29 Rowe St, Eastwood NSW Ground Floor - DA Acoustic Assessment

MATTHEW PALAVIDIS

VICTOR FATTORETTO

MATTHEW SHIELDS

SYDNEY ABN 98 145 324 714

9 Sarah St

MASCOT NSW 2020

(02) 8339 8000

www.acousticlogic.com.au

The information in this document is the property of Acoustic Logic Pty Ltd 98 145 324 714 and shall be returned on demand. It is

issued on the condition that, except with our written permission, it must not be reproduced, copied or communicated to any other

party nor be used for any purpose other than that stated in particular enquiry, order or contract with which it is issued.

\\SYD-DC01\data\Australia\Jobs\2021\20210684\20210684.2\20210624LAA_R0_Ground_Floor_-

_DA_Acoustic_Assessment.docx

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29 Rowe St, Eastwood NSW

Ground Floor - DA Acoustic Assessment



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Project ID 20210684.2

Document Title Ground Floor - DA Acoustic Assessment

Attention To Haemoon Family Trust

Attn:Lucas Hong

Revision Date Document Reference Prepared By Checked By Approved

By

0 24/06/2021 20210684.2/2406A/R0/LA LA SN



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TABLE OF CONTENTS

1 INTRODUCTION ...................................................................................................................... 4

2 SITE DESCRIPTION AND PROPOSAL ..................................................................................... 5

3 EXISTING ACOUSTIC ENVIRONMENT ................................................................................... 7

3.1 NOISE DESCRIPTORS ....................................................................................................... 7

4 BACKGROUND NOISE MONITORING .................................................................................... 8

4.1 MEASUREMENT POSITION ............................................................................................. 8

4.2 MEASUREMENT PERIOD ................................................................................................. 8

4.3 MEASUREMENT EQUIPMENT ......................................................................................... 8

4.4 MEASURED BACKGROUND NOISE LEVELS .................................................................... 8

4.5 ATTENDED BACKGROUND NOISE MONITORING – EXTERNAL .................................. 9

4.5.1 Measurement Position ........................................................................................................................ 9

4.5.2 Measurement Period ........................................................................................................................... 9

4.5.3 Measurement Equipment .................................................................................................................. 9

4.5.4 Measured Background Noise Levels ............................................................................................. 9

5 NOISE EMISSION CRITERIA .................................................................................................. 10

5.1 NOISE CRITERIA ............................................................................................................. 10

5.1.1 City of Ryde Council – ‘City of Ryde Development Control Plan 2014’ ........................ 10

5.1.2 NSW EPA Noise Policy for Industry (NPfI) 2017 .................................................................... 10

5.1.3 Sleep Arousal Criteria ....................................................................................................................... 12

5.1.4 NSW Liquor & Gaming .................................................................................................................... 12

5.2 SUMMARY OF NOISE EMISSION CRITERIA ................................................................. 13

6 NOISE EMISSION ASSESSMENT ........................................................................................... 14

6.1 PATRON AND MUSIC NOISE ASSESSMENT ................................................................ 14

6.1.1 Measurement Positions ................................................................................................................... 14

6.1.2 Measurement Period ........................................................................................................................ 14

6.1.3 Measurement Equipment ............................................................................................................... 14

6.1.4 Measured Operational Noise Levels ........................................................................................... 14

6.1.5 Predicted external Noise Levels at nearest sensitive receivers ......................................... 14

6.2 MECHANICAL NOISE EMISSIONS ................................................................................. 17

6.2.1 Measurement Positions ................................................................................................................... 17

6.2.2 Measurement Period ........................................................................................................................ 17

6.2.3 Measurement Equipment ............................................................................................................... 17

6.2.4 Measured Mechanical Noise Levels ............................................................................................ 17

6.2.5 Predicted Noise Levels due to Mechanical Plant Operation at Nearest Sensitive

Receivers ................................................................................................................................................................. 17

