Armadale Road to North Lake Road Bridge Noise Assessment Report Area 8

Armadale Road to North Lake Road - Noise Assessment Report

Armadale Road to North Lake Road Bridge

Noise Assessment Report

Area 8

8 August 2018

Document Number 08-4000-090-NS-RP-0001-B

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REVISION RECORDING

Revision Date By Reviewed Description of Revision Approved A 29/06/2018 Melanie Flux James Forrest Noise Assessment Report Liam Donnelly B 08//08/2018 Melanie Flux James Forrest Noise Assessment Report Ian Anderson

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TABLE OF CONTENTS

1 Introduction 4 1.1 General 4 1.2 Design Area Descriptions 4 1.3 Report Purpose 5 1.4 Scope of Work 5 1.5 Approach 6 1.6 Limitations 6

2 Noise Criteria 7 2.1 Scope of Work and Technical Criteria 7 2.1.1 General 7 2.1.2 Noise Level Objectives 7

3 Noise Monitoring 9 3.1 Noise Monitoring Locations 9 3.1 Unattended Noise Monitoring 13 3.2 Monitoring Results 13 Site A – 8 Tylee Cove, Atwell 16 Site B - 23 Mahogany Loop, Atwell 16

4 Noise Modelling 17 4.1 Modelling Inputs and Assumptions 17 4.2 Traffic Data 18 4.3 Noise Model Verification 20 4.4 Predicted Noise Levels 23 4.5 Assessment of Impacts and Recommendations 25

APPENDIX A NOISE TERMINOLOGY 36

APPENDIX B NOISE MONITORING SITE SUMMARIES 39

APPENDIX C MONITORING RESULTS 40

APPENDIX D NOISE FACADE MAPS 41

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1 INTRODUCTION

1.1 General The Armadale Road to North Lake Road Bridge (Armadale Road Extension) Project will help address significant congestion in the Cockburn Central Area resulting from the growth of Cockburn Gateway Shopping Centre, surrounding commercial, retail and residential development and the area’s proximity to Cockburn Central Station and Kwinana Freeway. The key benefits of the project are:

 Provide a direct link between Armadale Road and North Lake Road, bypassing congestion at Cockburn Central Station and the Cockburn Gateway shopping centre  Improved access to Kwinana Freeway to and from the north  Easier access to Cockburn Central Station  Support residential and commercial expansion in Cockburn and Armadale  Complement other significant road improvements in the Southern Metropolitan Corridor including the duplication of Armadale Road, Kwinana Freeway Northbound Widening and the Murdoch Drive Connection to Kwinana Freeway and Roe Highway The project development was undertaken by the Metropolitan Road Improvement Alliance (MRIA) formed between Main Roads Western Australia (Main Roads), CPB Contractors, Georgiou Group, WA Limestone, GHD, AECOM and BG&E.

1.2 Design Area Descriptions The project area is shown in Figure 1-1.

Figure 1-1 Armadale Road to North Lake Road Structures Location Plan

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This noise report covers the following two project options only: Option 2 – Grade Separated Viaduct The works under Option 2 will include the design and construction of the following:

 Bridge 1733: North Lake Road over Kwinana Freeway and Mandurah Rail Line  Underpass 9454: PSP loop crossing  Bridge 1825: North Lake Road over Prinsep Road Extension  An elevated viaduct carrying the main alignment of Armadale Road over a grade separated roundabout at Tapper Drive  A dive structure and trench carrying the main alignment of Armadale Road under a grade separated roundabout at Solomon Road The project also includes works on the Kwinana freeway:  North facing off ramp at the North Lake Road Bridge and a two lane collector distributor (CD) road on the south bound side of the Kwinana Freeway from Berrigan Drive to Armadale Road  North facing on ramp to connect to a two lane collector distributor (CD) road (constructed as part of the Kwinana Freeway Widening project) on the north bound side of the Kwinana Freeway from Armadale Road to Berrigan Drive

1.3 Report Purpose This report documents the traffic noise impact assessment completed for the project preliminary design only. This report presents results from noise modelling and provides recommendation for required mitigation, including determining if existing noise walls along Armadale Road and the Kwinana Freeway keep traffic noise within acceptable levels to nearby receptors. An additional noise study will be required for detailed design purposes.

