Evening time Noise Monitoring Results

Station M5, Chuk Lam Ming Tong(near entrance)

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

14/05/2014-a

22:45

22:50

Fine

63

65

52

Works in tunnel

Road traffic at San Wan Drive

According to contractor, general construction works was in process accordance to CNP.

28.7

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3003246

14/05/2014-b

22:50

22:55

Fine

59

64

52

28.7

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3003246

14/05/2014-c

22:55

23:00

Fine

61

63

51

28.7

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3003246

14-May-14

22:45

23:00

Fine

61

64

51

Works in tunnel

Road traffic at San Wan Drive

According to contractor, general construction works was in process accordance to CNP.

28.7

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3003246

Maximum

63

Minimum

59

Average

61