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Appendix 4 - Noise impact assessment
CONSULTING ACOUSTICAL ENGINEERS
ABN 22 180 702 408
PO Box 700 Margate Beach QLD 4019 AUSTRALIA
Mob: 0420 935 874
Email: [email protected] Website: www.alphaacoustics.com.au
To: Belo Developments Email: [email protected]
Attention: Djorde Belosevic
Reference: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
PROPOSED SERVICE STATION
REDEVELOPMENT
NOISE IMPACT
ASSESSMENT
Date: 5 June, 2019
Number of Pages: 25 (inc)
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Contents
EXECUTIVE SUMMARY .............................................................................................. 4
1. INTRODUCTION ................................................................................................... 5
2. DESCRIPTION OF SITE AND SURROUNDS..................................................... 5
3. EXISTING ACOUSTIC ENVIRONMENT ........................................................... 8
4. PROPOSED USE .................................................................................................. 11
5. NOISE CRITERIA ................................................................................................ 12
Noosa Shire Council Noise Criteria ................................................................................................ 12
Environmental Protection (Noise) Policy ........................................................................................ 12
Sleep Disturbance ............................................................................................................................ 13
Project Specific Noise Criteria ........................................................................................................ 13
6. NOISE ASSESSMENT......................................................................................... 14
7. CONCLUSION ..................................................................................................... 20
APPENDIX A – GLOSSARY OF ACOUSTIC TERMS .............................................. 21
APPENDIX B – DEVELOPMENT PLANS .................................................................. 22
APPENDIX C – SOUNDPLAN MODELLING DATA ................................................ 23
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DOCUMENT CONTROL
Revision No Issue Date Revision Description Author Review
0 07/05/2019 Draft Noise Impact Report MF MF
1 05/06/2019 Revise plans MF MF
DISCLAIMER
This Report by Alpha Acoustics Pty Ltd is prepared for a particular Client and is based on the agreed objective, scope, conditions and
limitations as may be stated in the Executive summary. The Report presents only the information that Alpha Acoustics Pty Ltd believes,
in its professional opinion, is relevant and necessary to describe the issues involved. The Report should not be used for anything other
than the intended purpose and should not be reproduced, presented or reviewed except in full. The intellectual property of this Report
remains with Alpha Acoustics Pty Ltd. The Client is authorised, upon payment to Alpha Acoustics Pty Ltd of the agreed Report
preparation fee, to provide this Report in full to any third party.
Recommendations made in this report are intended to resolve acoustical problems only. We make no claim of expertise in other areas
and draw your attention to the possibility that our recommendations may not meet the structural, fire, thermal, or other aspects of
building construction
We encourage clients to check with us before using materials or equipment that are alternative to those specified in our Acoustical
Report.
The integrity of acoustic structures is very dependent on installation techniques. For example, a small crack between the top of a wall
and a ceiling can reduce the effective sound transmission loss of a wall from Rw 50 to Rw 40. Therefore the use of contractors that are
experienced in acoustic construction is encouraged. Furthermore, two insulation products may have the same thermal R rating but the
sound absorption of one may be entirely deficient, therefore the use of materials and equipment that are supported by acoustic laboratory
test data is encouraged.
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EXECUTIVE SUMMARY
This acoustic report has been prepared to support a Development Application for the proposed redevelopment
of the Noosaville Service Station at the Corner of Mary Street and Weyba Road, Noosaville, Qld 4566. The
development site falls within an existing business zone and is surrounded by residences and commercial
premises.
The proposed use involves the operation of a redeveloped BP service station. The development has the
potential to generate noise emissions at neighbouring dwellings due to car parking and mechanical plant.
Mechanical plant will be located on the ground and the existing hours of operation (5:00am to 10:00pm) will
be maintained. The noise emissions from the site will be reduced due to the relocation and selection of new
ground mounted mechanical plant and boundary noise barriers.
The Acoustic Quality Objectives and the Background Creep requirements of the Environmental Protection
(Noise) Policy 2008 (EPP Noise) and Sleep Disturbance noise criteria described by the World Health
Organisation (WHO) have been used as the assessment criteria for the development.
