Appendix I Impact Daytime Construction Noise
Monitoring Results |
|
|
|
|
|
|
|
|
|
|
Daytime
Noise Monitoring Results at Station NMS2 - Seaview Crescent Tower 1 |
|
|
|
|
|
|
|
|
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) |
Time |
L90 |
L10 |
Leq |
01-Dec-14 |
Fine |
10:45 |
64 |
70 |
67 |
<5m/s |
62.9 |
|
75 |
N |
12-Dec-14 |
Fine |
10:42 |
63 |
71 |
68 |
<5m/s |
62.9 |
|
75 |
N |
18-Dec-14 |
Fine |
10:40 |
61 |
69 |
67 |
<5m/s |
62.9 |
|
75 |
N |
24-Dec-14 |
Fine |
10:46 |
62 |
70 |
67 |
<5m/s |
62.9 |
|
75 |
N |
|
Min |
61 |
69 |
67 |
|
|
|
|
|
Max |
64 |
71 |
68 |
|
|
|
|
|
Average |
-- |
-- |
67 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Daytime
Noise Monitoring Results at Station NMS3B - Site Boundary of Site Office
(WA2) |
|
|
|
|
|
|
|
|
|
|
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) |
Time |
L90 |
L10 |
Leq |
01-Dec-14 |
Fine |
11:33 |
64 |
70 |
69 |
<5m/s |
66.3 |
|
70 |
N |
12-Dec-14 |
Fine |
11:29 |
64 |
69 |
67 |
<5m/s |
66.3 |
|
70 |
N |
18-Dec-14 |
Fine |
11:28 |
61 |
70 |
67 |
<5m/s |
66.3 |
|
70 |
N |
24-Dec-14 |
Fine |
11:28 |
63 |
70 |
68 |
<5m/s |
66.3 |
|
70 |
N |
|
Min |
61 |
69 |
67 |
|
|
|
|
Max |
64 |
70 |
69 |
|
|
|
|
Average |
-- |
-- |
68 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Remark: |
|
|
|
|
|
# A
correction of +3dB(A) was made to the free field measurement. |
|
|
|
|
*
Façade measurement. |
|
|
|
|
|
^
Averaged baseline noise level recorded at NMS3 Ho Yu College is adopted. |
|
|
|
|
** Limit Level of 70dB(A) applies to education institutes while 65dB(A)
applies during school examination period. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|