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 26 of 35



                      APPENDIX A: AMBIENT NOISE MEASUREMENT EQUIPMENT

Measurement Equipment

The following equipment was used to conduct the 4-day ambient noise level study at Monitoring
Location A:

   Bruel and Kjaer Type 2250 L Hand Held Analyzer – Serial No. 3004552, with Type BZ 7131, BZ
    7132 and BZ 7133 Software and Prepolarised free-field ½” microphone, Type 4189, Serial No.
    2879996;

   Bruel and Kjaer Type 3592 outdoor microphone kit, including Type UA1404 outdoor microphone;

   Bruel and Kjaer Type AO 0442 ten metre microphone extension cable; and

   Bruel and Kjaer Type 4231 Sound Level Calibrator, Serial No. 3011409.

All of the above equipment is Type 1 in accordance with the requirements of Australian Standard AS
1259-1990, Acoustics – Sound Level Meters, as required by Australian Standard AS 1055-2018.

Measurement Equipment Settings

The above equipment was used with the following settings:

   Detector:                         RMS
   Time Weighting:                   FAST
   Frequency Weighting:              A
   Sound Incidence:                  FRONTAL
   Microphone sensitivity:           40.012 mV/Pa


Calibration

The sound level meter was calibrated to the required value of 93.8 dB at 1000 Hz immediately before
and after the noise level measurements were conducted. At no time was an adjustment of more than
0.5 dB required. This complies with the requirements of the Australian Standard.


Monitoring Location

Monitoring location A was on the subject site (adjacent the northern boundary of 54 Elm Street)
approximately 7.6 metres inside the Elm Street boundary with the microphone elevated 1.6 metres,
approximately 23 metres from the centre of traffic on Elm Street and 47 metres to the centre of the
railway lines. Refer Figure 1 for further detail.


Atmospheric Conditions

Atmospheric conditions generally complied with the requirements of the Australian Standard for the
duration of the ambient noise assessment.




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