WIXLIB

DocumentEmailTo: Karen Huang; Te-liang ChongCC: Joe Panfalone (ECM); Karen Alcock; John Corrigan (ECM)Subject: Re: 3228 RE: 19005 Johnston St Coordination1.3Prepared byMadeleine Nicol,MA ArchitectsIssueThu8/04/20212:30 PMReport LimitationsThe following limitations are applicable with respect to the acoustic advice presented in this report: Cogent Acoustics has prepared this document for the sole use of the Client and for the specificpurpose expressly stated in the document. No other party should rely on this document withoutthe prior written consent of Cogent Acoustics. Cogent Acoustics undertakes no duty, noraccepts any responsibility, to any third party who may rely upon or use this document. The information contained in this document provides advice in relation to acoustics andvibration only. No claims are made and no liability is accepted in respect of design andconstruction issues falling outside of the specialist field of acoustics and vibration engineeringincluding and not limited to structural integrity, fire rating, architectural buildability and fitnessfor-purpose, waterproofing and the like. Supplementary professional advice should be soughtin respect of these issues. Reports marked ‘Not for Construction’ or ‘Draft’ may be subject to change and are not releasedas final reports. Cogent Acoustics accepts no liability pending release of the final version of thereport. In preparing this document Cogent Acoustics may have relied upon information provided by theClient and other third parties, some of which may not have been verified. Cogent Acousticsaccepts no responsibility or liability for any errors or omissions which may be incorporated intothis document as a result. The recommendations, data and methodology presented in this document are based on thelisted reference documentation. The recommendations apply specifically to the project underconsideration and must not be utilised for any other purpose. Any modifications or changes tothe project from that described in the listed reference documentation may invalidate the adviceprovided in this document, necessitating a revision. Subject to the above conditions, this document may be transmitted, reproduced ordisseminated only in its entirety.2P:\01 projects\21032 398-400 johnston street, abbotsford\05 reports\21032-aer-r2 398-400 johnston street, abbotsford 2021 08 23.docx

2Project Characteristics2.1Site LocationThe project site is located at 398-400 Johnston Street, Abbotsford, as shown in Figure 1. Thetopography in the area of the site is flat.NProject SiteAerial Image of Site (Aerial Photo Source: VicPlan)2.2Proposed ProjectThe project comprises a proposed 9-storey mixed-use development incorporating residentialapartments, common resident facilities, a commercial tenancy and office, and two levels of basementcar parking.Floor plans of the proposed development are presented in Appendix E.3P:\01 projects\21032 398-400 johnston street, abbotsford\05 reports\21032-aer-r2 398-400 johnston street, abbotsford 2021 08 23.docx

3Legislation and Guidelines3.1Summary of Relevant DocumentsTable 4 presents a summary of the relevant legislation and guidelines applicable to the proposeddevelopment. The information contained in these documents forms the basis of the design criteriaand advice presented in this report.Table 4Summary of Relevant Statutory Requirements and GuidelinesDocumentNational Construction Code 2019Volume One Amendment 1 –Building Code of Australia – Class 2to 9 Buildings (BCA) (ABCB, 2020).State Environment Protection Policy(Control of Noise from Industry,Commerce and Trade) No. N-1 (SEPPN-1) (State of Victoria, 2001)StatusLegislationEnvironment Protection (ResidentialNoise) Regulations 2018 (State ofVictoria, 2018)LegislationVictoria Planning Provisions Clause58.04-3 (State of Victoria, 2020)LegislationEPA Victoria, Noise ControlGuidelines, Publication 1254 (EPAVictoria, 2008)Guideline3.2LegislationRelevance to this ProjectPrescribes the minimum mandatoryperformance requirements for soundinsulation between spaces within thebuilding.Prescribes the methods for determiningthe statutory environmental noise limitsthat apply to noise emissions fromindustrial, commercial, and tradepremises within metropolitan Melbourne,and the methods to be used forassessment.Mechanical plant noise emissions due tocommon and commercial parts of thedevelopment will be subject to therequirements of SEPP N-1.Prescribes requirements for noiseemissions from residential premises. Therequirements will apply to noise fromdomestic air-conditioning equipmentserving individual dwellings.Prescribes maximum interior noise levelsfor new apartments five or more storeyswithin prescribed distances of high trafficroads, railways and industrial areas.Provides guidance on interpretation andapplication of the EnvironmentProtection (Residential Noise)Regulations.State Environment Protection Policy No. N-1 (SEPP N-1)State Environment Protection Policy (Control of Noise from Commerce, Industry and Trade) No. N-1(SEPP N-1) (State of Victoria, 2001) prescribes the procedures used to determine limits for, and assess,environmental noise emissions from sources such as mechanical equipment and activities associatedwith commercial, industrial or trade operations. Compliance with SEPP N-1 is a statutory requirementwithin the Melbourne Metropolitan Region.4P:\01 projects\21032 398-400 johnston street, abbotsford\05 reports\21032-aer-r2 398-400 johnston street, abbotsford 2021 08 23.docx

