Attachment 7 - Acoustic Report

7. Road Traffic Noise Assessment
This section assesses road traffic noise associated with Myall Street and the Bruce Highway for the
ten year planning horizon.


7.1   Traffic Volumes
Current and future traffic volumes were obtained from Queensland Transport and Main Roads Traffic
Census and are presented in the table below.

                                               Table 8: Traffic Volumes
                                                 2019 Predicted       2029 Predicted      Percentage of Heavy
           Location             2018 AADT
                                                     AADT                 AADT                  Vehicles
          Myall Street             7,960                 7,975              9,721               7.91%
        Bruce Highway              25,074             25,826               34,708               16.37%



7.2   Road Traffic Noise Verification
To ensure the CoRTN noise model is accurate, a verification model of the predicted L A10(18hr) was
created and compared to the measured noise level. The CoRTN method allows a 2dB(A) variation
from the predicted and measured level, if the variation exceeds 2dB(A) a correction to the predicted
level is required.
                            Table 9: Comparison of Measured and Predicted Noise Levels
                                           Measured LA10(18hr)     Predicted LA10(18hr)
                 Location                                                                    Correction
                                                dB(A)                    dB(A)
                Myall Street                      64.7                    65.0                   0




 2019253 R01A Lot 2 & 3 Myall Street, Cooroy RTN ENV.docx © Acoustic Works 2019                           Page 13