Appendix F- Acousitc Report · MCU21/0117.01

Cooroy Villas Pty Ltd
Environmental Traffic and Rail Noise Level Impact Assessment for Proposed Residential Unit Development,
54 Elm Street and 5 Pearl Street, Cooroy                                                                    Page 12 of 36


                                                  Table 1
                  Maximum Rail Single Event Passby Noise Levels from Monitoring Location A
           Time            Maximum Single Event Rail Passby Noise Level, dB(A)
         1000-1100
         1100-1200         68.7
         1200-1300
         1300-1400         67.8
         1400-1500         67.7, 75.1, 70.6
         1500-1600
         1600-1700
         1700-1800
         1800-1900
         1900-2000         68.4
         2000-2100         68.4
         2100-2200
         2200-2300         76.5, 80.7
         2300-2400         79.2

All of the above noise level measurements were free-field, measured from the subject site from
monitoring location A approx. 47m from centre of the train tracks.

From the above single event maximum rail noise levels the fifteen highest values are:

     •     Wednesday 2nd June: 78.4, 75.9, 82.3, 79.3, 79.2, 76.5, 68.9, 79.3, 68.0, 69.1, 70.6, 69.0,
                               72.7, 80.2 and 79.2 dB(A), average = 75.2 dB(A);
     •     Thursday 3rd June:  77.9, 79.9, 78.1, 79.6, 80.4, 71.3, 69.2, 68.7, 75.1, 70.6, 68.4, 68.4,
                               76.5, 80.7 and 79.2 dB(A), average = 74.9 dB(A).

Ground Floor Private Open Space Noise Levels

The closest private open space to the railway line will be setback from the Elm Street boundary 6
metres, compared to the microphone which was set back 7.6 metres. This difference of 1.6 + 1
(distance that the noise limit applies from the private open space) = 2.6 metres would account for an
increase in rail noise level at the closest private open space of approximately:

    •     0.6 dB(A) single event maximum;
    •     0.3 dB(A) LAeq,24H.

The private open space noise criteria are free field, LAeq,24H noise limit of 62 dB(A) and single event
maximum rail passby noise limit of 84 dB(A). At the closest private open space of the subject site to the
railway line (Unit 1 Terrace) the free field rail noise levels are:

    •     54.9 + 0.3 = 55.2 dB(A) LAeq,24h; and
    •     75.2 + 0.6 = 76.1 dB(A) single event maximum rail passby noise.

Both of the above comply with the noise limit criteria for private open space.




David Moore & Associates Pty Ltd                                          Our reference: R23089.docx/D3819/Rev.0/17.01.24