Noise emissions from the proposed redevelopment have been forecast in this acoustic assessment. Baseline
noise measurements have also been performed near the subject site to help determine background noise levels
in the area and nominate background creep criteria.
Conclusions
• Noise emissions from the operation of the proposed BP redevelopment were forecast to comply with
the noise criteria provided the noise control recommendations in this report are installed.
Recommendations
• Acoustic noise controls as outlined in this report should be constructed as described in Section 6 of
this report.
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1. INTRODUCTION
This acoustic report has been prepared to support a Development Application for the proposed redevelopment
of the Noosaville Service Station at the Corner of Mary Street and Weyba Road, Noosaville, Qld 4566. The
development site falls within an existing business zone and is surrounded by residences and commercial
premises.
The nearest and most affected noise assessment locations include:
• Northern Residences: 255 Weyba Road, Noosaville
• Southern Residences: Blue Fin Court, Noosaville
• Western Commercial: Mary Street, Noosaville
2. DESCRIPTION OF SITE AND SURROUNDS
The subject site is located at the corner of Mary Street and Weyba Road, Noosaville, Qld. The development
site falls within an existing business centre zone and is surrounded by residential and commercial premises.
The general location layout is shown in Figure 2.1. The current zoning map from Noosa Shire Council is
shown in Figure 2.2. A photograph of the noise logger setup and locale is presented in Figures 2.3 and 2.4.
Figure 2.1: Development site, surrounding area and acoustic measurement location (Google)
Measurement Location ML1
Proposed Redevelopment
Measurement Location ML2
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Figure 2.2: Site and surround current zoning © Alpha Acoustics Pty Ltd Page 6 of 25 Doc: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
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Figure 2.3: Noise logger Setup ML1 – Unit 4 – 255 Weyba Road, Noosaville Figure 2.4: Noise logger Setup ML2 – 2/55 Blue Fin Court, Noosaville © Alpha Acoustics Pty Ltd Page 7 of 25 Doc: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
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3. EXISTING ACOUSTIC ENVIRONMENT
An on-site survey was conducted for a period of 7 days, between Saturday 10th December 2016 and Saturday
17th December 2016. The measurement location (ML1) was located adjacent to unit 4 of 255 Weyba Road as
shown in Figure 2.1. The measurement location (ML2) was located in the rear yard of 2/55 Blue Fin Court
as shown in Figure 2.1.
The microphone was placed at a height of 1.5 m at both ML1 and ML2 (see Figure 2.3 and Figure 2.4). The
measured levels are considered free field. Measurement at these locations are considered indicative of the
noise environment adjacent to the measurement locations. The background noise was predominantly made up
of traffic noise along Mary Street and Weyba Road and from the operation of the existing service centre.
All instrumentation used in this assessment holds a current calibration certificate from a certified NATA
calibration laboratory. The following instruments were used to measure the ambient noise levels-
• Rion NL-21 type 2 environmental noise loggers
• Bruel & Kjaer calibrator
Ambient sound pressure levels were measured generally in accordance with Australian Standard
AS1055.1:1997 - ‘Acoustics-Description and measurement of environmental noise - Part 1: General
procedures’. Ambient noise levels were recorded at continuous 15 minute intervals. (Figure 3.1 and
Figure 3.2). Although the EPP noise policy 2008 only requires average background noise levels, rating
background noise levels as described in the DEHP Guideline “Planning for Noise Control” using the tenth
percentile method have been used in this assessment as shown in below. Terms and definitions used in the
report are found in Appendix A.
