Distance(m)

Noise Attenuation (dB(A))

Predicted Noise Levels (dB(A))

Ngong Ping (B)

Ngong Ping

Ngong Ping (C)

Village

Village

Village

Village

Village

Village

Village

Village

Village

(A)

House A

House B

House C

House A

House B

House C

House A

House B

House C

SWL

NSR1

NSR2

NSR3

NSR1

NSR2

NSR3

NSR1

NSR2

NSR3

Noise Impacts at Ngong Ping

Stream Diversion (w/ Rock Breaking)

100

28

n/a

n/a

37

n/a

n/a

66

n/a

n/a

Stream Diversion (w/o Rock Breaking)

95

n/a

12

6

n/a

30

24

n/a

68

74

Total

66

68

74

Note(s):

1. Bold figure exceeds noise criteria

2. N.A. denotes Not Applicable

3. Façade effect is considered for all NSRs

4. Noise levels (C) = SWL (A) - Noise Attenuation {20*log [Distance(B)] -8} + façade effect