1.4 Scope of Work The road traffic noise assessment scope of work is as follows:

 Unattended noise monitoring at selected sensitive receptor sites to determine baseline noise levels.  Development of a road traffic noise model based on existing and future predicted traffic flows to predict noise levels for a number of scenarios.  Comparison of predicted noise levels against relevant road traffic noise criteria.  Noise modelling to determine potential noise mitigation measures (if any) to be implemented as required in order to comply with relevant road traffic noise criteria.  A comprehensive report on the noise model and results in accordance with SPP 5.4 Implementation Guideline.

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1.5 Approach The road traffic noise assessment in accordance with SPP 5.4 was undertaken as follows:

 Identification of sensitive receptors and selection of two representative locations for unattended noise monitoring.  Unattended monitoring was undertaken for one week at each site. Noise monitoring was used to provide existing noise measurements and to verify the noise model.  Develop a validated road traffic noise model to assess noise impacts from the potential increase in traffic movements associated with the Armadale Road to North Lake Road project.  Model implementing higher noise barrier walls to mitigate noise to sensitive receptors. The potential noise impacts associated with the traffic movements were assessed with consideration of typical SWTC requirements. The noise assessment was conducted in accordance with SPP 5.4 Implementation Guideline.

1.6 Limitations This report has been prepared by the Metropolitan Roads Improvement Alliance (MRIA) and may only be used and relied on by Main Roads WA for the purpose agreed between MRIA and the Main Roads WA as set out in Section 1.4 of this report. MRIA otherwise disclaims responsibility to any person other than Main Roads WA arising in connection with this report. MRIA also excludes implied warranties and conditions to the extent legally permissible. The services undertaken by MRIA in connection with preparing this report were limited to those specifically detailed in the report and are subject to the scope limitations set out in the report. In conducting this noise assessment and preparing the report, current guidelines for noise monitoring and assessment were referred to, including State Planning Policy 5.4: Road and Rail Transport Noise and Freight Considerations in Land Use Planning (SPP 5.4). Investigations undertaken in respect to this report are constrained by the particular site conditions. As a result, not all relevant site features and conditions may have been identified in this report. Site conditions may change after issuing of this Report. MRIA does not accept responsibility arising from, or in connection with, any change in the site conditions. MRIA is also not responsible for updating this report if the site conditions change. The opinions, conclusions and any recommendations in this report are based on conditions encountered and information reviewed at the date of preparation of the report. MRIA has no responsibility of obligation to update this report to account for events or changes occurring subsequent to the date that the report was prepared.

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2 NOISE CRITERIA

2.1 Scope of Work and Technical Criteria Noise criteria for this assessment have been established based on the typical Main Roads Scope of Work and Technical Criteria (SWTC) as follows:

2.1.1 General Traffic noise mitigation structures must be designed and constructed to ensure that noise affecting existing residence and other noise sensitive land uses (as defined in Western Australian Planning Commission State Planning Policy 5.4) caused by predicted traffic in 2041 does not exceed the “Noise Level Objectives” as defined in clause (2.1.2). The project scope includes part new road construction and part road upgrade. For the upgrade works, there is no requirement to meet the targets or limits of SPP 5.4. Noise wall on the boundary of existing residences and verge of a road must not exceed 4.0 m. Noise walls on existing property boundaries more than 3.0 m high must have panels above the 3.0 m height manufactured from clear or tinted acrylic material.

2.1.2 Noise Level Objectives Noise level objectives are specified upper limits of traffic noise which apply outside residential buildings and other noise sensitive land uses (as defined in Western Australian Planning Commission State Planning Policy 5.4). They are listed in Table 2-1. The noise level objective limits in Table 2-1 must also be applied outside public buildings such as hospitals, schools, places of worship and libraries which have uses sensitive to noise.