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Measured Noise Level (dBA) Measured Noise Level (dBA)
10
20
30
40
50
60
70
80
90
0
100
10
20
30
40
50
60
70
80
90
0
100
Day
Thursday 12:15 AM Saturday 12:00 AM
Night
Period
Evening
Thursday 3:15 AM Saturday 3:00 AM
(7am to 6pm)
(10pm to 7am)
(6pm to 10pm)
Thursday 6:15 AM Saturday 6:00 AM
Thursday 9:15 AM Saturday 9:00 AM
Thursday 12:15 PM Saturday 12:00 PM
Thursday 3:15 PM Saturday 3:00 PM
© Alpha Acoustics Pty Ltd
Thursday 6:15 PM Saturday 6:00 PM
Thursday 9:15 PM Saturday 9:00 PM
30
39
46
Friday 12:15 AM Sunday 12:00 AM
Friday 3:15 AM Sunday 3:00 AM
Noise Level
LA90, dB(A)
Friday 6:15 AM Sunday 6:00 AM
Weather Affected
Weather Affected
Rating Background
Friday 9:15 AM Sunday 9:00 AM
Friday 12:15 PM Sunday 12:00 PM
Friday 3:15 PM Sunday 3:00 PM
Friday 6:15 PM Sunday 6:00 PM
Friday 9:15 PM Sunday 9:00 PM
43
46
51
LA90
LA90
Saturday 12:15 AM Monday 12:00 AM
LAeq
Saturday 3:15 AM Monday 3:00 AM
Saturday 6:15 AM Monday 6:00 AM
Saturday 9:15 AM Monday 9:00 AM
Saturday 12:15 PM Monday 12:00 PM
LAeq
Saturday 3:15 PM Monday 3:00 PM
LAeq
Figure 3.1: Existing noise levels at location ML1
Saturday 6:15 PM Monday 6:00 PM
Saturday 9:15 PM Monday 9:00 PM
35
42
47
Summary of averaged noise levels, dB(A) from logging on site.
Doc: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
Sunday 12:15 AM Tuesday 12:00 AM
LA10
Sunday 3:15 AM Tuesday 3:00 AM
(Between - 10/12/2016 & 17/12/2016)
Sunday 6:15 AM Tuesday 6:00 AM
LA10
LA10
Sunday 9:15 AM Tuesday 9:00 AM
Sunday 12:15 PM Tuesday 12:00 PM
Date & Time of Measurements
Date & Time of Measurements
Sunday 3:15 PM Tuesday 3:00 PM
Sunday 6:15 PM Tuesday 6:00 PM
Sunday 9:15 PM Tuesday 9:00 PM
62
59
63
Wednesday 12:00 AM
LA1
Monday 12:15 AM
LAMax
LAMax
Monday 3:15 AM Wednesday 3:00 AM
Ambient Noise Levels Measured At Unit 4 - 255 Weyba Road, Noosaville
Monday 6:15 AM Wednesday 6:00 AM
Monday 9:15 AM Wednesday 9:00 AM
Monday 12:15 PM Wednesday 12:00 PM
Monday 3:15 PM Wednesday 3:00 PM
Monday 6:15 PM Wednesday 6:00 PM
Monday 9:15 PM Wednesday 9:00 PM
76
74
74
Tuesday 12:15 AM Thursday 12:00 AM
LAMax
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Measured Noise Level (dBA) Measured Noise Level (dBA)
10
20
30
40
50
60
70
80
90
0
10
20
30
40
50
60
70
80
90
100
0
100
Day
Thursday 12:15 AM Saturday 12:00 AM
Night
Period
Evening
Thursday 3:15 AM Saturday 3:00 AM
(7am to 6pm)
(10pm to 7am)
(6pm to 10pm)
Thursday 6:15 AM Saturday 6:00 AM
Thursday 9:15 AM Saturday 9:00 AM
Thursday 12:15 PM Saturday 12:00 PM
Thursday 3:15 PM Saturday 3:00 PM
© Alpha Acoustics Pty Ltd
Thursday 6:15 PM Saturday 6:00 PM
Thursday 9:15 PM Saturday 9:00 PM
27
37
46
Friday 12:15 AM Sunday 12:00 AM
Friday 3:15 AM Sunday 3:00 AM
Noise Level
LA90, dB(A)
Friday 6:15 AM Sunday 6:00 AM
Weather Affected
Weather Affected
Rating Background
Friday 9:15 AM Sunday 9:00 AM
Friday 12:15 PM Sunday 12:00 PM
Friday 3:15 PM Sunday 3:00 PM
Friday 6:15 PM Sunday 6:00 PM
Friday 9:15 PM Sunday 9:00 PM
44
48
53
LA90
LA90
Saturday 12:15 AM Monday 12:00 AM
LAeq
Saturday 3:15 AM Monday 3:00 AM
Saturday 6:15 AM Monday 6:00 AM
Saturday 9:15 AM Monday 9:00 AM
Saturday 12:15 PM Monday 12:00 PM
LAeq
Saturday 3:15 PM Monday 3:00 PM
LAeq
Figure 3.2: Existing noise levels at location ML2
Saturday 6:15 PM Monday 6:00 PM
Saturday 9:15 PM Monday 9:00 PM
45
51
55
Summary of averaged noise levels, dB(A) from logging on site.
