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 10 of 24




At the closest adjoining residences to the north-east the noise of people laughing and talking would
be:

•   covered communal area:           54 dB(A) LAeq,adj,T @ 8 m – 12 (distance) – 8 (barrier effect of
                                     backpacker accommodation building and/or acoustic barrier) = 34
                                     dB(A) LAeq,adj,.T;

•   outdoor area:                    54 dB(A) LAeq,adj,T @ 8 m – 13 (distance) – 8 (barrier effect of
                                     backpacker accommodation building and/or acoustic barrier) = 33
                                     dB(A) LAeq,adj,T.

The noise limits for the above noise source, 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.

All of the above noise limits are complied with for the complete 24-hour day, with no additional noise
control measures required, for the roofed communal area and open communal area.

The only other possible source of people noise is with respect to the Manager’s Unit. If a limited
number of people (2 or 3) were outside the Manager’s Unit sliding glass door talking then their
anticipated noise level would be 50 dB(A) LAeq,adj,T @ 8 metres. At the closest residences to the north-
east this would be:
    • 50 dB(A) LAeq,adj,T @ 8 metres – 4 (distance) – 8 (acoustic barrier) = 38 dB(A) LAeq,adj,T, which
         complies with the noise limits for the complete 24-hour day.


Plant Noise

Plant noise from the proposed backpacker accommodation could include airconditioning units. Whilst
at the time of preparing this report no detail was available with respect to plant it has been assumed
that the 6-bed Dorms would be airconditioned, along with the Manager and Staff facilities and the
cinema. Based on previous noise assessments conducted by the consultant typical airconditioner
noise levels are 66 dB(A) LWA.

At the closest adjoining residence to the north-east the noise level of the airconditioning units,
assuming a total of 4 units (dorms × 2, manager × 2) would be:

•   dorm (20m):             66 dB(A) LWA – 34 (distance) – 8 (acoustic barrier) = 24 dB(A);
•   dorm (25m):             66 dB(A) LWA – 36 (distance) – 8 (acoustic barrier) = 22 dB(A);
•   Manager’s Unit:         66 dB(A) LWA + 3 (two units) – 32 (distance) – 8 (acoustic barrier) = 29 dB(A);
•   combined:               24 + 22 + 29 = 31 dB(A) LA90,T.

The above calculations include an allowance for a 1.8 metre high acoustic barrier on the common
boundary between the subject site and the adjoining residences to the north-east.

The noise limits for plant noise at the adjoining residences to the north-east are:

•   daytime:    42 dB(A);
•   evening:    42 dB(A);
•   night-time: 37 dB(A).

The noise limits for the complete 24-hour day are complied with at the closest residences to the north-
west, with a 1.8 metre high acoustic barrier in place.




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