6.3 ON-GRADE CARPARK AND DRIVEWAY USAGE .......................................................... 19

6.4 ON-GRADE CAR PARK - SLEEP DISTURBANCE (INTERMITTENT) NOISE

ASSESSMENT ............................................................................................................................. 20

6.4.1 Sleep Disturbance (Intermittent) Noise Assessment Discussion ..................................... 21

7 RECOMMENDATIONS ........................................................................................................... 22

7.1 PATRON ACITIVITY AND BACKGROUND MUSIC ....................................................... 22

7.2 MECHANICAL PLANT .................................................................................................... 22

7.3 ON-GRADE CARPARK AND DRIVEWAY USAGE .......................................................... 22

8 CONCLUSION ......................................................................................................................... 23

APPENDIX 1 – UNATTENDED MONITORING DATA.................................................................. 24



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1 INTRODUCTION

Acoustic Logic (AL) have been engaged to assess potential environmental noise impacts from the use of the

licensed restaurant maintained on the ground floor of the commercial building at 29 Rowe Street, Eastwood.

This document addresses noise impacts associated with the following:

• Noise emissions from patron activity and background music.

• Noise emissions from mechanical plant servicing the site.

• Noise emissions from use of the on-grade carpark and driveway.

AL have utilised the following documents and regulations in the assessment of noise impacts for the

development:

• City of Ryde Council – ‘City of Ryde Development Control Plan 2014’.

• NSW Department of Environment and Heritage, Environmental Protection Authority

document – ‘Noise Policy for Industry’ (NPI) 2017.

• Requirements of NSW Office of Liquor and Gaming.

• NSW Department of Environment and Heritage, Environmental Protection Authority

document – ‘Road Noise Policy 2011’

This assessment has been conducted based on the architectural drawings provided to AL, prepared by JKL

Design, and dated 25/07/2011, in conjunction with the architectural drawings prepared by Ghap Desicon,

dated 13/06/2021.



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2 SITE DESCRIPTION AND PROPOSAL

The proposed development is located on the ground floor of a three-storey commercial building located at

29 Rowe Street, Eastwood.

The proposal intends to formalise the use of the restaurant to the following:

• Restaurant with a mostly indoor, in addition to an 8-person outdoor seating area, totalling

to a capacity of 150 patrons.

• Proposed operating hours are to be from 7:00am to 12:00am, 7 days per week (inclusive of

Public Holidays).

• Background music will be played internally only.

Figure 1 below illustrates the locations of the licensed restaurant site, noise monitoring locations and most

affected receivers.



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Figure 1 – Site Location with Nearest Receivers and Monitoring and Measurement Locations (Sourced from Six Maps)



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3 EXISTING ACOUSTIC ENVIRONMENT

The acoustic environment is categorised by moderate background noise levels associated with an

urban/commercial environment during the day and evening, and quieter during the night-time period.

Unattended noise monitoring has been conducted by this office from Wednesday the 16th of June 2021 to Monday

the 28th of June 2021.

3.1 NOISE DESCRIPTORS

Environmental noise constantly varies. Accordingly, it is not possible to accurately determine prevailing

environmental noise conditions by measuring a single, instantaneous noise level.

To accurately determine the environmental noise a 15minute measurement interval is utilised. Over this period,

noise levels are monitored on a continuous basis and statistical and integrating techniques are used to determine

noise description parameters.

In analysing environmental noise, three-principal measurement parameters are used, namely L10, L90 and Leq. The

L10 and L90 measurement parameters are statistical levels that represent the average maximum and average

minimum noise levels respectively, over the measurement intervals.

The L10 parameter is commonly used to measure noise produced by a particular intrusive noise source since it

represents the average of the loudest noise levels produced by the source.

Conversely, the L90 level (which is commonly referred to as the background noise level) represents the noise level

heard in the quieter periods during a measurement interval. The L90 parameter is used to set the allowable noise

level for new, potentially intrusive noise sources since the disturbance caused by the new source will depend on

how audible it is above the pre-existing noise environment, particularly during quiet periods, as represented by

the L90 level.

