Att6 - Noise Impact Assessment

Christian Youth Council
Environmental Noise Level Impact Assessment for Proposed Extensions to CYC Youth Camp,
48 Kabi Road, Cootharaba                                                                              Page 10 of 22



    •    time varying noise (vehicle movements, children/youth, buses, trucks, etc):
             o daytime:           29 + 5 = 34 dB(A) LAeq,adj,T;
             o evening:           24 + 5 = 29 dB(A) LAeq,adj,T;
             o night-time:        23 + 5 = 28 dB(A) LAeq,adj,T.


SOURCE NOISE LEVELS

Typical source noise levels for the CYC Noosa Campsite are:

    •    vehicles (10 to 15 kph speed):
             o passenger:
                     ▪ driving:               40 dB(A) LAeq,adj,T @ 8m;
                     ▪ door close:            50 dB(A) LAeq,adj,T @ 8m;
                     ▪ engine start:          50 dB(A) LAeq,adj,T @ 8m;
              o   bus idling, driving off and arriving at parking bay, including air brakes:
                                             65 dB(A) LAeq,adj,T @ 8 m;
              o MRV truck driving and unloading, including air brakes:
                                             67 dB(A) LAeq,adj,T @ 8 m;
              o waste collection vehicle driving, emptying waste receptacles and departing:
                                             68 dB(A) LAeq,adj,T @ 8m;
    •    children/youth playing:
              o 10 children/youth:           61 dB(A) LAeq,adj,T @ 8m;
              o 50 children/youth:           68 dB(A) LAeq,adj,T @ 8m;
              o 100 children/youth:          71 dB(A) LAeq,adj,T @ 8m;
    •    basketball match, including umpires whistle and yelling and screaming and cheering:
                                             65 dB(A) LAeq,adj,T @ 8m;
    •    large air-conditioning unit:        54 dB(A) LAeq,adj,T @ 8m;
    •    kitchen exhaust fan:                50 dB(A) LAeq,adj,[email protected] respect to the above noise sources, as appropriate all of them have been adjusted for tonality
and/or impulsiveness.


NOISE LEVEL IMPACT

The closest residences are denoted R1 to R5 inclusive at Figure 1. For the above nominated potential
noise sources, the closest possible location for each noise source on the subject site has been
considered relative to each of the above closest residences.

Compliance with the noise limits at the above closest residences will also result in noise limit
compliance at all other residences.


R1 – Closest Residence to North-West

At the closest residence to the north-west the above noise sources will be:

    •    vehicles (10 to 15 kph speed):
             o passenger:
                     ▪ driving:               40 – 32 (310m distance) – 7 (ground) = 1 dB(A) LAeq,adj,T;
                     ▪ door close:            50 – 32 – 7 = 11 dB(A) LAeq,adj,T;
                     ▪ engine start:          50 – 32 – 7 = 11 dB(A) LAeq,adj,T;
              o    bus idling, driving off and arriving at parking bay, including air brakes:
                                              65 – 32 (310m distance) – 7 (ground) = 26 dB(A) LAeq,adj,T;
              o    MRV truck driving and unloading, including air brakes:
                                              67 – 32 (310m distance) – 7 (ground) = 28 dB(A) LAeq,adj,T;



David Moore & Associates Pty Ltd                                  Our reference: R22072.docx/D3681/Rev.0/25.08.2022