The limits prescribed by SEPP N-1 apply at or within Noise Sensitive Areas, such as residentialdwellings, as defined in Appendix A. The limits are dependent on a number of factors including: The time of day at which the noise emissions occur; The planning zone types in the area of the Noise Sensitive Area; and The background noise levels at the Noise Sensitive Area.In accordance with SEPP N-1, noise emissions from the source under consideration are measured soas to obtain an LAeq Sound Pressure Level that is representative of the audible noise at the NoiseSensitive Area over a continuous 30-minute period. Adjustments to the measured level are appliedwhere necessary to account for characteristics such as duration, intermittency, reflections,impulsiveness, tonality, and measurement location. The adjusted noise level is termed the EffectiveNoise Level, and it is the Effective Noise Level that is assessed in relation to the noise limits.3.3Environment Protection (Residential Noise) Regulations 2018Noise emissions from residential premises must comply with the Environment Protection (ResidentialNoise) Regulations 2018 (Residential Noise Regulations) (State of Victoria, 2018).The Residential Noise Regulations prescribe the times (termed “Prohibited Times”) during whichcertain types of noise emission is deemed to be unreasonable noise for the purposes of Section 48A(5)of the Environment Protection Act 1970 (State of Victoria, 1970).The EPA Noise Control Guidelines (EPA Victoria, 2008) provide guidance to assist with interpretationof the Residential Noise Regulations for noise from fixed domestic plant such as air conditioners,swimming pool and spa pumps, heating systems, internal vacuum systems, and the like.3.1EPA Publication 1254 – Noise Control GuidelinesEPA publication 1254 ‘Noise Control Guidelines’ provides guidance relating to assessment andmanagement of noise from a range of specific sources. It addresses a number of sources that are notexplicitly covered by other policies and guidelines, and provides complementary guidance for sometypes of noise that are also addressed by other noise legislation, policies and guidelines.The guidelines are primarily intended to assist in the resolution of complaints or to avert a possiblenoise nuisance. Many of the guidelines do not require an actual measurement of the noise, but ratherprescribe parameters (such as operating hours or minimum separation distances) outside of which anactivity would be likely to be unreasonable noise.5P:\01 projects\21032 398-400 johnston street, abbotsford\05 reports\21032-aer-r2 398-400 johnston street, abbotsford 2021 08 23.docx

4Noise Sensitive AreasTable 5 and Figure 2 identify the nearest and potentially most-affected Noise Sensitive Areas (NSAs)in the vicinity of the project site, as defined by the relevant environmental noise legislation.Assessment of environmental noise emissions due to the project will be undertaken at these locations.It is expected that compliance with the environmental noise criteria at these locations will also resultin compliance at all other nearby NSAs.Table 5NSARef.1Details of Potentially Most-Affected Noise Sensitive Areas (NSAs)398-400 Johnston Street, AbbotsfordNo.Storeys9285 to 103 Turner Street, Abbotsford1-23329 Johnston Street, Abbotsford4382 & 384 Johnston Street,AbbotsfordAddress7-9(TBC)1-2NSA TypeNotesApartmentsProject SiteMultiple singledwellingsPlanning Permitissued(PLN16/1188).Council has not yetendorsed plans /documents.Two singledwellingsSingle DwellingsApartmentsSingle DwellingsNSA 2Project Site(NSA 1)NSA 4NSA 3Locations of Potentially Most-Affected Noise Sensitive Areas (NSAs)(Aerial Photo Source: VicPlan)6P:\01 projects\21032 398-400 johnston street, abbotsford\05 reports\21032-aer-r2 398-400 johnston street, abbotsford 2021 08 23.docx

5Existing Acoustic Conditions5.1Exterior SoundscapeDuring our site visits on 25 February and 3 March 2021, the soundscape at the southern boundary ofthe site was dominated by road traffic noise from Johnston Street. Noise from the panel beatersopposite the project site could sometimes be heard during lulls in traffic movement, but was not adominant feature of the soundscape.At the northern boundary of the site, the soundscape was dominated by trucks idling at the loadingdocks of nearby businesses as well as the occasional slow-moving vehicle travelling along Little TurnerStreet.5.2Background Noise LevelsEnvironmental noise logging was performed at the site to establish the background noise levels. Themeasurements were performed at a location along the northern boundary of the project site between25 February and 3 March 2021. Details of the measurement location and measurement methodologyare presented in Appendix B.The background noise levels at the selected noise logging location are considered to be representativeof the background noise levels at the potentially most-affected receptors.Table 6 presents a summary of the measured background noise levels, as determined in accordancewith the procedures given by SEPP N-1. Graphs showing the variation of background noise level overthe full measurement period are presented in Appendix C.Table 6Background Noise Levels – SEPP N-1LA90 Background NoiseLevel, dB(A)PeriodApplicable TimesDay 7 am to 6 pm Monday to Friday7 am to 1 pm Saturdays40Evening 6 pm to 10 pm Monday to Friday1 pm to 10 pm Saturdays7 am to 10 pm Sundays and Public Holidays39Night 10 pm to 7 am All Days347P:\01 projects\21032 398-400 johnston street, abbotsford\05 reports\21032-aer-r2 398-400 johnston street, abbotsford 2021 08 23.docx