The Leq parameter represents the average noise energy during a measurement period. This parameter is derived

by integrating the noise levels measured over the 15-minute period. Leq is important in the assessment of

environmental noise impact as it closely corresponds with human perception of a changing noise environment;

such is the character of environmental noise.

The Lmax parameter represents the loudest instantaneous sound pressure level during a measurement period.



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4 BACKGROUND NOISE MONITORING

Unattended noise monitoring was conducted by this office from Wednesday the 16th of June 2021 to Monday the

28th of June 2021.

4.1 MEASUREMENT POSITION

One unattended noise monitor was installed on the proposed site facing Rowe Street. This is visualised within

figure 1.

4.2 MEASUREMENT PERIOD

Unattended noise monitoring was conducted from Wednesday the 16th of June 2021 to Monday the 28th of June

2021.

4.3 MEASUREMENT EQUIPMENT

Equipment used consisted of an Acoustic Research Laboratories Pty Ltd noise logger. The logger was set to A-

weighted fast response and was programmed to store 15-minute statistical noise levels throughout the monitoring

period. The monitor was calibrated at the start and end of the monitoring period using a Rion NC-73 calibrator.

No significant drift was noted.

4.4 MEASURED BACKGROUND NOISE LEVELS

Weather affected data has been excluded where required by Fact Sheets A and B of NSW EPA Noise Policy for

Industry guidelines. Measured background noise levels are presented below. The levels will be representative for

the surrounding area. Refer to Appendix 1 for noise logging data.

Table 1 – Unattended Noise Monitor - Assessment Background Noise Levels

Date

Measured Assessment Background Noise Level dB(A)LA90

Day

(7am-6pm)

Evening

(6pm-10pm)

Night (10pm-12am

Next Day)

Wednesday 16th June 2021 - 50 -

Thursday 17th June 2021 - 51 44

Friday 18th June 2021 51 - 55

Saturday 19th June 2021 - - -

Sunday 20th June 2021 48 49 44

Monday 21st June 2021 51 50 49

Tuesday 22nd June 2021 51 48 43

Wednesday 23rd June 2021 50 47 41

Thursday 24th June 2021 49 46 40

Friday 25th June 2021 49 50 43

Saturday 26th June 2021 49 45 42

Sunday 27th June 2021 46 42 38

Median 50 49 43



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4.5 ATTENDED BACKGROUND NOISE MONITORING – EXTERNAL

Background noise monitoring has been supplemented with an attended measurement taken on Friday the 25th of

June 2021 between 8:30pm and 9:00pm.

4.5.1 Measurement Position

The attended background noise measurement was conducted on the second storey of the commercial building

located at 29 Rowe Street, Eastwood. This is visualised within figure 1.

4.5.2 Measurement Period

The attended noise measurement was conducted on Friday the 25th of June 2021 from 8:30pm to 9:00pm.

4.5.3 Measurement Equipment

Measurements were conducted using a Norsonic 140 Sound Analyser. The analyser was set to fast response and

calibrated before and after the measurements using a Norsonic Sound Calibrator type 1251. No significant drift

was noted.

4.5.4 Measured Background Noise Levels

The measured background noise levels are presented in the table below.

Table 2 – Attended Background Noise Measurement – 2nd Storey of 29 Rowe Street,

Eastwood

Freq (Hz) 31.5Hz 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz dB(A)L90

dB 51 51 50 49 46 44 38 28 20 49

Attended background noise spectrum for each period of the day has been summarised below.

Table 3 – Summarised Rating Background Noise Levels

Time of Day Rating Background Noise Level dB(A) L90

31.5Hz 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz dB(A)L90

Elizabeth Street

Day (7am-

6pm) 52 52 51 50 47 45 39 29 21 50

Evening

(6pm-10pm) 51 51 50 49 46 44 38 28 20 49

Night (10pm-

12am) 45 45 44 43 40 38 32 22 14 43

Note: This table is adjusted based upon data obtained from both attended and unattended noise monitoring.