Table 2-1 – Noise Level Objective Limits

Time Period Base Objective Objective Target Limits

Day (16 hour) LAeq 60 dBA LAeq 55 dBA 6:00 am to 10:00 pm

Night (8 hour) LAeq 55 dBA LAeq 50 dBA 10:00 pm to 6:00 am

In assessing noise levels, the following apply:

(A) Noise is assessed 1.0 m from a building, 1.5 m above ground floor level. (B) Noise level objectives relate to the total traffic noise expected at a building facade, that is, noise from the major road and any other road. (C) Noise levels are to be recorded to the nearest 0.1 dBA and then rounded to the nearest 1 dBA for reporting and assessment against noise level objectives.

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The Project Works must not prevent the future construction of noise walls at the most appropriate location when required due to subsequent residential development.

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3 NOISE MONITORING

3.1 Noise Monitoring Locations Noise monitoring was used to measure existing noise levels experienced by receptors located within the project area. Unattended noise monitoring was undertaken at two sites, on the south side of Armadale Road. The monitoring locations were chosen to provide good representation of the existing ambient noise environment. The monitoring locations were also identified as being safe and secure for unattended equipment, minimising the risk of theft or vandalism. The two monitoring locations are shown in Figure 3-1 to Figure 3-3. To avoid confusion, throughout this report the monitoring locations are referred to as Sites A and B. A summary of relevant information such as site coordinates and distance to the nearest road is provided in Table 3-1. Figure 3-4 to Figure 3-7 provides photos of the monitoring sites, with the logger unattended monitoring setups.

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Site A Site B

Figure 3-1 Noise Monitoring Locations

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Figure 3-3 Site B Noise Monitoring Location Figure 3-2 Site A Noise Monitoring Location

Table 3-1 Noise Monitoring Location Summary

Site ID Description Easting (m) Northing (m) Distance from Logger to Armadale Road (m)

A Representative of noise levels 393154 6444861 ~ 30 experienced to south side of Armadale Road between Beeliar Drive and Tapper Road. Positioned at 8 Tylee Cove, Atwell

B Representative of noise levels 392813 6444885 ~ 20 experienced to south side of Armadale Road where the road changes into Beeliar Drive. Positioned at 23 Mahogany Loop, Atwell.

Further details are provided in the noise monitoring site summaries for each site, provided in Appendix C.

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Figure 3-4 Site A Facing South Figure 3-5 Site A Facing North

Figure 3-6 Site B Facing West Figure 3-7 Site B Facing North

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3.1 Unattended Noise Monitoring Unattended noise logging was conducted between 31 October and 8 November 2017, using two Rion NL-42 environmental noise loggers. The instruments were programmed to accumulate environmental noise data continuously over sampling periods of 15 minutes for the entire monitoring period. Table 3-2 provides details of the noise loggers used.

Table 3-2 Noise Monitoring Location Summary

Environmental Noise Logger 1 Environmental Noise Logger 2

Model Rion NL- 42EX Rion NL- 42EX

Serial number 0572491 0410013

Type Type 2 Type 2

Time interval 15-minutes 15-minutes

Frequency weighting A weighted A weighted

Calibration certification date 23/06/2017 02/02/2016

Prior to deployment and at monitoring completion, the loggers were calibrated with a sound pressure level of 94 dB at 1 kHz using a Larson Davis CAL200 sound level calibrator. The data collected by the loggers was downloaded and analysed and any invalid data removed. All noise sampling activities were undertaken with consideration to the specifications outlined in AS 1055-1997 - Description and Measurement of Environmental Noise.

3.2 Monitoring Results Unattended noise logging was conducted at residential sensitive receptors along Armadale Road. Table 3-4 details the LA10 (18 hour), LAeq (16 hour) (day) and LAeq (8 hour) (night) traffic noise levels at the monitoring locations and provides the rating background level (RBL) for each location. The RBL provides the overall single figure background level representing each assessment period (day/ night) over the whole monitoring period. It is defined as the median value of:  All the day assessment traffic noise levels over the monitoring period for the day (6:00 am to 10:00 pm)  All the night assessment background levels over the monitoring period for the night (10:00 pm to 6:00 am) Daily noise levels for the monitoring period are provided in graphical format in Appendix D. The corresponding meteorological conditions from the area[1] (precipitation, air temperature, relative humidity and wind speed and direction) for each site are also provided in

1 Bureau of Meteorology, 2017. Jandakot Daily Weather Observations. Available online: http://www.bom.gov.au/climate/dwo. Accessed 9 November 2017

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Table 3-3. Periods of rainfall of >0.2 mm and wind speed >5 m/s at the noise logger have been excluded from the assessment. The full set of the calculated statistical noise levels can be provided upon request.

