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)

=

 

village has been calculated on the basis of the following information and assumptions:
= Day and evening criteria (7 am — 10 pm): Lamexes 48 AB(A) (Laso + 5 dB(A));
= Night (10 pm — 7 am) criteria: Lamaxeq 38 dB(A) (Laso + 3 dB(A));

® a minimum source to receptor distance of 11 m for the aged care facility and 27 m for the
community village building; and

= all plant are located in direct line of sight of the nearest neighbouring property (ie, they are not
shielded by the roofline or other structures or topographic features).

Table 6.1 indicates maximum allowable noise source levels for fixed plant equipment at the aged
care facility and community village building.

TABLE 6.1: FIXED PLANT NOISE LIMITS

 

 

 

 

 

Noise Source Nearest Sensitive | Maximum Allowable Sound Power Level dB(A)
Location Receptor
Day (7 am -10 pm) Night (10 pm — 7 am)
Aged Care Facility {LU 77 67
Community Village ILU 85 75
Building

 

 

 

 

 

If all noise sources are shielded from the nearest receptors a maximum allowable sound power
level 10 dB(A) higher than those presented in Table 6.1 may be acceptable depending on the
height of the sources relative to the acoustic screening and the type of structure involved.

The above specified sound power levels are based on worst-case locations and do not take into
account potential shielding from building structures. It is recommended that continuously operating
plant are located as far as possible from potentially sensitive development. More specific acoustic
specifications can be established once finalisation of mechanical plant design and location has
been completed.

6.2.2. Loading Dock Noise

The proposed site layout has an area designated for service access associated with the aged care
facility, as shown on Figure 2. The regular services associated with the aged care facility will most
likely include refrigerated food trucks and waste disposal services. All deliveries are expected to
occur between 7 am and 6 pm. Based on site survey plans, the minimum distance to the nearest
sensitive receptors is 33 m (ILU located north-west of the proposed service area).

Given the short-term nature of the above noise sources, the appropriate criterion to use for
assessing the acoustic impact is a background Lai plus 3 dB(A) noise level. Noise monitoring
Position 2 indicates an average Lato noise level for the period between 7 am to 6 pm to be
56.1 dB(A). Hence, a 59 dB(A) criterion is adopted. The 56 dB(A) noise level was measured during
a weekday, when the majority of service vehicles are expected to make deliveries.

 

AIR NOISE ENVIRONMENT PTY LTD

INETWORK/PROJECTS/M750/REPORTING/2008 REVISION/1750REPORT04.0DT Page 44