Restricted Hours Noise Monitoring Results -- Night time         
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
19-Jul-12 23:00 23:15 Fine 66 67 63 No outdoor construction noise Mainly traffic noise - 30.2 <5 B&K 2238   S/N: 2385180 B&K 4231   S/N: 2656516
                           
                           
      Min. 66        
      Max. 66        
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
10-Jul-12 23:00 23:15 Fine 61 60 52 No major construction workd on surface Traffic noise at San Wan Drive  N.A 29.9 <5 B&K 2238   S/N : 2385180 B&K 4231  S/N: 2656516
26-Jul-12 23:00 23:15 Fine 59 60 52 No major construction workd on surface Traffic noise at San Wan Drive  N.A 25.5 <5 B&K 2238   S/N : 2385180 B&K 4231  S/N: 2656516
      Min. 59                
      Max. 61                
Station M6a, Aegean Terrace
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
05-Jul-12 23:00 23:15 Fine 53 55 49 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.
27.8 <5 B&K 2238       S/N : 2385180 B&K 4231  S/N: 2656516
                           
      Min. 53                
      Max. 53