Table 3-3 Meteorological Data for Jandakot Date Temperature (C) Wind Speed (m/s) Wind Direction Rain (mm) 9:00 am 3:00 pm 9:00 am 3:00 pm 9:00 am 3:00 pm Tues 31 Oct 17 20.2 25.1 3.6 7.8 SSW SW 0 Wed 1 Nov 17 21.4 27.5 6.1 7.8 ESE SW 0 Thurs 2 Nov 17 19.3 26.2 7.2 4.7 ESE ESE 0 Fri 3 Nov 17 19 23.4 4.7 7.2 NE WSW 0 Sat 4 Nov 17 22.5 29.1 5.3 6.7 ESE SSW 0 Sun 5 Nov 17 21.7 30.1 6.7 6.7 E ESE 0 Mon 6 Nov 17 23.9 31.9 5.6 5.6 ENE E 0 Tues 7 Nov 17 26.6 35 6.7 3.6 ENE N 0 Wed 8 Nov 17 27.9 32.3 6.1 6.7 N WSW 0

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Table 3-4 Noise Logging Results – Traffic Noise, dBA

Date LA10 (18 hour) LAeq (16 hour) (day) LAeq (8 hour) (night) (6:00 am to 12:00 am) (6:00 am to 10:00 pm) (10:00 pm to 6:00 am) Site A Site B Site A Site B Site A Site B Tues 31 Oct 17 53.8 59.6 52.5 58.4 50.0 53.6 Wed 1 Nov 17 55.3 60.0 53.4 58.7 50.1 52.9 Thurs 2 Nov 17 56.7 60.9 54.8 59.8 52.5 55.3 Fri 3 Nov 17 55.2 60.6 55.4 59.5 50.6 52.8 Sat 4 Nov 17 55.2 59.7 54.0 57.9 51.1 53.7 Sun 5 Nov 17 54.9 61.6 53.4 61.0 53.0 61.4 Mon 6 Nov 17 56.5 63.9 54.9 64.1 50.7 54.3 Tues 7 Nov 17 54.6 59.7 53.0 59.4 49.3 54.1 Wed 8 Nov 17 56.5 61.8 54.0 59.3 - - RBL(all days) 55.2 60.6 54.0 60.2 51.1 55.9 RBL(weekdays) 53.8 59.6 54.1 60.3 50.7 53.9

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Site A – 8 Tylee Cove, Atwell The measured noise levels at this location are dominated by road traffic along Armadale Road. Noise monitoring was undertaken with the noise logger located approximately 30 m from the closest traffic lane. The received LAeq (16 hr) (day) and LAeq (8 hr) (night) noise levels at the residence were measured at 54 dBA and 51 dBA, respectively. These noise levels are below the target noise criteria of 55 dBA day and 50 dBA night.

Site B - 23 Mahogany Loop, Atwell The measured noise levels at this location are dominated by road traffic along Armadale Road. Noise monitoring was undertaken with the noise logger located approximately 20 m from the closest traffic lane. The received LAeq (16 hr) (day) and LAeq (8 hr) (night) noise levels at the residence were measured at 60 dBA and 54 dBA, respectively. These noise levels are above the target noise criteria of 55 dBA day and below the target noise criteria of 50 dBA night, but compliant with the noise limit of 60 dBA day.

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4 NOISE MODELLING

4.1 Modelling Inputs and Assumptions The noise model inputs and assumptions for 2017 and 2041 noise model configurations are presented in Table 4-1.