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5 NOISE EMISSION CRITERIA

A noise emission assessment has been carried out to ensure noise emitted from the licensed restaurant is in

accordance with the requirements listed in this section.

This assessment will review noise emissions associated with the following:

• Patron noise from internal and external areas of the site.

• Mechanical plant noise.

• On-grade carpark and driveway usage

5.1 NOISE CRITERIA

The noise emission assessment has been assessed in accordance with the following documents:


• NSW Environmental Protection Authority (EPA) – ‘Noise Policy for Industry (NPI) 2017’.


5.1.1 City of Ryde Council – ‘City of Ryde Development Control Plan 2014’

The City of Ryde Development Control Plan 2014 does not provide any acoustic controls or objectives for noise

emissions, therefore; this assessment will adopt the NSW EPA Noise Policy for Industry (2017) criteria.

5.1.2 NSW EPA Noise Policy for Industry (NPfI) 2017

The NSW EPA Noise Policy for Industry (NPfI) 2017, has two criteria which need to be satisfied: namely the

Intrusiveness noise level criteria and the Project amenity noise level criteria. The project noise trigger level is then

established based on the lower of the intrusiveness and project amenity levels.

Noise levels are to be assessed at the property boundary or nearby dwelling, or at the balcony or façade of an

apartment.

5.1.2.1 Intrusiveness Noise Level Criteria

The guideline is intended to limit the audibility of noise emissions at residential receivers and requires that noise

emissions measured using the Leq descriptor do not exceed the background noise level by more than 5dB(A).

Where applicable, the intrusive noise level should be penalised (increased) to account for any annoying

characteristics such as tonality.

Background noise levels adopted are presented in Section 4. Noise emissions from the site should comply with

the noise levels presented below when measured at nearby property boundary.



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Table 4 – Intrusiveness Noise Level Criteria

Location Period/Time Intrusiveness Noise Level Criteria

dB(A)LAeq(15min)

Nearby residences – urban

receivers

Day

(7am-6pm) 55

Evening

(6pm-10pm) 54

Night

(10pm-12am) 48

5.1.2.2 Project Amenity Noise Level Criteria

The guideline is intended to limit the absolute noise level from all noise sources to a level that is consistent with

the general environment.

The NSW EPA Noise Policy for Industry sets out acceptable noise levels for various localities. Table 2.2 on page 11

of the policy indicates 3 categories to distinguish different residential areas. They are rural, suburban, urban. This

site is categorised by urban receivers.

For the purposes of this condition:

• Day is defined as the period from 7am to 6pm Monday to Saturday and 8am to 6pm Sundays and

Public Holidays;

• Evening is defined as the period from 6pm to 10pm.

• Night is defined as the period from 10pm to 7am Monday to Saturday and 10pm to 8am Sunday

and public holidays.

The project amenity noise level is calculated by taking the recommended amenity noise level (as presented in table

2.2 of the policy), subtracting 5dB(A) and then adding 3dB(A) to convert from LAeq, period to a LAeq, 15 minute descriptor.

The project amenity noise level criteria are presented in the table below.

Table 5 – Project Amenity Noise Level Criteria

Location Period/Time Project Amenity Noise Level Criteria

dB(A)LAeq(15min)

Nearby residences – urban

receivers

Day

(7am-6pm) 58

Evening

(6pm-10pm) 48

Night

(10pm-12am) 43

Nearby commercial receivers When in use 63



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5.1.3 Sleep Arousal Criteria

Section 2.5 of NPfI 2017 recommended the following noise limit to mitigate sleeping disturbance:

“Where the subject development/ premises night -time noise levels at a residential location exceed:

• LAeq, 15min 40 dB(A) or the prevailing RBL plus 5 dB, whichever is the greater, and/or

• LAFmax 52 dB(A) or the prevailing RBL plus 15 dB, whichever is the greater,

A detailed maximum noise level even assessment should be undertaken.”

