Approved report

4 C D Developments
Environmental Traffic and Rail Noise Level Impact Assessment for Proposed Residential Unit Development,
54 Elm Street and 5 Pearl Street, Cooroy                                                                    Page 25 of 35

control must be mechanically ventilated and/or air-conditioned. This air-conditioning/mechanical
ventilation system must be designed and installed such that it maintains the internal noise and,
furthermore, complies with the ventilation requirements of the Building Code of Australia.

With the 2.0 metre high Elm Street boundary acoustic barrier and 2.0 metre high and 15 metre long
returns on the northern and southern boundaries of 54 Elm Street in place, ultimate traffic noise levels
comply with the private external living area noise limits, with no additional noise control measures
required.

The required traffic and rail Noise Category to control these transport noise levels to the noise limit for
habitable rooms is detailed in Table 8 and Table 9 respectively, for all proposed residential units, for
Level 1 and 2, for all facades.

To ensure adequate noise control for habitable rooms for the combined effect of both traffic and rail
noise impact, Table 10 details the Noise Category for all proposed residential units, for Level 1 and 2,
for all facades.


RECOMMENDATION

It is recommended that, from an environmental noise perspective, the proposed residential development
at 54 Elm Street and 9 Pearl Street, Cooroy be approved. This approval must include the nominated
acoustic barriers and the nominated Noise Category for the materials of construction, for both levels and
all of the facades of the proposed residential units.




David Moore & Associates Pty Ltd                                                Our reference: R21046/D3569/Rev.0/2.07.21