07/2398 - Revised Noise Report and cover letters to referral agencies [As Published] · 132007.2398

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Proposed RSL Retirement Village, Cooroy - Road and Rail Noise Assessment (Revised)

 

predicted to be 33 vehicles per hour and 42 vehicles per hour respectively. For the purpose of
assessing potential noise impacts associated with accessing vehicles, the Lai 59 dB(A) criterion as
discussed in the previous section is considered appropriate.

Predictions have been based on noise source levels of 86 dB(A) at 1 metre for small cars and
93 dB(A) at 1 metre for a service truck. Noise associated with small cars have been modelled as a
line source to consider the continuity of vehicles during peak hours. Service vehicles have been
modelled as point sources, given that service vehicles are expected to access the site only once a
day. Lamex noise levels have also been considered as a conservative approach. Table 6.5 presents
predicted noise levels at the nearest sensitive receptor.

TABLE 6.5: PREDICTED NOISE LEVELS FOR ACCESSING VEHICLES

 

 

 

 

 

Nolse Source Predicted Lamax Noise Levels dB(A)
Passenger Car 56

Service Vehicle 58

Noise Criteria Lato 59 AB(A)

 

 

 

Based on the noise predictions, the impact of accessing vehicles on the Lot 1 residential house is
predicted to be minimal. It should be noted that the ILU buildings along the access road provide
significant shielding for the residential house. Furthermore, it is possible that traffic along the
Cooroy Connection Road (particularly heavy vehicles) will remain the dominant noise source
compared to vehicles accessing the site (which will also be travelling at low speeds).

 

AIR NOISE ENVIRONMENT PTY LTD
INETWORK/PROJECTS/1750/REPORTING/2008 REVISION/1750REPORT04.ODT Page 46