October 2018 Noise Report · 132007.2446.03

Tamobrojo Pty Ltd
Environmental Noise Level Impact Assessment for Proposed Expansion of Existing Backpacker
Accommodation at 102 Pacific Avenue to Include 106 Pacific Avenue, Sunshine Beach                        Page 9 of 24




NOISE FROM SUBJECT SITE


On-Site Vehicle Noise

From previous noise level measurements conducted by the consultant, typical on-site vehicle noise
levels (time varying noise source) would be:

•   car driving on driveway:         46 dB(A) LAeq,adj,T @ 8 m;
•   car door closing:                48 dB(A) LAeq,adj,T @ 30 m;
•   car engine starting:             48 dB(A) LAeq,adj,T @ 30 m.

At the closest adjoining residence to the north-east the primary potential noise impact from the noise
of people and airconditioning units, as the closest on-site vehicle activities – cars driving on the
subject site driveway and car parking activities – engines starting and doors closing, is adjacent to
Pacific Avenue.

For the closest adjoining residences to the north-east, with no additional noise control measures in
place, vehicle noise level impact would be:

•   car driving on driveway:         46 dB(A) LAeq,adj,T @ 8 m – 12 (distance) = 34 dB(A) LAeq,adj,T;
•   car door closing:                48 dB(A) LAeq,adj,T @ 30 m – 1 (distance) = 47 dB(A) LAeq,adj,T;
•   car engine starting:             48 dB(A) LAeq,adj,T @ 30 m – 1 (distance) = 47 dB(A) LAeq,adj,T.

The noise limits for the above noise sources, at the adjoining residences to the north-east, are:

    •    daytime:           47 dB(A) LAeq,adj,T;
    •    evening:           47 dB(A) LAeq,adj,T;
    •    night-time:        42 dB(A) LAeq,adj,T.

With no noise control measures in place these noise limits are exceeded by:

    •    daytime:           0 dB(A) LAeq,adj,T;
    •    evening:           0 dB(A) LAeq,adj,T;
    •    night-time:        5 dB(A) LAeq,adj,T.

Therefore, based on the above, to control the night-time noise limit exceedance to the noise limit an
acoustic barrier is required on the north-east boundary of the subject site. By path difference
calculation this acoustic barrier must be a minimum 1.5 metres high.

With the acoustic barrier in place all vehicle activity noise complies with the noise limits for the
complete 24-hour day.


People Laughing and Talking

From previous source noise assessments conducted by the consultant typical noise levels for people
laughing and talking would be:

•   people laughing and talking:               54 dB(A) LAeq,adj,T @ 8 metres.

For the proposed backpacker accommodation the primary area where guests would be laughing and
talking would be in the (covered) communal area and the outdoor communal area, adjacent to Pacific
Avenue. The pool and most of the deck adjacent to the pool are existing and, therefore, do not require
consideration.




David Moore & Associates Pty Ltd                                            Our reference: R18066/D3310/Rev.0/1.10.18