Appendices 6 SMP, 7 Bushfire & 8 Noise impact - Email 3 of 4 - MCU16/0153 & REC16/0041

8.            Peregian Beach Community Kindergarten Noise
              Assessment
8.1           Overview
The Peregian Beach Community Kindergarten is located to the north of the subject site as indicated in
Figure 2.1. The centre of the outdoor play areas are located approximately 25m from the boundary of the
subject site. Noise emissions from outdoor play areas are required to be assessed.
It is understood that the kindergarten has 22 children aged between 2.5 and 4.5 year old on any one day,
and operates between the hours of 8.45pm and 2:45pm.

8.2           Noise Source Data
Noise emissions from children in outdoor play areas have been predicted at the nearest sensitive receivers
using the following sound power levels (Lw) for a group of 10 children:
      2‐3 years general activity in outdoor play areas: 85 dBA Lw,eq
      3‐6 years general activity in outdoor play areas: 87 dBA Lw,eq
The nominated 3‐6 years sound power levels are considered appropriate for this assessment.

8.3           Noise Criteria
As discussed in Section 4, it is proposed to adopt the acoustic quality objectives as noise criteria for the
assessment of noise immissions onto the development, these are as follows:
    Daytime and Evening: 42 dBA LAeq,adj,1hr, 47 dBA LA10,adj,1hr and 52 dBA LA1,adj,1hr.
    Night: 37 dBA LAeq,adj,1hr, 42 dBA LA10,adj,1hr and 47 dBA LA1,adj,1hr.


8.4           Predicted Noise Levels
Based on the nominated assumptions, the predicted average noise levels at the proposed houses (25m
from the centre of the outdoor area) are 54dBA Leq.
The predicted noise levels exceed the nominated external acoustic quality objective criterion of 42 dBA Leq
during the daytime period. With the external glazing closed, a noise reduction of 20dBA is anticipated
across the facade. Therefore, in order to achieve the internal acoustic quality objective criterion of 35 dBA
Leq the external glazing would simply need to be closed.
To achieve the nominated internal noise criteria, will require external openings to be closed when these
habitable rooms are occupied. Therefore, an air‐conditioning/mechanical ventilation system that does not
degrade the internal acoustic environment or the sound isolation of the building envelope, and also meets
the ventilation requirements of the Building Code of Australia may need to be installed.
Therefore, no further mitigation measures are nominated to reduce the potential noise impacts from the
Peregian Beach Kindergarten.




8816R01V01.docx                                                                                           22