Table 4-1 Operational Noise Model Inputs and Assumptions

Inputs/Assumptions Data Incorporated into Noise Model

Noise model SoundPLAN Version 7.4

Prediction algorithm United Kingdom Department of Transport, Calculation of Road Traffic Noise (CoRTN)

Heavy vehicle % Day and night heavy vehicle (HV) percentages assumed to be the same as current measured traffic data

Verification model traffic speeds Existing measured speeds from tube count: Armadale Road westbound: - West of Solomon - 70 km/h - East of Solomon - 70 km/h Armadale Road eastbound: - West of Solomon - 70 km/h - East of Solomon - 70 km/h

Future traffic speeds Speeds for future design year as provided by the design team: 70 km/h

Traffic volumes Refer to Table 4-2

Low traffic flow correction Disabled

Road gradient Taken into account based on the road design

Terrain resolution 1 m

Buildings Buildings modelled at 4.5 m, digitised from aerial imagery

Façade noise maps 1.5 m receiver height (ground floor), 1 m from building façade

Road surface adjustments Existing: Open grade asphalt (OGA): - 2.5 dB (Kwinana Freeway and ramps) Dense grade asphalt (DGA): + 0 dB

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Inputs/Assumptions Data Incorporated into Noise Model Proposed: OGA: - 2.5 dB (Kwinana Freeway and ramps) DGA: + 0 dB (Old Armadale and main alignment) SMA: -1.5 dB (Armadale Road east of Tapper Drive)

Façade correction +2.5 dBA to account for noise reflected from the façade.

CoRTN conversion factors CoRTN predicts LA10( 1-hr) noise levels which is converted to the LAeq (1-hr) descriptor with a -3 dBA correction factor

CoRTN factor (Adapted to Australian -1.7 façade conditions through research undertaken -0.7 freefield by the Australian Road Research Board)

Source height Cars - 0.5 m Truck engines - 1.5 m Truck exhausts - 3.6 m, includes -8 dBA source correction

Receiver heights 1.5 m above ground level (ground floor) 4.5 m above ground level (first floor)

Ground absorption G = 0.6

Fences and existing noise walls Permanent fences and noise walls have been included in the model.

4.2 Traffic Data The annual average daily traffic (AADT) counts for 2017 and the future traffic volumes adjusted for 2041 for Armadale Road based on a 1.5% annual growth rate from the 2031 ROM data are provided in Table 4-2 and Table 4-3. Predicted traffic volumes are the same for both Options 2 and 3.

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Table 4-2 Annual Average Daily Traffic Data for 2017 and 2041 No Build[2]

2017 No Build 2041 No Build Section Direction LV HV LV HV Eastbound 19038 2222 27214 3176 Armadale Road, west of Kwinana ramps Westbound 13686 1010 19564 1444 Eastbound 13856 1582 19807 2261 Armadale Road, between Kwinana ramps Westbound 8842 411 12639 588 Eastbound 17819 2071 25473 2961 Armadale Road, East of Kwinana ramps to Solomon Westbound 18102 1556 25877 2224 Eastbound 11856 850 16948 1216 Armadale Road, East of Solomon Westbound 18314 1378 26180 1970 Armadale Road On ramp intersect (Kwinana Fwy NB) Northbound 5147 637 5286 653 Armadale Road On ramp intersect (Kwinana Fwy SB) Southbound 5506 680 12325 1523 Armadale Road Off ramp intersect (Kwinana Fwy NB) Northbound 4130 510 6589 814 Armadale Road Off ramp intersect (Kwinana Fwy SB) Southbound 9630 1190 7048 870

2 Kwinana Freeway and ramps assumed same as Kwinana Freeway Widening modelling volumes

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Table 4-3 Annual Average Daily Traffic Data for 2041 Build

