| Restricted Hours Noise Monitoring Results
-- Night time |
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| Station M3, Kwan Yick Building |
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| Date |
Start Time |
End Time |
Weather |
Noise level (dB(A)), 15 min |
Major Construction Noise Source(s) Observed |
Other Noise Source(s) Observed |
Remarks |
Temp. (°C) |
Wind Speed (m/s) |
Noise Meter Model / ID |
Calibrator Model / ID |
| Leq |
L10 |
L90 |
| 13-Dec-12 |
23:00 |
23:15 |
Cloudy |
67.4 |
68.5 |
64.8 |
No outdoor
construction noise |
Mainly
traffic noise |
- |
18.9 |
<5 |
B&K
2238 S/N: 2385180 |
B&K
4231 S/N: 3003246 |
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Min. |
67.4 |
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Max. |
67.4 |
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| Station M5a, Chuk Lam Ming
Tong |
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| Date |
Start Time |
End Time |
Weather |
Noise level (dB(A)), 5 min |
Major Construction Noise Source(s) Observed |
Other Noise Source(s) Observed |
Remarks |
Temp. (°C) |
Wind Speed (m/s) |
Noise Meter Model / ID |
Calibrator Model / ID |
| Leq |
L10 |
L90 |
| 07-Dec-12 |
23:00 |
23:15 |
Fine |
60.9 |
62.7 |
49.4 |
No major construction workd on surface |
Traffic noise at San Wan Drive |
N.A |
18.4 |
<5 |
B&K 2238 S/N :
2385180 |
B&K 4231 S/N: 3003246 |
| 27-Dec-12 |
23:00 |
23:15 |
Fine |
62.8 |
67.0 |
49.9 |
No major construction workd on surface |
Traffic noise at San Wan Drive |
N.A |
18.6 |
<5 |
B&K 2238 S/N :
2385180 |
B&K 4231 S/N: 3003246 |
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Min. |
60.9 |
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Max. |
62.8 |
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| Station M6a,
Aegean Terrace |
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| Date |
Start Time |
End Time |
Weather |
Noise
level (dB(A)), 5 min |
Major Construction Noise Source(s) Observed |
Other Noise Source(s) Observed |
Remarks |
Temp. (°C) |
Wind Speed (m/s) |
Noise Meter Model / ID |
Calibrator Model / ID |
| Leq |
L10 |
L90 |
| 19-Dec-12 |
23:00 |
23:15 |
Fine |
52.5 |
54.0 |
46.5 |
Works
inside tunnel |
Local
traffic of Aegean Terence |
According
to contractor, general construction works was in process accordance to
CNP.
Free-field measurement, +3dB correction. |
15.1 |
<5 |
B&K
2238 S/N : 2381580 |
B&K
4231 S/N: 3003246 |
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Min. |
52.5 |
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Max. |
52.5 |
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