Table 6 - Sleep Arousal Emergence Criteria (Night)

Location Rating Background Noise Level

(Night) - dB(A)L90 Emergence Level

All Potentially Affected Residential

Properties 43

48 dB(A)Leq, 15min;

58 dB(A)Lmax, F

5.1.4 NSW Liquor & Gaming

NSW Liquor & Gaming requirements are as follows:

• The L10 noise level emitted from the premises shall not exceed 5dB above the background L90

sound level in any Octave Band Centre Frequency (31.5kHz to 8kHz inclusive) between the hours of

7.00am to 12.00 midnight when assessed at the boundary of the nearest affected residential premises.

• L10 noise level emitted from the premises shall not exceed the background L90 sound level in any

Octave Band Centre Frequency (31.5kHz to 8kHz inclusive) after midnight when assessed at the

boundary of the nearest affected residential premises.

After midnight, noise emissions from the Place of Public Entertainment are to be inaudible within any habitable

rooms in nearby residential properties.

The following assessment criteria have been determined based on the noise levels measured. These apply when

measured outside the open window of a residential facade.

Table 7 – NSW Liquor & Gaming Noise Emission Objectives

Time of Day Single Octave Band Frequencies Criteria, dB

dB(A)

L10 31.5Hz 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz

7am-6pm

(BG+5dB(A)) 57 57 56 55 52 50 44 34 26 55

6pm-10pm

(BG + 5dB(A)) 56 56 55 54 51 49 43 33 25 54

10pm-12am

(BG+5dB(A)) 50 50 49 48 45 43 37 27 19 48



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5.2 SUMMARY OF NOISE EMISSION CRITERIA

Tables 8 and 9 provide a summary of the relevant noise emission criteria for the licensed restaurant.

Table 8 – Summary of Billiards Room and Café Mechanical Plant Noise Emission Criteria

Location Source Receiver Time Period

Project

Criteria dB(A)

Leq(15min)

Project

Criteria dB(A)

Lmax F

29 Rowe Street,

Eastwood

Mechanical

plant noise and

on-grade

carpark

Residential

receivers

Day

(7am – 6pm) 55

N/A Evening

(6pm-10pm) 48

Night

(10pm-12am) 43 58

Commercial

receivers When in use 63 N/A

Table 9 – Summary of Billiards Room and Café Patron/Music Noise Emission Criteria to

External Areas of Residential Receivers

Time of Day Single Octave Band Frequencies Criteria, dB

dB(A)

L10 31.5Hz 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz

7am-6pm

(BG+5dB(A)) 57 57 56 55 52 50 44 34 26 55

6pm-10pm

(BG + 5dB(A)) 56 56 55 54 51 49 43 33 25 54

10pm-12am

(BG+5dB(A)) 50 50 49 48 45 43 37 27 19 48



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6 NOISE EMISSION ASSESSMENT

This section of the report examines the potential noise impacts from the licensed restaurant.

6.1 PATRON AND MUSIC NOISE ASSESSMENT

Attended noise measurements were conducted on Friday the 25th of June 2021 to assess operational noise form

patron activity and background music.

6.1.1 Measurement Positions

Two respective noise measurements were conducted facing the front and rear exit doors of the restaurant, 1m

away from the door. This is visualised within figure 1.


Attended noise measurements were conducted on Friday the 25th of June 2021 from 8:30pm to 9:00pm.




was noted.

6.1.4 Measured Operational Noise Levels

The measured operational noise levels are presented in the table below.

Table 9 – Measured Noise Levels due to Patron Activity

Location Frequency 31.5Hz 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz dB(A)

L10

Facing

Entry

Door in

carpark,

1m from

Door Measured

Noise

Levels (L10)

67 62 62 62 66 61 56 51 45 66

Facing

Back Door

on Rowe

Lane, 1m

from Door

60 58 57 57 60 59 54 47 41 63

6.1.5 Predicted external Noise Levels at nearest sensitive receivers

It was noted at the time of the measurements that the indoor seating area of the restaurant was operating with

approximately 50% of total patron capacity. To account for this, the Sound Power Levels measured have been

doubled to simulate twice the occupancy as to what was measured. The following table presents the predicted full

capacity noise at the measurement locations.



