Attachment 8 - Environmental Noise Assessment · MCU23/0078

Table 11: Sleep Disturbance Goals

   Window Type and Setting                          External L Amax Noise Level, dB(A)*
   Wide open                                                        47
   Partially open                                                   52
   Single glazed, closed                                            62
   Thermal double glazed, closed                                    67
*Assumes typical noise reduction of 5 dB(A) across a wide open window, 7 dB(A) across partially closed, 20 dB(A)
single glazed, closed and 25 dB(A) thermal double glazed and closed.

Based on the above, an external night-time noise level assessment criterion for instantaneous noise sources
of LAmax 52 dB(A), for partially closed windows, is proposed for the project in order to assist with the assessment
and management of night time noise impacts. A limit of LAmax 52 dB(A) is also in line with the criteria of the
NSW Noise Policy for Industry.

5.3            Road Traffic Noise
Noosa Council requested that road traffic noise be assessed for Walter Hay Drive. Applicable noise criteria
can be found within theQueensland Development Code Part MP 4.4 - 'Buildings in a Transport Noise Corridor'
August 2015 (QDC).

5.3.1          Queensland Development Code MP4.4 – Road Traffic Noise
The Queensland Development Code Part MP 4.4 - 'Buildings in a Transport Noise Corridor' August 2015 (QDC)
specifies Noise Categories to ensure that habitable rooms of residential buildings are adequately protected
from transport noise over a 10-year planning horizon.

The Noise Categories list the minimum acoustic RW ratings for each building component to comply with the
indoor sound levels as outlined in Australian Standard AS21071. Details regarding the noise categories and
acceptable forms of construction can be found within Schedule 1 and 2 of the QDC document (see 0). The
triggers for each noise category are summarised in Table 12.




1 AS NZS 2107:2016. Acoustics - Recommended design sound levels and reverberation times for building interiors




Site: Eenie Creek Road, Noosaville                                                                                 18
Reference: 22BRA0078 R01_4