MCU12/0023 Development Application Part 2 of 2 Town Planning Report

Ms Leanne Simpson, JFP                                                           20/02/12
Re: Essence of Peregian - Development Application                       L03812/PAK/09-047


In considering the noise impact of outdoor dining upon residential amenity I have
prepared the following calculations.


Noise Criteria

To ensure amenity of noise sensitive receptors is maintained, noise from outdoor
dining (ie voices, clattering of plates/cutlery and glassware) should not exceed
ambient background noise level by more than 5 dB(A).

On the basis of the measured ambient noise levels in the evening period which
averaged 47.7 dB(A) with a minimum of 46.6 dB(A) I propose an assessment
criterion of 47 + 5 = 52 dB(A) to 10pm and 44 + 5 = 49 dB(A) to 12 midnight.

These criteria are considered appropriate for residential areas in proximity to the
south/east and north of the site.


Noise Predictions (At Nearest Residence)

Previous studies of outdoor dining areas with up to 50 persons seated, provides a
source noise level of 55 dB(A) at 30 metres.

Calculating the resultant noise level at the nearest residence being the house to the
southeast across the David Low Way, provides the following:

Eastern 30 m2 Outdoor Dining Area

Distance:        50 metres from closest point of outdoor dining area.

Resultant Noise Level from 30 m2 outdoor area at residence;

Resultant Noise Level = 50.5 dB(A)

This is thus below the adopted conservative criterion of 52 dB(A) to 10pm and above
the 49 dB(A) criterion to 12 midnight. Hence my recommendation is that this outdoor
dining area is not used after 10pm.


Northern 40 m2 Outdoor Dining Area

For the 40 m2 outdoor dining area on the northern facade, the resultant noise level
is calculated to be:

Distance = 70 metres
Screening from building = 8 dB(A)

Resultant Level         =       39.6 dB(A)

This is thus below the adopted conservative criterion of 52 dB(A) to 10pm and 49
dB(A) to 12 midnight.

To further the calculations, I have considered the additive noise of the internal areas
of two adjacent restaurant tenancies both with doors open to David Low Way, in
addition to the 30 m2 and 40 m2 outdoor dining areas. My predictions are as follows:


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