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Table 10 – Predicted Maximum Capacity Noise Levels due to Patron Activity

Location Frequency 31.5Hz 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz dB(A)

L10

Facing

Entry

Door in

carpark,

1m from

Door

Predicted

full

capacity

Noise

Levels (L10)

68 65 65 65 69 64 59 54 48 69

Facing

Back Door

on Rowe

Lane, 1m

from Door

63 61 60 60 63 62 57 50 44 66

These predicted capacity noise levels were distance corrected to find the predicted external noise experienced at

the closest sensitive receivers. As the proposed outdoor seating area was not in operation at the time of the

measurement, the full capacity use of this area has been accounted for through modelling, assuming that 1 in

every 2 people are talking at one time (Typical of normal conversation). The predicted external noise levels at

nearest receivers are presented in the tables below.

Table 11 – Predicted Noise Levels at Residential Receivers North of the Site from Patron

Activity

Frequency 31.5Hz 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz dB(A)

L10

Predicted Noise

Levels (L10) 31 31 29 30 33 32 27 20 14 35

Noise Emission

Criteria

7am-6pm

(BG+5dB(A))

57 57 56 55 52 50 44 34 26 55

Noise Emission

Criteria

6pm-10pm

(BG+5dB(A))

56 56 55 54 51 49 43 33 25 54

Noise Emission

Criteria

10pm-12am

(BG+5dB(A))

50 50 49 48 45 43 37 27 19 48

Compliance Yes



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Table 12 – Predicted Noise Levels at Mixed-Use Receiver South-East of the Site from Patron

Activity (With Outdoor Seating Area)


L10

Predicted Noise

Levels (L10) 40 40 46 46 51 49 43 33 24 53

Noise Emission

Criteria

7am-6pm

(BG+5dB(A))

57 57 56 55 52 50 44 34 26 55

Noise Emission

Criteria

6pm-10pm

(BG+5dB(A))

56 56 55 54 51 49 43 33 25 54

Noise Emission

Criteria

10pm-12am

(BG+5dB(A))

50 50 49 48 45 43 37 27 19 48

Compliance Complies for Day and Evening; does not comply for Night*

*: See section 7 for acoustic recommendations.

Table 13 – Predicted Noise Levels at Mixed-Use Receiver South-East of the Site from Patron

Activity (Without Outdoor Seating Area)


L10

Predicted Noise

Levels (L10) 36 36 36 36 40 36 30 25 19 40

Noise Emission

Criteria

7am-6pm

(BG+5dB(A))

57 57 56 55 52 50 44 34 26 55

Noise Emission

Criteria

6pm-10pm

(BG+5dB(A))

56 56 55 54 51 49 43 33 25 54

Noise Emission

Criteria

10pm-12am

(BG+5dB(A))

50 50 49 48 45 43 37 27 19 48

Compliance Yes



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6.2 MECHANICAL NOISE EMISSIONS

Attended noise measurements were conducted on Friday the 25th of June 2021 to assess operational noise from

the kitchen exhaust fan servicing the restaurant. It was noted to this office that whilst there were two identical fans

maintained on the roof, one was used to service the requirements of the project site restaurant, whilst the other

was servicing the billiards room and café maintained on level one of the building.

6.2.1 Measurement Positions

A noise measurement was conducted between the existing exhaust fans, approximately 1m away from each unit.

This is visualised within figure 1.


The attended noise measurement was conducted on Friday the 25th of June 2021 from 8:30pm to 9:00pm.




was noted.

6.2.4 Measured Mechanical Noise Levels

The measured mechanical operational noise level is presented in the table below.

