Predicted Noise Levels for Use of S92
Table 1 – Lmax
Predicted for S92 Operated at Proposed Helipad
Scenario
|
Noise Source |
Predicted Noise Level, Lmax dB(A)* |
|||||
|
The Bauhinia |
Ka On Building |
Talon Tower |
Hongway Garden |
Harmony Court |
Sea View Mansion |
||
|
2d |
S92
at Proposed Helipad (Approach from East) |
85 (Approach)* |
81 (Takeoff)* |
84 (Hovering to landing)* |
- |
- |
- |
|
2e |
S92
at Proposed Helipad (Approach from West) |
86 (Approach)* |
86
(Approach)* |
85 (Hovering to landing)* |
- |
- |
- |
|
2f |
S92 passing-by |
80 |
83 |
83 |
82 |
81 |
80 |
Table 2 – Leq
(4-hour) Predicted for S92 Operated at Proposed Helipad
Flight Path
|
Predicted Noise Level, Leq(4hours) dB(A) |
||
The
Bauhinia
|
Ka On Building |
Talon Tower |
|
|
S92 operated at proposed helipad (22 movements) |
|||
|
Approach from the East and Takeoff
to the West |
66 |
62 |
67 |
|
Approach from the West and Takeoff
to the East |
66 |
67 |
67 |
Table 3 – Lmax
Predicted for Cumulative Impact with the Use of S92 Operated at Proposed
Helipad
Scenario
|
Noise Source |
Predicted Noise Level, Lmax dB(A) |
||||||||
|
The Bauhinia |
Ka On Building |
Talon Tower |
||||||||
|
Proposed
Helipad |
Existing
Helipad |
Total |
Proposed
Helipad |
Existing
Helipad |
Total |
Proposed
Helipad |
Existing
Helipad |
Total |
||
|
3c |
S76C+ (Idling) at Existing Helipad & S92 at Proposed Helipad (Approach
from East) |
85 (Approach)* |
76 (Idling) |
85 |
81 (Takeoff)* |
77 (Idling) |
82 |
84
(Hovering to landing)* |
79
(Idling) |
85 |
|
3d |
S76C+ (Idling) at Existing Helipad & S92 at Proposed Helipad (Approach
from West) |
86 (Approach)* |
78 (Idling) |
86 |
86 (Approach)* |
78 (Idling) |
86 |
85 (Hovering to
landing)* |
77 (Idling) |
86 |
|
4c |
S76C+ at Existing Helipad (Approach from East) &
S92 (idling) at
Proposed Helipad |
70
(Idling) |
84
(Hovering to landing)* |
84 |
73
(Idling) |
82
(Takeoff)* |
83 |
80
(Idling) |
82
(Hovering to landing)* |
84 |
|
4d |
S76C+ at Existing Helipad (Approach from West) &
S92 (idling) at
Proposed Helipad |
72 (Idling) |
84 (Hovering to takeoff)* |
84 |
74 (Idling) |
86 (Hovering to landing)* |
86 |
78 (Idling) |
84 (Hovering to landing)* |
85 |