Noise Level Assessment Report for Noosa Quad Bike Tours MCU12/0012

Noosa Quad Bike Tours
Environmental Noise Level Assessment of Quad Bike Rider Competency Assessment Circuit,
298 Tablelands Road, Cooran                                                                            Page 11 of 21




Recovery Vehicle and Voices

Recovery Vehicle


In accordance with the results of the source noise level measurements detailed in Table 4 the
recovery vehicle (Kawasaki Mule) at normal operating revs is 1.3 dB(A) LA1O.T greater than the
                                                                                                             ~oise
of one quad bike ridden by an experienced rider. Based on the noise levels calculated in Table 5 the
noise level of this recovery vehicle, from the competency assessment circuit at the closest adjoining
residences, would be:

         268 Tablelands Road:                 30.5 + 1.3   =   31.8 dB(A) LA10,T;
     .   295 Tablelands Road:                 27.1 + 1.3   =   28.4 dB(A) LA10,T;
     .   374 Tablelands Road:                 -22.2 + 1.3 = -23.5 dB(A) LA10,T.


This recovery vehicle is road registered and is currently ridden by the owner up and down Tablelands
Road to visit his neighbours. Therefore it is a noise source which is already present in the area and
should not require any noise consideration with respect to the quad bike tours, as it is not introducing
a new noise source.



Voices


The noise of peoples voices talking and laughing has been previously assessment by the consultant
at a number of different venues, with a source noise level of approximately 60 dB(A) LA10,adj,[email protected] is the source noise for a group of at least 15 to 20 people talking and laughing, which is more
than would be present at the competency assessment circuit at anyone time.


This source noise is 6 dB(A) and 4 dB(A) LA10,adj,T less than the noise of one quad bike with an
experienced and inexperienced rider respectively on the competency assessment circuit. The
additive effect of the noise of people laughing and talking (to quad bike/s on the competency
 ass_essment circuit) would be s; 1 dB(A), with + 1 dB(A) at the closest residential being the worst case
 scenario.



State of Compliance


For the daytime period the average background noise level was 37.6 dB(A) LA90,T. For steady state
                                                                                                    limit of
noise a commonly applied daytime noise limit criteria is ’background + 5 dB(A)’, giving a noise
                        noise limit, expressed    the LA1O,adj,T is complied with by all potential noise
43 dB(A). This daytime                         as

sources associated with the quad bike competency assessment
                                                                    circuit.


                                                                                            2008 defines a
To minimise effects of ’background creep’ to Environmental Protection (Noise)Policy
                                           that the  existing background  LA90 noise level is not exceeded
criteria for steady state noise, requiring
                      noise level. This  legislation post  dates the background  creep  criteria detailed in
by the source LA90,T
the Ecoaccess Guideline titled Planning for Noise Control, dated 2004, and is the current applicable
criteria for the assessment of ’background creep’.

The daytime background noise level was an average (over the four days of assessment, including
                                                                               36.4 dB(A) LA90,T.
weekday and weekend) of 37.6 dB(A) LA90,T, with the lowest daily average being
                                                                                                in Table 5, is
The source noise level for the quad bikes, calculated to the closest adjoining residences
                                                              the ’background plus    allowance’  noise limit
expressed as the LA10,adj,T, to enable direct comparison   to

criteria. From Table 4 the LA90,T source  noise  levels, compared   to the LA10,T source  noise  levels, were

                                           and  inexperienced   quad  bike riders  respectively.  Once   these
9.6 and 13.3 dB(A) less  for  experienced
             are made to the noise levels detailed in Table 5 the background creep
                                                                                          criteria of the
 adjustments
 Environmental Protection (Noise)Policy 2008 is complied with.




                                                                         Our reference: R12054/D2670/Rev.1/23.07.2012
 David Moore & Associates Pty Ltd