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

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

 

4.3 ASSESSMENT OF MONITORING RESULTS

Table 4.1 presents the Lama noise levels measured by Air Noise Environment at the site boundary
adjacent to the Cooroy Connection Road (see Figure 1).

TABLE 4.1: MAXIMUM NOISE LEVELS AT THE DEVELOPMENT SITE BOUNDARY FRONTING
THE COOROY CONNECTION ROAD (dB(A))

 

 

 

 

 

 

Source of Data Lamax (Free-Fletd)
Continuous unattended monitoring 87 (Average)
Attended noise monitoring of train noise 89

 

The attended noise measurements at the boundary of the site have determined that the average
Lamax Noise level of a passing trains is approximately 87 dB(A). Hence, the internal criteria (average
Lamax) is predicted to be exceeded by up 40 dB(A) and 35 dB(A) for sleeping and living areas
respectively.

The noise levels indicated in Table 4.1 were measured at the site boundary, at a distance of 40 m

from the passing trains. Mitigation options for reducing noise levels to within the Noosa Shire
Council internal criteria are presented in the following sections.

4.4 RAIL NOISE MITIGATION

4.4.1. Acoustic Barrier and Construction Material Requirements

Further noise calculations have been completed to determine the effectiveness of an acoustic
barrier, as identified on Figure 8. The acoustic barrier is suitable for providing attenuation for both
toad traffic noise (as discussed in Section 5.6) and rail noise. It is assumed that the barrier is
constructed of a material with a mass density of 12 kg/m? and is continuous with no air gaps.

Tables 4.2 and 4.3 present predicted Lama noise levels associated with train noise.

TABLE 4.2: PREDICTED WORST-CASE Lamax NOISE LEVELS (FACADE-CORRECTED) FOR
ILU BUILDINGS

 

 

 

 

 

 

 

 

 

Worst-Case Predicted Lams Noise Levels dB(A)
ILU No.' Bed 1 Bed 2 Terrace Side Facade Front Facade
Facade Facade | (Sliding Door) | (Living/Dining/Kitchen) (Living)
1 74 83 77 75 82
2 73 83 76 73 80
3 82 80 71 71 80
4 82 85 76 74 83
5 71 82 75 72 81
6 80 80 74 72 81

 

 

 

 

 

 

 

 

AIR NOISE ENVIRONMENT PTY LTD
INETWORK/PROJECTS/1750/REPORTING/2008 REVISION/1750REPORTO4.ODT Page 9