| Appendix I Impact Daytime Construction Noise
Monitoring Results |
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| Daytime
Noise Monitoring Results at Station NMS2 - Seaview Crescent Tower 1 |
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| Date |
Weather Condition |
Noise Level for 30-min, dB(A)# |
Averaged Wind Speed (m/s) |
Baseline Noise Level, dB(A) |
Calculated
Construction Noise Level, dB(A) |
Limit Level, dB(A) |
Exceedance (Y/N) |
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| Time |
L90 |
L10 |
Leq |
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| 5-Mar-14 |
Fine |
10:35 |
65 |
70 |
68 |
<5m/s |
62.9 |
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75 |
N |
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| 11-Mar-14 |
Fine |
10:40 |
65 |
72 |
69 |
<5m/s |
62.9 |
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75 |
N |
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| 17-Mar-14 |
Sunny |
10:30 |
64 |
71 |
68 |
<5m/s |
62.9 |
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75 |
N |
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| 28-Mar-14 |
Fine |
10:40 |
67 |
70 |
69 |
<5m/s |
62.9 |
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75 |
N |
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Min |
64 |
70 |
68 |
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Max |
67 |
72 |
69 |
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Average |
-- |
-- |
68 |
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| Daytime
Noise Monitoring Results at Station NMS3B - Site Boundary of Site Office
(WA2) |
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| Date |
Weather Condition |
Noise Level for 30-min, dB(A)# |
Averaged Wind Speed (m/s) |
Baseline Noise Level, dB(A) ^ |
Calculated
Construction Noise Level, dB(A) |
Limit Level, dB(A)** |
Exceedance (Y/N) |
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| Time |
L90 |
L10 |
Leq |
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| 5-Mar-14 |
Fine |
11:25 |
57 |
71 |
66 |
<5m/s |
66.3 |
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70 |
N |
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| 11-Mar-14 |
Fine |
10:44 |
61 |
69 |
66 |
<5m/s |
66.3 |
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70 |
N |
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| 17-Mar-14 |
Sunny |
13:05 |
64 |
70 |
67 |
<5m/s |
66.3 |
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70 |
N |
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| 28-Mar-14 |
Fine |
11:39 |
64 |
69 |
68 |
<5m/s |
66.3 |
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70 |
N |
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Min |
57 |
69 |
66 |
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Max |
64 |
71 |
68 |
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Average |
-- |
-- |
67 |
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| Remark: |
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| # A correction of
+3dB(A) was made to the free field measurement. |
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| *
Façade measurement. |
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| ^
Averaged baseline noise level recorded at NMS3 Ho Yu College is adopted. |
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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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Date: April 2014 |
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