2041 Build Section Direction LV HV Eastbound 7339 552 Armadale Road, Solomon to Tapper (left lane) Westbound 7123 536 Eastbound 17362 2368 Armadale Road, Solomon to Tapper (right lane) Westbound 15217 2075 Eastbound 20834 2841 Armadale Road, West of Kwinana Freeway Westbound 15217 2075 Eastbound 18281 2493 Armadale Road, East of Kwinana to Service Road Westbound 17157 2340 Eastbound 17770 2423 Armadale Road, Service Road to Viaduct Westbound 16647 2270 Eastbound 27268 3718 Armadale Road, Tapper to Ghostgum Westbound 24000 3273 Eastbound 24102 3287 Armadale Road, Ghostgum to Liddelow Westbound 24000 3273 Eastbound 17109 1692 Old Armadale Road, east of Kwinana ramps Westbound 16792 1661 Eastbound 22812 2256 Old Armadale Road, west of Kwinana ramps Westbound 28937 2862 Eastbound 16686 1650 Old Armadale Road, between Kwinana ramps Westbound 27366 3041 Kwinana Freeway on ramp from Armadale Road Northbound 2507 279 Kwinana Freeway off ramp to Armadale Road Southbound 2120 317 Northbound 6462 966 Kwinana Freeway ramps to Old Armadale Road Southbound 18073 2701 Northbound 13429 2007 Kwinana Freeway ramps from Old Armadale Road Southbound 5351 800

4.3 Noise Model Verification The purpose of model validation is to demonstrate that the noise model produced for the existing situation is an accurate representation of the real world within the limitations of the prediction algorithm and to identify errors associated with geospatial data and modelling approach. This is to provide greater confidence in the recommendations and assessment completed for the proposed situation which will be validated post construction.

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Table 4-4 shows the measured noise levels, predicted noise levels and the difference between measured and predicted noise levels at two locations within the study area. The results are discussed below by drawing a comparison between measured and predicted noise levels. A review of the difference between predicted and measured day noise levels in Table 4-4 shows that the predicted noise levels are generally within or marginally outside the accepted modelling tolerance of +/- 2 dB. The model was calibrated to ensure that day time noise levels represent the measured day noise levels. The measured day noise levels were considerably lower than the modelled day noise levels due to a number of factors, whereas the measure night noise levels were accurately represented by the model. It was noted that congested traffic flows exist along Armadale Road during day time hours, resulting in lower received noise levels. Armadale Road eastbound merges into one lane which congests traffic. Armadale Road westbound right lane is congested at the right hand turning lane as cars turn right at Solomon Road and then further along at the Kwinana Freeway north on ramp. The model does not take into the account congested traffic flows as it is assumed traffic is free flowing and continuous at the signed speed limit. The model was therefore calibrated to ensure predicted day time levels, which are the controlling criteria for road traffic noise, were within accepted variance (+/- 2 dB) . This calibration leads to predicted night noise levels which are slightly under predicted.

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Table 4-4 Noise Model Verification, dBA

Location Distance from LAeq (16-hr) (Day) dBA Change LAeq (8-hr) (Night) dBA Change dBA Logger to (6:00 am – 10:00 pm) dBA (6:00 am – 10:00 pm) Armadale Road (m) Measured Modelled Measured Modelled

Site A 8 Tylee Cove, ~ 30 54.1 58 3.4 50.7 47 -4.1 Atwell

Site B 23 Mahogany ~ 20 60.3 61 0.4 53.9 50 -4.3 Loop, Atwell

Average 1.9 -4.2 Standard 2.1 0.1 Deviation

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4.4 Predicted Noise Levels Noise levels are predicted to increase significantly (by more than 2 dB) at the majority of receptors as a result of increased traffic flows in 2041. The following scenarios were modelled to assess predicted noise impacts against the criteria at sensitive receptors adjacent to the westbound carriageway on Armadale Road. 1. 2041 Build Option 2 (Walls – 3 m): This option includes 3 m noise barriers to replace existing 1.8 m barriers along the property boundaries on the east side of the Solomon Road intersection. 2. 2041 Build Option 2 (Walls – 4 m): This option includes 4 m noise barriers to replace existing 1.8 m barriers along the property boundaries on the east side of the Solomon Road intersection. 3. 2041 Build Option 3 (Walls – 3 m): This option includes 3 m noise barriers to replace existing 1.8 m barriers along the property boundaries on the east side of the Solomon Road intersection. 4. 2041 Build Option 3 (Walls – 4 m): This option includes 4 m noise barriers to replace existing 1.8 m barriers along the property boundaries on the east side of the Solomon Road intersection. A 2.4 m high noise wall/screen was also included along the southern side of the elevated viaduct for the full extent of the viaduct and approach embankments under each option. The existing 3 m noise barrier along Kwinana Freeway south was included in the modelling and was extended to 4 m for the all four build scenarios. Day façade noise maps for Existing 2017, 2041 No Build and four Build 2041 scenarios are provided in Appendix D. All road traffic noise levels include relevant façade corrections and show the highest overall road traffic noise level at the façade for each building. A summary table of the number of sensitive receptors exceeding the 60 dBA day criterion under each option is shown in Table 4-5. The project has been divided into a number of Noise Catchment Areas (NCA) to group receptors in similar exposures/criteria.

