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

09/01/2014-a

22:45

22:50

Fine

50

51.0

49.0

Works in tunnel

Road traffic at San Wan Drive

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

16

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

09/01/2014-b

22:50

22:55

Fine

56

56.5

49.0

16

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

09/01/2014-c

22:55

23:00

Fine

63

64.0

49.0

16

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

09-Jan-14

22:45

23:00

Fine

59

60.1

49.0

Works in tunnel

Road traffic at San Wan Drive

16

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

Min

50

Max

63

Average

57