Doc: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
Sunday 12:15 AM Tuesday 12:00 AM
LA10
(Between - 10/12/2016 & 17/12/2016)
Sunday 3:15 AM Tuesday 3:00 AM
Sunday 6:15 AM Tuesday 6:00 AM
LA10
LA10
Sunday 9:15 AM Tuesday 9:00 AM
Sunday 12:15 PM Tuesday 12:00 PM
Date & Time of Measurements
Date & Time of Measurements
Sunday 3:15 PM Tuesday 3:00 PM
Sunday 6:15 PM Tuesday 6:00 PM
Sunday 9:15 PM Tuesday 9:00 PM
Ambient Noise Levels Measured At 2/55 Blue Fin Court, Noosaville
63
62
65
Wednesday 12:00 AM
LA1
Monday 12:15 AM
LAMax
LAMax
Monday 3:15 AM Wednesday 3:00 AM
Monday 6:15 AM Wednesday 6:00 AM
Monday 9:15 AM Wednesday 9:00 AM
Monday 12:15 PM Wednesday 12:00 PM
Monday 3:15 PM Wednesday 3:00 PM
Monday 6:15 PM Wednesday 6:00 PM
Monday 9:15 PM Wednesday 9:00 PM
73
75
77
Tuesday 12:15 AM Thursday 12:00 AM
LAMax
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4. PROPOSED USE The BP redevelopment is proposed to operate from 5:00am to 10:00 seven days a week. Alpha Acoustics understands that approximately 44 vehicle movements per hour will occur during peak periods (day time and evening) and 8 vehicle movements per hour in the night time. Mechanical plant will be located on the ground. Parking and is provided on site. Figure 4.1: Proposed layout for development © Alpha Acoustics Pty Ltd Page 11 of 25 Doc: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
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5. NOISE CRITERIA
Noosa Shire Council Noise Criteria
The proposed redevelopment site falls within an existing business centre zone and as such the Noosa Shire
Plan / Division 3 / Business Uses Code describes the council criteria for the development as extracted below:
Council does not specify specific noise limits therefore noise emissions are assessed to the state Environmental
Protection (Noise) Policy for sensitive receivers surrounding the redevelopment as described below.
Environmental Protection (Noise) Policy
The Acoustic Quality Objectives and the Background Creep requirements of the Environmental Protection
(Noise) Policy 2008 (EPP Noise) have been used as the assessment criteria for the development. Operational
activities for the proposed use (i.e. vehicle movements, speaker box noise and plant noise) have been assessed
against the Acoustic Quality Objectives as shown in Table 5.1.
Table 5.1: Acoustic Quality Objectives of EPP Noise
Acoustic Quality Objective
Sensitive (Measured at the Receptor) dB(A) Environmental
Time of Day
Receptor Value
LAeq,adj,1hr LA10,adj,1hr LA01,adj,1hr
Dwellings Daytime and evening
50 55 65 Health and wellbeing
(for outdoors) (7am to 10pm)
Dwellings Daytime and evening
35 40 45 Health and wellbeing
(for indoors) (7am to 10pm)
Health and wellbeing
Dwellings Night-time
30 35 40 in relation to the ability
(for indoors) (10pm to 7am)
to sleep
Commercial Health and wellbeing
When activity is open for
and retail 45 in relation to the ability
business to converse
activity
Introduced plant have the potential to increase background noise levels in the area. These have been assessed
against the Background Creep requirements of EPP Noise.
