Table 4.8 Cumulative Construction Noise Levels at Representative NSRs (With Mitigation)
|
NSRs |
Maximum Noise Level, dB(A) |
Cumulative Noise Levels, dB(A) |
||||
|
|
P1a |
P1b |
P2 |
Sewer |
Submarine Outfall |
|
|
CMV1 |
65.1 |
53.4 |
-- |
94.1 |
-- |
94 |
|
CMV2 |
73.1 |
66.4 |
-- |
91.6 |
-- |
92 |
|
CMV3 |
54.3 |
65.4 |
-- |
83.6 |
-- |
84 |
|
CMV4 |
66.4 |
71.4 |
-- |
82.0 |
-- |
82 |
|
CMV5 |
67.4 |
66.4 |
-- |
88.0 |
-- |
88 |
|
CMV6 |
71.2 |
66.1 |
-- |
88.0 |
-- |
88 |
|
THT |
54.5 |
63.6 |
-- |
88.0 |
-- |
88 |
|
SKW1 |
53.1 |
61.1 |
-- |
91.6 |
-- |
92 |
|
SKW2 |
52.2 |
50.5 |
46.5 |
91.6 |
-- |
92 |
|
SKW3 |
-- |
48.6 |
47.5 |
94.1 |
-- |
94 |
|
SKW4 |
-- |
47.0 |
49.2 |
94.1 |
-- |
94 |
|
SKW5 |
-- |
-- |
51.2 |
77.6 |
-- |
78 |
|
SKW6 |
-- |
-- |
53.4 |
72.0 |
-- |
72 |
|
SKW7 |
42.7 |
60.9 |
-- |
72.0 |
-- |
72 |
|
SKW8 |
41.2 |
58.8 |
47.4 |
72.0 |
-- |
72 |
|
SKW9 |
-- |
57.3 |
48.7 |
72.0 |
-- |
72 |
|
SKW10 |
-- |
-- |
62.8 |
97.6 |
-- |
98 |
|
SKW11 |
-- |
-- |
64.1 |
88.0 |
-- |
88 |
|
SKW12 |
-- |
-- |
65.4 |
94.1 |
-- |
94 |
|
TSW1 |
-- |
-- |
72.8 |
88.0 |
-- |
88 |
|
TSW2 |
-- |
-- |
64.3 |
83.6 |
-- |
84 |
|
TSW3 |
-- |
-- |
62.9 |
88.0 |
-- |
88 |
|
TSW4 |
-- |
-- |
60.2 |
91.6 |
-- |
92 |
Note:
3 dB(A) facade effect was added in the calculation
-- The noise level at this particular NSR was negligible as it would be more than 300m away from the construction activity.
Boldface indicates an exceedance of the noise criteria of 75dB(A) for residential uses and 70dB(A) for temple and library.