The difference in the measured and modelled noise levels for LAeq (Day) and LAeq (Night) are shown in Table 4-4. As the day time predicted noise levels are the limiting factor, only the day time predicted noise levels are reported. It was noted that for sensitive receptors such as the childcare centre operation hours are during the day which also depended on using day time noise levels.

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Table 4-5 Summary Table of Noise Criteria Exceedances

Noise Sensitive Receptors Exceeding 60 dBA Criteria Comments Catchment Area 2017 2041 No 2041 Build Option 2, 2041 Build Option 2, 2041 Build 2041 Build Option 3 Build 3 m wall 4 m wall Option 3, 3 m wall 4 m wall

NCA 1 2 5 8 8 8 8 No mitigation required – Outside project scope

NCA 2 12 25 15 15 15 15 Mitigation may be required – Refer to Table 4-6

NCA 3 0 0 1 1 1 1 Mitigation may be required - Refer to Table 4-6

NCA 4 0 2 5 5 7 7 Mitigation assumed to be undertaken by developer

NCA 5 3 4 4 4 4 4 Mitigation may be required - Refer to Table 4-6

NCA 6 25 29 6 3 5 3 Mitigation may be required - Refer to Table 4-6

NCA 7 45 86 83 83 83 83 No mitigation required – Outside project scope

NCA 8 34 45 46 46 46 46 No mitigation required – Outside project scope

All Areas 40 60 31 28 32 30 Total exceedances which may require mitigation

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4.5 Assessment of Impacts and Recommendations Table 4-6 presents results for the sensitive receptors, as shown in Figure 4-1 to Figure 4-6, where the predicted noise level exceeds the day noise limit of 60 dBA. The day predicted noise levels are shown at the most effected façade of the sensitive receptors for the Existing 2017, No Build 2041, Build 2041 Option 2-3 m, Build 2041 Option 2-4 m, Build 2041 Option 3-3 m and Build 2041 Option 3-4 m noise scenarios. Noise catchment areas are also shown on the maps to categorise the affected receptors. The noise barriers shown in Figure 4-1 to Figure 4-6 mitigate noise levels to below the day noise limit (60 dBA) at the majority of sensitive receptors. Some receptors experience a marginal exceedance (< 2 dBA) of the criteria). Receptors exceeding the criteria by more than 2 dBA are generally located at the edge of the barriers or in areas where barriers are not considered feasible. NCA 1 is not included in the project extent as it is part of the Kwinana Freeway Widening Project. NCA 2 has been modelled with a 4 m wall to mitigate noise – the current estate wall is 3 m high. As the project includes a collector distributor road past the properties in this area, further noise reduction may have to be investigated at some properties during detailed design stage. NCA 3 is an industrial area but there is a child care centre present. At property inspection recommended. NCA 4 covers a new subdivision which has development approval (DA) conditions where noise mitigation is required to be provided by the developer. Therefore, no mitigation is required to be provided by the project. At property inspections are recommended for those properties within NCA 5 to determine the need for at-property treatments. For NCA 6 further assessment will be required during detailed design to determine if additional mitigation is required. For NCA 7 and NCA 8 it is noted that the project does not include any substantial work in these areas. As predicted No Build 2041 and Build 2041 results are very similar, the project has been determined to not impact these houses and therefore no noise mitigation is proposed. For clarity and completeness of this report, non-residential properties (such as commercial, sheds and garages) have not been highlighted as such structures do not require noise treatment in accordance with the State Planning Policy 5.4. Page 25 of 41 As part of the project would be considered as an upgrade to existing roads with no widening (particularly on the western side of the Kwinana Freeway adjacent to North Lake Road), SPP 5.4 would not require these areas to meet noise targets or limits. Further noise assessment will be conducted as part of the detailed design to determine reasonable and practicable noise mitigation measures in accordance with SPP 5.4.