To the extent that it is reasonable to do so, noise from an activity must not be:
• For continuous noise (e.g. fan noise) – Measured by LA90,T more than nil dB(A) greater than the
existing acoustic environment measured by LA90,T.
• For noise that varies over time (i.e. vehicle movements, speakerbox) – Measured by LAeq,adj,T more
than 5 dB(A) greater than the existing acoustic environment measured by LA90,T.
Noise emission limits for the control of background creep, based on measured background levels are shown in
Table 5.2 below.
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Table 5.2: Background creep requirements of EPP Noise
Permitted Noise Emission
Measured
dB(A)
Background
Time of Day
Level Continuously Operating
LA90 dB(A) Time Varying Noise
Plant
LAeq,adj,T
LA90,T
Daytime
(7am to 6pm)
46 46 51
Evening
(6pm to 10pm)
391 39 44
Night
(10pm to 7am)
302 30 35
Note 1: The background noise level at ML2 during the evening was measured at LA90 37 dB(A). Given the background
noise was measured behind a 1.8m high fence, a background noise level of LA90 39 dB(A) as measured at ML1 has been
used in the assessment which conservatively represents the upper level background noise for residences in Blue Fin Court
Note 2: The background noise level at ML2 at night was measured at LA90 27 dB(A). Given the background noise was
measured behind a 1.8m high fence, a background noise level of LA90 30 dB(A) as measured at ML1 has been used in the
assessment which conservatively represents the upper level background noise for residences in Blue Fin Court
Sleep Disturbance
The World Health Organisation (WHO) set out a Sleep disturbance noise criteria in the “WHO
Guidelines for community noise”. Table 1 of that guideline establishes that sleep disturbance can
occur inside bedrooms when the maximum noise level is at LAmax 45 dB(A) (10pm to 7am). In
practice, with a bedroom window open, this internal noise level will be equivalent to an outside
maximum noise level of LAmax 50 to 55 dB(A) [depending on building construction]. It is noted that
the LAmax is generally considered equivalent to the LA01, 1 minute.
Project Specific Noise Criteria
Considering the criteria discussion above, the project specific noise criteria is summarised in
Table 5.3.3 below.
Table 5.3.3: Project Specific Noise Levels
Recommended Nosie Limits dB(A)
Continuously Operating
Time of Day Time Varying Noise Short Duration Events
Plant
LAeq,adj,T LAMax
LA90,T
Daytime and evening
46 dB(A) L90 (Outdoors) 50 dB(A) Leq (Outdoors) N/A
(7am to 10pm)
Daytime and evening
44 dB(A) L90 (outdoors) 45 dB(A) Leq (Outdoors) N/A
(7am to 10pm) 1
Night-time
35 dB(A) L90 (Outdoors) 35 dB(A) Leq (outdoors) 50 dB(A) L90 (Outdoors)
(10pm to 7am) 1
When Commercial in use 50 dB(A) Leq (Outdoors)
Note 1: A conservative 5 dB(A) inside to outside building façade correction has been applied to dwellings and to
commercial uses.
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6. NOISE ASSESSMENT
Operation of the proposed service station redevelopment has the potential to generate noise emissions due to:
• Car movements on site.
• Mechanical plant operating.
• Pump bowser
• Truck refuel / garbage truck
The results of the noise measurements and additional noise data from Alpha Acoustics Pty Ltd and SoundPlan
Sound Library are presented in Table 6.1 below as sound power levels.
Table 6.1: Summary of common noise emissions at the subject site
Knowing the source sound power level (see above Table 6.1), the sound pressure level can be calculated at a
remote location using suitable formulae to account for distance losses, ground absorption, sound barriers,
atmospheric effects, etc.