5.35.3.1Environmental Noise LevelsNoise LoggingNoise logging was performed at the site to establish the environmental noise levels. Themeasurements were performed at the southern (Location 1) and northern (Location 2) boundaries ofthe project site, between 25 February and 3 March 2021. Details of the measurement location andmeasurement methodology are presented in Appendix B.Table 7 presents a summary of the measured Sound Pressure Levels. Graphs showing the variation ofthe Sound Pressure Levels over the full measurement period are presented in Appendix C.Table 7Summary of Measured Environmental Noise LevelsMeasured Sound Pressure Level, dB(A)Location 1Location 2Day PeriodNight PeriodDay PeriodNight PeriodLAeq,16hrLAeq,8hrLAeq,16hrLAeq,8hr(6 am to 10 pm) (10 pm to 6 am) (6 am to 10 pm) (10 pm to 6 am)DateThursday, 25February 2021Friday, 26 February2021Saturday, 27February 2021Sunday, 28February 2021Monday, 1 March2021Tuesday, 2 March2021Wednesday, 3March 2021Adopted DesignSound 9543670**-65**-69646251* Partial measurement period: 10:30 am to 10 pm only.** Partial measurement period: 6 am to 12 pm only.5.3.2Attended MeasurementsAttended noise measurements were performed along the southern boundary of the developmentbetween 10:33 am and 10:44 am on 25 February 2021 to establish octave band Sound Pressure Levels.Details of the measurement location and measurement methodology are presented in Appendix B.Table 8 presents the measured Octave Band Sound Pressure Levels.8P:\01 projects\21032 398-400 johnston street, abbotsford\05 reports\21032-aer-r2 398-400 johnston street, abbotsford 2021 08 23.docx

Table 8MeasurementLocationSouthern Boundary –Adjacent to JohnstonStreetMeasured Octave Band Sound Pressure LevelOverall,LAeqdB(A)67Unweighted Octave Band Sound Pressure Level, Leq (dB)63 Hz125 Hz250 Hz500 Hz1 kHz2 kHz4 kHz706764636359549P:\01 projects\21032 398-400 johnston street, abbotsford\05 reports\21032-aer-r2 398-400 johnston street, abbotsford 2021 08 23.docx

6External Noise Intrusion6.1Design CriteriaVictoria Planning Provisions (VPP) Clause 58.04-3 (State of Victoria, 2020) prescribes noise impactsobjectives for apartment developments near major roads, railways, and industry.Clause 58.04-3 specifies that apartment developments within a Noise Influence Area should bedesigned and constructed to comply with the internal noise levels specified in Table 9.Whilst the proposed apartment development is not within a Noise Influence Area, designing thedevelopment to achieve the VPP internal noise levels is considered appropriate for the purpose ofprotecting future occupants from external noise. Table 9 presents the adopted internal noise leveldesign criteria in accordance with VPP Clause 58.04-3.Table 9Victoria Planning Provisions Clause 58.04-3 Design Internal Noise LevelsType of Occupancy / ActivityLiving areasSleeping areas6.2Applicable Times6 am to 10 pm10 pm to 6 amDesign Internal Noise LevelsLAeq,16hr 40 dB(A)LAeq,8hr 35 dB(A)Review of Documented Building Facade DesignCalculations of internal noise levels for the documented design (i.e. without noise mitigation) havebeen conducted based on the building being constructed as detailed in Table 10. Room dimensionsand areas of each facade material have been taken to be as per the reference drawings.Table 10 Documented Design DetailsFacade ElementExternal WallsDocumented Design Details External walls proposed to be of precast concrete panel construction. Noise ingress calculations for the documented design (i.e. without noisemitigation) have been based on the following:-Minimum 150 mm thick precast concrete panel;Minimum 10 mm standard plasterboard fixed to concrete panelsvia minimum 28 mm steel furring channels;Minimum 25 mm thick, 11 kg/m3 glasswool or mineral woolinsulation installed in the wall cavity.This construction is calculated to achieve a sound insulation ratingof Rw Ctr 52.10P:\01 projects\21032 398-400 johnston street, abbotsford\05 reports\21032-aer-r2 398-400 johnston street, abbotsford 2021 08 23.docx

Facade ElementExternal GlazingDocumented Design Details Noise ingress calculations for the documented design (i.e. without noisemitigation) have been based on the external glazing being rated to aminimum sound insulation rating of Rw Ctr 28 such as:-Ceiling / Roof6 mm thick single glazing; orDouble glazing units comprising 6 mm glass 12 mm air gap 6 mm glass. Framing has been selected to match the m

P:\01 projects\21032 398-400 johnston street, abbotsford\05 reports\21032-aer-r2 398-400 johnston street, abbotsford 2021 08 23.docx 398-400 Johnston Street, Abbotsford Town Planning Acoustic Report Prepared for: Prepared by: DCF Property Group 10 Morrison Place EAST MELBOURNE VIC 3002 Cogent Acoustics Pty Ltd ABN: 13 610 344 986