Table 14 – Measured Noise Levels due to Mechanical Operation

Location Measured Noise Level - dB(A)L90

In between identical exhaust fans, maintained on the

roof of 29 Rowe Street Eastwood

1m away from each unit

70

6.2.5 Predicted Noise Levels due to Mechanical Plant Operation at Nearest Sensitive Receivers

The measured noise level of the operation of the exhaust fans was then distance corrected to predict the noise

experienced at the nearest residential receivers due to the fan’s operation. If it is shown that the predicted noise

with both exhaust fans operational (One of which services the restaurant, whilst the other services the billiards

room above) complies with the requirements of the NPfI, it can be said that inherently the operation of the sole

kitchen exhaust fan servicing the restaurant also complies. The following table presents the predicted external

noise levels at nearest sensitive receivers due to mechanical plant operation.



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Table 15 – Predicted External Noise Levels at nearest Sensitive Receivers due to Mechanical

Operation

Receiver Predicted External

Noise Level - dB(A)L90

Noise Emission Criteria

– dB(A)L90

Compliance

Residential receivers

(North of site) 43 Day: 7am-6pm – 55

Evening: 6pm-10pm – 48

Night: 10pm-12am - 43

Yes Mixed-use receiver

(South-east of site) 40



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6.3 ON-GRADE CARPARK AND DRIVEWAY USAGE

In the absence of any traffic noise data provided to this office in relation to the operation and use of the on-grade

carpark and driveway, the following assumptions have been made for this assessment:

• Through site investigation, it was found that the carpark has a capacity of 12 spaces.

• In a worst 15-minute period during the daytime, it is assumed that the carpark will completely fill

and empty (24 car movements within a 15-minute period).

• In a worst 15-minute period during the evening, it is assumed that a third of the total capacity of

the carpark will fill and empty (8 car movements within a 15-minute period).

• It has been assumed by this office that no cars will be entering the carpark during the night, due

to the use of the carpark servicing the restaurant and café/billiards room above, which are both to cease

operation at midnight, in conjunction with the commercial tenancy on level 2 of the building, which

operates during the day.

• Hence, in a worst 15-minute period during the night, it is assumed that half of the total capacity

of the carpark will empty (6 car movements within a 15-minute period).

The following tables present the predicted external noise levels due to the use of the on-grade carpark to the

mixed-use receiver to the south-east of the restaurant site. Due to its proximity to the carpark, if noise emissions

are shown to comply at this receiver, they will inherently comply everywhere else, due to the variation in criteria

between residential and commercial receivers, in conjunction with further distance attenuation and barrier effects

for other receivers.

Table 16 – Predicted Noise Levels at Mixed-Use Receiver South-East of the Site from On-

Grade Carpark Usage

Receiver

Predicted Noise

Level

dB(A)Leq(15min)

Time of day

Noise Emission

Objective

dB(A)Leq(15min)

Compliance

Mixed-use receiver

to the south-east of

the site

53 Day

7am-6pm 55

Yes

48 Evening

6pm-10pm 48

42 Night

10pm-12am 43 Yes



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6.4 ON-GRADE CAR PARK - SLEEP DISTURBANCE (INTERMITTENT) NOISE ASSESSMENT

Short duration noise events (door close/car start) are assessed with reference to EPA Sleep Disturbance Guidelines

if used between 10pm - 12am.

The following sleep disturbance assessment is conducted with reference to the guidelines set out in section 5.1.3.

The assessment is based on the following assumptions:

• Car door Slam/Car Start (night time peak noise event): 91dB(A)LMax sound power.

• Noise level has been predicted from a nearest car space to the mixed-use receiver providing a worst-case

scenario.

• When predicting noise levels at the windows of residences maintained within the mixed-use receiver, a side

set back of 1m has been taken into account to the western façade.

As noted in section 5.1.3, sleep disturbance assessment is a two-step process:

Firstly, the peak noise events are assessed with reference to a “Background+15dB(A)” assessment. If this test is

passed, the noise emissions should be considered satisfactory.

In the event that the first test cannot be complied with, an assessment is then made of the actual noise level inside

the residence (assuming window open) and comparison made to the EPA guidance regarding peak noise events

and probability of awakening.

The following table presents the predicted maximum noise levels experienced at the mixed-use receiver.

