Compiled Approved Plans - 132002.220285.I (As Published)

Table 5 - Predicted Continuous Noise Impacts with Optimised Acoustic Barrier

 

 

 

 

 

 

 

 

 

 

. . Compliance
. Internal Noise sgt Compliance P
Noise . Criteria Lacg, adj, . with
Source Time Level Lag, adj th with Condition
dB(A)" ter Condition 5 3
70
Mechanical Day 33 <35 Yes Yes
Plant Evening 33 <35 Yes Yes
Noise Night 25 < 30 Yes Yes
Loading Day 15 <35 Yes N/A
Dock Evening 15 < 35 Yes N/A
Movement | Night 15 < 30 Yes N/A
Loading Day 25 <35 Yes N/A
Dock A
Vehicle Evening 25 <35 Yes N/A
Idling Night 25 < 30 Yes N/A

 

 

 

 

 

 

 

 

Note’: Assumed 10-15dB noise reduction across facade with partially opened windows for ventilation.
Note: Condition 70 is not applicable to all mechanical plant and is only considered for air-conditioning
equipment noise.

Table 6 - Predicted Transient Noise Impacts with Optimised Acoustic Barrier

 

 

 

 

 

 

 

C li
Noise . Internal Noise Level Lamax Criteria . omp tance
Time 1 with Condition
Source dB(A) Lat, adj, thr 5
Loading Day 37 <45 N/A
Dock Evening 37 < 45 N/A
Movement | Night 37 < 40 N/A
Day 37 <45 N/A
Compactor Evening 37 <45 N/A
Night N/A N/A N/A

 

 

 

 

 

 

 

Note™: Assumed 10-15dB noise reduction across facade with partially opened windows for ventilation.

Compliance is predicted for mechanical plant, loading dock vehicle movements, loading dock vehicle idling,
and compactor noise for all time periods.

Based on the above predictions, the following is noted for mechanical plant noise:

e Night time period: compliance is predicted for the night time period based on the following
conditions:
a. The chillers are switched off at 9pm and shall not be operational during the night time
period.
b. The operational conditions of other plant are as listed in Section 6.2.

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Document Set ID: 21711315
Version: 1, Version Date: 24/11/2021