RFI accoustic updated 2016

                                                                                          ACOUSTICS & AIR QUALITY

QDC Mandatory Part (MP) 4.4 relates to new buildings in transport noise corridors. This
mandatory Code deals with buildings within residential developments close to state-controlled
roads and railways. MP 4.4 sets mandatory construction standards for new residential
development, or additions to existing residential development, within a Transport Noise Corridor.
The Code is only intended to be applicable to gazetted Transport Noise Corridors, however, ASK
has been advised that it also applies to non-gazetted railway lines.
The noise level categories extend out to 57 dBA L10 (18 hour) for roads and 69 dBA Lmax for
railway lines.


4.4   Noosa Shire Council

The Noosa Shire Council Noosa Plan includes the following relevant noise requirements for
reconfiguration of a lot in Table 4.1.


Table 4.1 Noosa Shire Council Road and Rail Noise Criteria

              Specific Outcome                                   Probable Solution
14.193 Road and rail corridors
O31 Noise sensitive uses including residential    S31.1 Noise sensitive uses including
uses are not subjected to high traffic noise      residential uses are separated by a minimum
levels from the major road network or rail        of—
corridors.                                        a) 40m from the property boundary of roads
                                                  within the major road network; and
                                                  b) 80m from the property boundary of rail
                                                  corridors;
                                                  OR
                                                  S31.2 Development in the vicinity of road
                                                  corridors meets the following external design
                                                  criteria for roads in the major road network—
                                                  a) 54dBA L10 (18hours) based on predicted traffic
                                                  volumes ten years hence;
                                                  AND
                                                  S31.3 Development in the vicinity of rail
                                                  corridors meets the following external design
                                                  level noise criteria—
                                                  a) 65dBA, assessed as the 24hour average
                                                  equivalent continuous A-weighted sound
                                                  pressure level; and
                                                  b) 87dBA, assessed as a single event
                                                  maximum sound pressure level.




It is understood that the site does not comply with solution S31.1 and therefore should comply
with S31.2 and S31.3. However, a recent conversation with a Noosa Shire Council officer
regarding the road traffic noise criteria revealed a concern with the nominated limit. The
nominated limit of 54 dBA is significantly lower than the state road noise criteria and thus would
result in higher noise barriers, which are unlikely to be acceptable to Council. Therefore, with
respect to road noise it is proposed to utilise the state road noise criteria.


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