| Restricted Hours Noise Monitoring Results -- Night time | |||||||||||||
| Station M5a, | |||||||||||||
| 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 | |||||||||||
| 06-Apr-11 | 23:00 | 23:15 | Fine | 58 | 60 | 54 | No major construction works | Road traffic | N.A | 19.6 | <5 | B&K 2238 S/N : 2684503 | B&K 4231 S/N: 2385180 |
| 21-Apr-11 | 23:00 | 23:15 | Fine | 63 | 63 | 50 | Welding works | Road traffic | N.A | 23.1 | <5 | B&K 2238 S/N : 2684502 | B&K 4231 S/N: 2656516 |
| Min. | 58 | ||||||||||||
| Max. | 63 | ||||||||||||