| Night time Noise Monitoring Results | |||||||||||||
| Station M6a, | |||||||||||||
| Date | Start Time | End Time | Weather | Noise level (dB(A)) | 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 | |||||||||||
| 05/03/14-a | 23:00 | 23:05 | Fine | 47 | 50 | 43 | Works inside tunnel | Local traffics of Aegean Terence | According
to contractor, general construction works was in process accordance to
CNP. Free-field measurement, +3dB correction. |
16.7 | <5 | B&K 2238 S/N : 2800932 | B&K 4231 S/N: 3003246 |
| 05/03/14-b | 23:05 | 23:10 | 50 | 53 | 46 | ||||||||
| 05/03/14-c | 23:10 | 23:15 | 47 | 50 | 42 | ||||||||
| 05-Mar-14 | 23:00 | 23:15 | Fine | 51 | 54 | 47 | 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. |
16.7 | <5 | B&K 2238 S/N : 2800932 | B&K 4231 S/N: 3003246 |
| Maximum | 51 | ||||||||||||
| Minimum | 47 | ||||||||||||