Table 17 – Predicted Maximum Noise Levels at Mixed-Use Receiver South-East of the Site

from On-Grade Carpark Usage

Receiver Predicted Noise

Level dB(A)LAFMax

Time of day

Noise Emission

Objective dB(A)

LAFMax

Compliance

Mixed-use receiver

to the south-east of

the site

65 Night

10pm-12am 58 Yes*

*: See discussion on following page.



21

6.4.1 Sleep Disturbance (Intermittent) Noise Assessment Discussion

With respect to the potential sleep disturbance as a result of the short duration peak noise event caused by a door

close/car start within the on-grade carpark, the following is noted:

• As identified in section 5.1.3 of this report, if there is predicted to be an exceedance of the Sleep Arousal

Criteria, the EPA guidelines recommended a more detailed acoustic assessment.

• In this case, section 5.4 of the EPA document Road Noise Policy (RNP) presents a detailed method for the

assessment of the probability of sleep awakening.

• In the event that a bedroom window to the residences is left open, one would expect that the noise level

inside a bedroom would be 10dB(A) less than the noise level outside.

• As the momentary noise level from a door close/car start within the carpark is predicted to be 65dB(A)Lmax

outside the window, the corresponding noise level inside the room of the residence would 55dB(A)Lmax.

• In this regard, we then note that the EPA Road Noise Policy document states the following:

“For the research on sleep disturbance to date it can be concluded that:

o Maximum internal noise levels below 50-55dB(A) are unlikely to awaken people from sleep.

o One to two noise events per night with maximum internal noise levels of 65-70dB(A) are not likely

to affect health and wellbeing significantly.”

• On this basis, the proposed noise impact is considered reasonable.



22

7 RECOMMENDATIONS

The predicted levels presented within section 6 are a result of the following building and management controls.

7.1 PATRON ACITIVITY AND BACKGROUND MUSIC

• Total of 150 patrons at any one time within the restaurant with no more than 8 patrons maintained

in the outside eating area at one time.

• The proposed outside eating area is not to be used after 10pm and is only allowed to be

implemented to the extent visualised within drawing DA-01/A by Ghap Desicon, dated 13/06/2021.

• Premises to cease operation by midnight.

• Only background music is permitted inside the restaurant and should not exceed 70dB(A) sound

pressure level.

• All entry doors are to remain closed at all times unless patrons are entering or egressing.

• Management controls should be utilised to manage patron departure particularly at night and at

closing times to ensure that patrons leaving the premises in a prompt and orderly manner.

• Prominent notices shall be placed to remind patrons that a minimum amount of noise is to be

generated when leaving the premises.

• All garbage shall be retained within the premises and removed after 7am on the following day.

7.2 MECHANICAL PLANT

• The use of the kitchen exhaust fan has been shown to comply with noise emission criteria outlined

within the EPA’s NPfI, and hence does not require further acoustic treatment.

7.3 ON-GRADE CARPARK AND DRIVEWAY USAGE

• The use of the on-grade carpark has been shown to comply with noise emission criteria outlined

within the EPA’s NPfI, and within Section 6.4.1 the effects on Sleep Disturbance have been discussed.



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8 CONCLUSION

This report presents an acoustic assessment of noise impacts associated with the operations of the licensed

restaurant located at the ground floor of commercial building 29 Rowe Street, Eastwood.

Provided acoustic treatments in Section 7 of this report are implemented, noise emissions from the proposed site

will satisfy the requirements of:


• NSW Department of Environment and Heritage, Environmental Protection Authority document –

‘Noise Policy for Industry’ (NPI) 2017.


• NSW Department of Environment and Heritage, Environmental Protection Authority document –

‘Road Noise Policy 2011’

We trust this information is satisfactory. Please contact us should you have any further queries.

Yours faithfully,

Acoustic Logic Pty Ltd

Lachlan Abood



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APPENDIX 1 – UNATTENDED MONITORING DATA



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Documents

29 Rowe St, Eastwood NSW Ground Floor - DA Acoustic Assessment