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 19 of 36



                                                    Table 9
  Calculated Ultimate (2034) Traffic Noise Level at Northern Facade of Unit 3, Receptor 1.8 m high, Facade
                                                  Corrected

                                Description                                      Traffic Noise Level, dB(A) LA10,18h

 Base traffic noise level, 10208 vpd, 12855 vp18h total                                           68.9
 7.9% CV @ 60 kph                                                                                 +0.5
 Road gradient (0%)                                                                                 0
 Separation distance (35m)                                                                        -4.1
 Ground absorption                                                                                -3.1
 Façade correction                                                                                +2.5
 Road surface                                                                                     +1.0
 Qld conditions                                                                                   -1.7
 Barrier                                                                                            0
 Angle of view (700)                                                                              -4.1
 TOTAL:                                                                                           59.9


Based on the calculations detailed in Tables 7, 8 and 9 an acoustic barrier is required to provide traffic
noise control to the following Level 1 facades:

     •     Unit 1 western and northern facades;
     •     Unit 2 northern facade.

All other Level 1 facades comply with the ultimate traffic noise limit if 60 dB(A) L A10,18H. Refer to Noise
Control section of this report for detail of the required acoustic barrier.

Habitable Rooms, Level 1 and 2

In accordance with PO41 for ground floor habitable rooms (Level 1 for this development) and PO43 for
upper level habitable rooms (Level 2 for this development) the internal ultimate traffic noise level must
not exceed 35 dB(A) Leq (1 hour) (maximum over 24 hours). This is equivalent to complying with the
requirements of Queensland Development Code Mandatory Part 4.4, Building in a Transport Noise
Corridor.

In accordance with the Queensland Development Code, namely MP4.4, the following road traffic and
rail noise categories are described (for the control of road traffic and rail noise to habitable rooms):

                                                 Level of transport noise
                                              (LA10,18H) for State controlled     Single event maximum noise
                 Noise Category
                                               roads and designated local            (LAmax) for railway land
                                                    government roads
                   Category 4                           ≥ 73 dB(A)                          ≥ 85 dB(A)
                   Category 3                         68 – 72 dB(A)                       80 – 84 dB(A)
                   Category 2                         63 – 67 dB(A)                       75 – 79 dB(A)
                   Category 1                         58 – 62 dB(A)                       70 – 74 dB(A)
                   Category 0                           ≤ 57 dB(A)                          ≤ 69 dB(A)




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