Noise modelling has been conducted using SoundPLAN v7.0 and the prediction methodology ISO 9613-2:
1996 incorporating manufacturer published sound emission data. We would expect the order of uncertainty to
be in the range of +/- 2 dB(A). The noise model presents all plant operating simultaneously, accordingly the
predictions should be considered a worst case scenario, assuming constant noise levels.
Noise modelling results are presented in Appendix C of this report. Additionally LAeq Noise emissions
modelled in the day / evening period and night for first floor and ground floor after noise controls have been
incorporated are shown in the following figures:
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Figure 6.1 LAeq Day – Ground Floor (after noise controls) Figure 6.2 LAeq Evening – Ground Floor (after noise controls) © Alpha Acoustics Pty Ltd Page 15 of 25 Doc: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
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Figure 6.3 LAeq Night – Ground Floor (after noise controls) © Alpha Acoustics Pty Ltd Page 16 of 25 Doc: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
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Figure 6.4 - LAeq Day – First Floor (after noise controls) Figure 6.5 - LAeq Evening – First Floor (after noise controls) © Alpha Acoustics Pty Ltd Page 17 of 25 Doc: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
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Figure 6.6 - LAeq Night – First Floor (after noise controls) © Alpha Acoustics Pty Ltd Page 18 of 25 Doc: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
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Figure 6.7 – Proposed Noise Controls
3m High Acoustic Barrier
1.8m Entry boundary 1.8m Exit boundary
barrier barrier
Corner Boundary Barrier should be free of gaps and be constructed from a material with minimum surface
mass at least 10kg/m2. Or proprietary noise walls with an acoustic rating of Rw 25. Examples of suitable noise
barrier material include, 25mm thick “lapped and capped” pine timber fence. Barrier to be 3m high vertically
(see Figure 6.7 for location).
Entry and Exit Boundary Barriers should be free of gaps and be constructed from a material with minimum
surface mass at least 10kg/m2. Or proprietary noise walls with an acoustic rating of Rw 25. Examples of
suitable noise barrier material include, 25mm thick “lapped and capped” pine timber fence. Barriers to be a
minimum 1.8m high vertically and terminate 5 m from Weyba Rd or Mary St (see Figure 6.7 for locations).
Truck Movements (garbage and refuelling) should occur between 7:00am and 10:00pm only.
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7. CONCLUSION
This acoustic report has been prepared to support a Development Application for the proposed redevelopment
of the Noosaville Service Station at the Corner of Mary Street and Weyba Road, Noosaville, Qld 4566. The
development site falls within an existing business zone and is surrounded by residences and commercial
premises.
Mechanical plant will be located on the ground and the existing hours of operation (5:00am to 10:00pm) will
be maintained. The noise emissions from the site will be reduced due to the relocation and selection of new
ground mounted mechanical plant and boundary noise barriers.
Conclusions
• Noise emissions from the operation of the proposed service station redevelopment were forecast to
comply with the noise criteria provided the noise control recommendations in this report are installed.
Recommendations
• Acoustic noise controls as outlined in this report should be constructed as described in Section 6 of
this report.
ALPHA ACOUSTICS PTY LTD
(Member Firm of the AAAC)
Matthew Fishburn, BE(Mech) Hons, MAAS, MIEAust, CPEng, RPEQ (14356)
Principal Consulting Acoustical Engineer
for and on behalf of Alpha Acoustics.
