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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6-Jul-20 |
10:20 |
67.9 |
68.7 |
67.2 |
75 |
N |
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6165950.019 |
7413102.413 |
5248074.602 |
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17-Jul-20 |
13:50 |
68.3 |
70.4 |
66.6 |
75 |
N |
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6760829.754 |
10964781.96 |
4570881.896 |
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23-Jul-20 |
14:00 |
67.4 |
68.0 |
65.5 |
75 |
N |
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5495408.739 |
6309573.445 |
3548133.892 |
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29-Jul-20 |
13:35 |
66.8 |
68.5 |
65.0 |
75 |
N |
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4786300.923 |
7079457.844 |
3162277.66 |
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Min |
66.8 |
68.0 |
65.0 |
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67.6 |
69.0 |
66.2 |
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Max |
68.3 |
70.4 |
67.2 |
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Average |
67.6 |
69.0 |
66.2 |
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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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6-Jul-20 |
11:25 |
60.3 |
62.0 |
58.2 |
70 |
N |
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1071519.305 |
1584893.192 |
660693.448 |
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17-Jul-20 |
13:00 |
67.1 |
69.0 |
64.0 |
70 |
N |
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5128613.84 |
7943282.347 |
2511886.432 |
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23-Jul-20 |
13:10 |
60.7 |
61.5 |
58.0 |
70 |
N |
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1174897.555 |
1412537.545 |
630957.3445 |
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29-Jul-20 |
14:25 |
62.3 |
63.9 |
60.5 |
70 |
N |
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1698243.652 |
2454708.916 |
1122018.454 |
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Min |
60.3 |
61.5 |
58.0 |
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63.6 |
65.2 |
60.9 |
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Max |
67.1 |
69.0 |
64.0 |
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Average |
63.6 |
65.2 |
60.9 |
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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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