MCU14/0056 Acoustic report Att H - Information response

Corridor. It should be noted that land within a transport noise corridor is defined under Chapter 8B
of the Building Act 1975.

Queensland Development Code (QDC) MP 4.4 Buildings in a Transport Noise Corridor was gazetted
on 1 September 2010. The purpose of QDC MP 4.4 is to ensure habitable rooms of Class 1, 2, 3 and 4
buildings located in a Transport Noise Corridor are designed and constructed to reduce transport
noise.

The objective of this noise assessment is to demonstrate which noise category is applicable to each
of the proposed allotments. The criteria for determining the relevant noise category and facade
treatments are given below in Table 2.3 and offer an alternative method to criterion nominated in
Table 2.2 (DSDIP, 2013).

                                                Table 2.3: Noise Category Levels
                     Noise Category                               Level of transport noise * (LA10, 18hr) for State-controlled
                                                                      roads and designated local government roads
                             4                                                           ≥ 73 dB(A)
                             3                                                          68 – 72 dB(A
                             2                                                         63 – 67 dB(A)
                             1                                                         58 – 62 dB(A)
                             0                                                           ≤ 57 dB(A)
* measured at 1 m from the facade of the proposed or existing building.

TMR’s Engineering and Technology Branch advised that the caravan spaces be designed to meet the
external facade limit given that the operator has no control over the design of the patron’s caravans.

2.2 Commercial Noise Criteria

The ‘Background Plus’ noise limits are widely accepted in Queensland as being appropriate noise
limits for minimising the risk of noise complaints. ‘Background Plus’ noise limits are regularly used
by DERM when specifying noise criteria or assessing noise complaints. Traditionally ‘Background
Plus’ criteria have been applied as presented in Table 2.4.

                                    Table 2.4: Informal ‘Background Plus’ Noise Criteria
Noise Sensitive Place
Daytime 7am - 6pm                                                     LAmax,adj ≤ Background noise level plus 5 dB(A)
Evening 6pm - 10pm                                                    LAmax,adj ≤ Background noise level plus 5 dB(A)
Nighttime 10pm - 7am                                                  LAmax,adj ≤ Background noise level plus 3 dB(A)
Noise Sensitive Commercial Place
Daytime 7am - 6pm                                                     LAmax,adj ≤ Background noise level plus 10 dB(A)
Evening 6pm - 10pm                                                    LAmax,adj ≤ Background noise level plus 10 dB(A)
Nighttime 10pm - 7am                                                  LAmax,adj ≤ Background noise level plus 8 dB(A)
Note: Background noise level is defined as LAbg,T.

These limits are based on superseded AS 1055.2:1989 ‘Acoustics-Description and measurement of
environmental noise Part 2: Application to specific situations’ reference:

           Where LAmax,adj,T is greater than LAbg,T, the noise is likely to be discernible and if the difference
           is substantial enough the noise will be annoying.

0009-R2-01 VerveBD Mixed Use Cooroy Noise Report.docx                                                                            5
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