MCU14/0056 Acoustic report Att H - Information response

6 Conclusion
MRG Environmental conducted a noise impact assessment for the proposed mixed use development
at Myall Street, Cooroy. The assessment was conducted to assess noise emanating from
surrounding state controlled roads being the Bruce Highway and Cooroy Connection Road and the
proposed mixed use development and recommend treatment to achieve the nominated noise level
criteria.

Road traffic noise impacting external facades/formal open space was assessed using ‘Transport and
Main Roads Policy for Development on Land Affected by Environmental Emissions from Transport
and Transport Infrastructure Version 2, 10 May 2013’ (DLAEETTI)(TMR, 2013). Internal acoustic
amenity was assessed by the revision of the QDC MP4.4 noise categories for each cabin/site office.
Commercial noise was assessed using ‘background plus’ and sleep disturbance criteria during the
nominated operational hours.

The results of the assessment are as follows:

Road Traffic Noise

         Construction of acoustic barriers as per Figure 4.2. Acoustic barriers should be solid and
          continuous with negligible gaps and constructed to meet TMRs MRS15 and MRTS15.
         Incorporate facade treatments consistent with QDC MP4.4 noise categories as presented in
          Table 4.4 for cabins/site office.

Commercial Noise

         Construction of acoustic barriers as per Figure 5.1. The barriers should be solid and
          continuous with negligible gaps and a minimum surface density of 12.5 kg/m2.
         Deliveries and refuse collection (including of fuel) should be during the daytime and evening
          (7:00 am to 10:00 pm).
         Mechanical plant for the purposes of assessment was assumed to determine a benchmark as
          the mechanical plant for the proposed development is yet to be selected. It is proposed that
          during the detailed stages of the project, an assessment of the mechanical plant noise
          emissions from the car wash, fast food and service station be conducted using the actual
          plant model selections and installation arrangements be made to ensure that the nominated
          limits are met. Therefore noise limits are proposed to inform the selection of mechanical
          plant for the development. Table 5.4 presents noise limits to be met at the nearest existing
          sensitive receivers to the proposed development.
         Carwash pumps and water treatment should be located within an enclosed building.
         Carwash vacuums should be selected to be at or below the estimated sound power levels
          nominated within Table 5.1. If the carwash vacuums are above this value then additional
          acoustic mitigation (e.g. localised screening) may be required and would be determined with
          a revised assessment.



0009-R2-01 VerveBD Mixed Use Cooroy Noise Report.docx                                                30
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