Appendix I Impact Daytime Construction Noise
Monitoring Results |
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Location
: M2 (West Tai Wo - Free Field) |
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Day
time 07:00-19:00 hrs Normal Weekdays Impact Noise Monitoring Results |
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Measured Noise Level for 30-min, dB(A) |
Limit Level, dB(A) |
Exceedance (Y/N) |
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Date |
Start Time |
Leq* |
L10* |
L90* |
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7-Apr-17 |
13:30 |
67.0 |
69.0 |
65.0 |
75 |
N |
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5011872.336 |
7943282.347 |
3162277.66 |
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12-Apr-17 |
14:49 |
70.9 |
72.5 |
68.3 |
75 |
N |
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12302687.71 |
17782794.1 |
6760829.754 |
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18-Apr-17 |
13:59 |
69.6 |
70.5 |
66.5 |
75 |
N |
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9120108.394 |
11220184.54 |
4466835.922 |
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24-Apr-17 |
14:40 |
69.0 |
71.0 |
66.5 |
75 |
N |
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7943282.347 |
12589254.12 |
4466835.922 |
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31-Aug-16 |
9:54 |
69.6 |
71.2 |
66.4 |
75 |
N |
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9120108.394 |
13182567.39 |
4365158.322 |
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Min |
67.0 |
69.0 |
65.0 |
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69.3 |
70.9 |
66.7 |
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Max |
70.9 |
72.5 |
68.3 |
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Average |
69.3 |
70.9 |
66.7 |
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Location
: M3 (Fanling Government Secondary School- Façade) |
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Day
time 07:00-19:00 hrs Normal Weekdays Impact Noise Monitoring Results |
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Measured Noise Level for 30-min, dB(A) |
Limit Level, dB(A)^ |
Exceedance (Y/N) |
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Date |
Start Time |
Leq |
L10 |
L90 |
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7-Apr-17 |
13:05 |
60.0 |
61.0 |
56.0 |
70 |
N |
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1000000 |
1258925.412 |
398107.1706 |
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12-Apr-17 |
15:19 |
67.4 |
69.5 |
65.2 |
70 |
N |
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5495408.739 |
8912509.381 |
3311311.215 |
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18-Apr-17 |
13:12 |
64.2 |
66.0 |
61.0 |
70 |
N |
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2630267.992 |
3981071.706 |
1258925.412 |
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24-Apr-17 |
13:45 |
60.5 |
62.0 |
56.5 |
65 |
N |
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1122018.454 |
1584893.192 |
446683.5922 |
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31-Aug-16 |
10:46 |
64.9 |
66.0 |
62.1 |
70 |
N |
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3090295.433 |
3981071.706 |
1621810.097 |
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Min |
60.0 |
61.0 |
56.0 |
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64.1 |
65.9 |
61.3 |
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Max |
67.4 |
69.5 |
65.2 |
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Average |
64.1 |
65.9 |
61.3 |
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* +3dB(A) Façade effect correction included |
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^
Limit Level of 70dB(A) applies to education institutes while 65dB(A) applies
during school examination period. |
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