MCU16/0079 Appendix F - Environmental Noise Imact Assessment

3.4      Attended Background Measurement Methodology and Results
Attended background noise level surveys were conducted directly across Pelican Street from the
logger location. Refer to Figure 2 in Appendix A for the measurement location.

Measurements were conducted with a Rion 29E Octave Band Sound Level Meter set in “C” Weight
Fast Response, with the microphone approximately 1.5m above ground level.

Measurements were conducted generally in accordance with Australian Standard AS 1055:1997 –
“Acoustics-Description and measurement of environmental noise”.

The operation of the sound level equipment was field calibrated before and after the measurement
session, with no significant drift from the reference signal recorded.

Weather conditions during the test were fine and calm, with a temperature of approximately 22ºC.

Table 2 below presents the adjusted background noise levels recorded at the measurement location.
The background levels presented in Table 2 below have been adjusted to closer reflect the minima
background levels presented in Table 1 of Section 3.3.

                                                     Short-term SPL dB(C) Hz Octave Band Centre
  Octave Band Noise Measurements                                     Frequencies
                                                   63     125    250    500    1k     2k     AP
  Night-time L90 Ambient Noise Level               48     43     39     35      33    27      50


       Table 2: Measured LC90 octave band ambient noise levels at the measurement location.




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