criteria (NC): 70 dB(A) for residential premises; and 65 dB(A) for educational institution.
NIW: Noise Insulation Works: NIW can only be considered if all other possible direct mitigation have been considered.

Table C2.5 : Predicted Unmitigated and Mitigated Traffic Noise Levels at representative NSRs at Western Side of Wu Kai Sha Station Development (Extended Podium as Mitigation)

NSR	Façade	Floor	Unmitigated Predicted Noise Level	Mitigated Predicted Noise Level
10	1	1	72	60
10	1	5	71	67
10	1	10	71	69
10	1	15	71	70
10	1	20	70	70
10	1	30	70	70
10	1	40	69	69
10	1	42	69	69
10	2	1	71	59
10	2	5	72	64
10	2	10	72	65
10	2	15	71	66
10	2	20	70	66
10	2	30	69	68
10	2	40	69	68
10	2	42	68	68
10	3	1	73	60
10	3	5	72	68
10	3	10	72	70
10	3	15	71	71
10	3	20	71	71
10	3	30	70	70
10	3	40	69	69
10	3	42	69	69
10	4	1	70	67
10	4	5	72	68
10	4	10	72	68
10	4	15	71	68
10	4	20	71	68
10	4	30	70	68
10	4	40	69	68
10	4	42	69	68
10	5	1	64	60
10	5	5	71	67
10	5	10	71	67
10	5	15	70	67
10	5	20	70	67
10	5	30	69	66
10	5	40	68	66
10	5	42	68	67
10	6	1	64	60
10	6	5	71	67
10	6	10	71	67
10	6	15	70	67
10	6	20	70	67
10	6	30	69	67
10	6	40	68	67
10	6	42	68	67
Note :
Mitigation : 5m tall boundary wall on top of Extended Podium at Western Side of the Development
Location of the NSRs and Mitigation Measure, please refer to Figure C2.6.
Bold : Exceed traffic noise criteria

Table C2.6 : Predicted Unmitigated and Mitigated Traffic Noise Levels at representative NSRs at Western Side of Wu Kai Sha Station Development (Extended Podium as Mitigation – Plot Ratio 5.0 – Option 1)

NSR	Façade	Floor	Unmitigated Predicted Noise Level	Mitigated Predicted Noise Level
10	1	1	72	60
10	1	5	71	67
10	1	10	71	69
10	1	15	71	70
10	1	20	70	70
10	1	30	70	70
10	1	40	69	69
10	1	42	69	69
10	2	1	71	59
10	2	5	72	64
10	2	10	72	65
10	2	15	71	66
10	2	20	70	66
10	2	30	69	68
10	2	40	69	68
10	2	42	68	68
10	3	1	73	60
10	3	5	72	68
10	3	10	72	70
10	3	15	71	71
10	3	20	71	71
10	3	30	70	70
10	3	40	69	69
10	3	42	69	69
10	6	1	64	60
10	6	5	71	67
10	6	10	71	67
10	6	15	70	67
10	6	20	70	67
10	6	30	69	67
10	6	40	68	67
10	6	42	68	67
Note :
Mitigation : 5m tall boundary wall on top of Extended Podium at Western Side of the Development
Location of the NSRs and Mitigation Measure, please refer to Figure C2.7.
Bold : Exceed traffic noise criteria

Table C2.7 : Predicted Unmitigated and Mitigated Traffic Noise Levels at representative NSR at Western Side of Wu Kai Sha Station Development (Extended Podium as Mitigation for Plot Ratio 5 Option 2)

			Predicted Traffic Noise Level
NSR	Façade	Floor	Unmitigated	Mitigated
10	4	1	71	69
10	4	5	72	69
10	4	10	72	69
10	4	15	72	70
10	4	20	71	70
10	4	30	71	70
10	4	40	70	70
10	4	42	70	70
10	5	1	65	64
10	5	5	71	69
10	5	10	71	69
10	5	15	71	69
10	5	20	71	70
10	5	30	70	70
10	5	40	70	70
10	5	42	70	69

Note :
Bold : exceedance of 70 dB(A) traffic noise criteria
Mitigation : 5m tall boundary wall on top of Extended Podium at Western Side of the Development
Location of the NSRs and Mitigation Measure, please refer to Figure C2.8.