20211104OBA_R2_Information_Request_Response - Acoustic RF · MCU21/0146

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Table 15 — Predicted Continuous Noise Impacts with Optimised Acoustic Barrier

 

 

 

 

 

 

 

 

 

 

 

lian
. Internal Noise seus Compliance Comp tance

Noise . Criteria Laeg, adj, . with

Source Time Level Leg, adj thr with Condition
dB(A)" ‘wr Condition 5 >

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 .

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 16 — Predicted Transient Noise Impacts with Optimised Acoustic Barrier

 

 

 

 

 

 

 

 

: . ogo Compliance
Noise . Internal Noise Level Lamax Criteria . Pp" wpe
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:

1) Night time period: compliance is predicted for the night time period based on the following
conditions:

IMobs\2021\202 10208\20210208.3\20210923JJMA_R4_Development_Application_.docx 47