NOISE AND VIBRATION ENGINEERS
Mob: 0420 935 874
Email: [email protected]
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APPENDIX A – GLOSSARY OF ACOUSTIC TERMS The following is a brief description of the technical terms used to describe traffic noise to assist in understanding the technical issues presented in this document. Event maximum sound pressure level (LA%,adj,T), Lmax L01 The “Lmax” level is the loudest sample within a measurement period; while the “L01” level is calculated as the noise level equalled and exceeded for 1% of the measurement time, for example 9 seconds in any 15 minute interval. The Lmax and L01 descriptors are appropriate to characterise single events, such as from impulsive or distinctive pass-by noise. However the L01 descriptor provides a better picture of recurring discrete noise events as it removes anomalies from the data (e.g. bird calls close to the microphone). Both of these level can be adjusted for tonality or impulsiveness. Average maximum sound pressure level (LA%,adj, T), L10 The “L10” level is an indicator of “steady-state” noise or intrusive noise conditions from traffic, music and other relatively non-impulsive noise sources. The L10 level is calculated as the noise level equalled and exceeded for 10% the measurement time, for example 90 seconds in any 15 minute interval. The measured L10 time-intervals for day/evening/night are arithmetically averaged to present the “average maximum” levels of the environment for day/evening/night. The level can be adjusted for tonality or impulsiveness. Background sound pressure level (LA90,T), L90 Commonly called the "L90" or "background" level and is an indicator of the quietest times of day, evening or night. The L90 level is calculated as the noise level equalled and exceeded for 90% the measurement time. The measured L90 time- intervals are arithmetically averaged to present the “average background” levels of the environment for day/evening/night. The level is recorded in the absence of any noise under investigation. The level is not adjusted for tonality or impulsiveness. Equivalent Continuous or time average sound pressure level (LAeq,T), Leq Commonly called the "Leq" level it is the logarithmic average noise level from all sources far and near. The maximum 1- hour levels within the day/evening/night time intervals are referenced for building design. The level can be adjusted for tonality. Rated Background Level, RBL The Rated Background Level is the overall single-figure background level representing each assessment period (day/evening/night) over the whole monitoring period. Free-field level A sound level that is measured at a distance of more than 3.5 metres from a wall or facade. © Alpha Acoustics Pty Ltd Page 21 of 25 Doc: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
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APPENDIX B – DEVELOPMENT PLANS © Alpha Acoustics Pty Ltd Page 22 of 25 Doc: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
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APPENDIX C – SOUNDPLAN MODELLING DATA Point Receivers © Alpha Acoustics Pty Ltd Page 23 of 25 Doc: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
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Sources used in Modelling © Alpha Acoustics Pty Ltd Page 24 of 25 Doc: J2192 - Noise Impact Assessment - BP Noosaville (Rev 1).docx
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LAMax calculations
Receiver Usage Fl Dir Lmax,Lim dB(A) Lmax dB(A)
R01 GR GF S 50 34
R01 GR 1.FL S 50 39.2
R02 GR GF E 50 34.7
R02 GR 1.FL E 50 38.3
R03 GR GF NW 50 35.9
R03 GR 1.FL NW 50 41
R04 GR GF SW 50 38.3
R04 GR 1.FL SW 50 47.9
R05 GR GF SE 50 33.6
R05 GR 1.FL SE 50 35.9
R06 GR GF W 50 33
R06 GR 1.FL W 50 35.3
R07 GR GF S 50 34.1
R07 GR 1.FL S 50 36
R08 GR GF SE 50 35.1
R08 GR 1.FL SE 50 38.3
R09 GR GF W 50 35.4
R09 GR 1.FL W 50 38.3
R10 GR GF S 50 34.3
R10 GR 1.FL S 50 38.5
R11 GR GF E 50 35.1
R11 GR 1.FL E 50 38.4
R12 IA GF E n/a 54.3
R12 IA 1.FL E n/a 59.4
R13 IA GF N n/a 52.9
R13 IA 1.FL N n/a 52.8
R14 IA GF N n/a 53.5
R14 IA 1.FL N n/a 53.5
R15 IA GF N n/a 53.7
R15 IA 1.FL N n/a 53.7
R16 IA GF N n/a 53.4
R16 IA 1.FL N n/a 53.4
R17 GR GF N 50 44.1
R17 GR 1.FL N 50 48.3
R18 GR GF N 50 40.7
R18 GR 1.FL N 50 45.1
R19 GR GF N 50 35
R19 GR 1.FL N 50 40.1
R20 GR GF NE 50 38.3
R20 GR 1.FL NE 50 40.5
R21 GR GF NE 50 42.6
R21 GR 1.FL NE 50 43.1
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