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Table 4-6 Noise Criteria Exceedances

Noise Levels (dBA) Treatment Receptor Type Existing No Build 2041 Build 2041 Build 2041 Build 2041 Required Comments 2017 Build Option 2, 3 m Option 2, Option 3, Option 3, (Yes/No) 2041 wall 4 m wall 3 m wall 4 m wall

Noise Catchment Area 2

1 Residential 59 61 59 59 59 59 No 4 m wall required. No further mitigation required in build scenarios.

2 Residential 60 61 59 59 59 59 No 4 m wall required. No further mitigation required in build scenarios.

3 Residential 59 61 59 59 59 59 No 4 m wall required. No further mitigation required in build scenarios.

4 Residential 59 61 60 60 60 60 No 4 m wall required. No further mitigation required in build scenarios.

5 Residential 59 61 60 60 60 60 No 4 m wall required. No further mitigation required in build scenarios.

6 Residential 60 62 60 60 60 60 No 4 m wall required. No further mitigation required in build scenarios.

7 Residential 60 62 60 60 60 60 No 4 m wall required. No further mitigation required in build scenarios.

8 Residential 60 62 60 60 60 60 No 4 m wall required. No further mitigation required in build scenarios.

9 Residential 60 62 60 60 60 60 No 4 m wall required. No further mitigation required in build scenarios.

10 Residential 61 62 60 60 60 60 No 4 m wall required. No further mitigation required in build scenarios.

11 Residential 61 63 61 61 61 61 Yes Consider further mitigation measures at detailed design stage. Currently exceeds noise limit.

12 Residential 62 63 61 61 61 61 Yes Consider further mitigation measures at detailed design stage. Currently exceeds noise limit.

13 Residential 62 63 61 61 61 61 Yes Consider further mitigation measures at detailed design stage. Currently exceeds noise limit.

14 Residential 62 64 62 62 62 62 Yes Consider further mitigation measures at detailed design stage. Currently exceeds noise limit.

15 Residential 63 64 62 62 62 62 Yes Consider further mitigation measures at detailed design stage. Currently exceeds noise limit.

16 Residential 61 62 61 61 61 61 Yes Consider further mitigation measures at detailed design stage. Currently exceeds noise limit.

17 Residential 63 65 62 62 62 62 Yes Consider further mitigation measures at detailed design stage. Currently exceeds noise limit.

18 Residential 63 64 62 62 62 62 Yes Consider further mitigation measures at detailed design stage. Currently exceeds noise limit.

19 Residential 63 65 62 62 62 62 Yes Consider further mitigation measures at detailed design stage. Currently exceeds noise limit.

20 Residential 59 61 60 60 60 60 No 4 m wall required. No further mitigation required in build scenarios.

Metropolitan Road Improvement Alliance Page 26 of 41 Issue Date: 08/08/2018 Armadale Road to North Lake Road Bridge - Noise Assessment Report

21 Residential 62 64 62 62 62 62 Yes Consider further mitigation measures at detailed design stage. Currently exceeds noise limit.

22 Residential 63 64 63 63 63 63 Yes Consider further mitigation measures at detailed design stage. Currently exceeds noise limit.

23 Residential 60 62 61 61 61 61 Yes Consider further mitigation measures at detailed design stage.

24 Residential 60 62 62 62 62 62 Yes Consider further mitigation measures at detailed design stage.

25 Residential 60 61 62 62 62 62 Yes Consider further mitigation measures at detailed design stage.

26 Residential 59 60 61 61 61 61 Yes Consider further mitigation measures at detailed design stage.

Noise Catchment Area 3

27 Child care 58 60 68 68 68 68 Yes At property inspection recommended. centre

Noise Catchment Area 4

28 Residential 54 56 60 60 61 61 No Developer responsible for noise mitigation.

29 Residential 55 56 61 61 61 61 No Developer responsible for noise mitigation.

30 Residential 55 57 62 62 62 62 No Developer responsible for noise mitigation.

31 Residential 57 59 63 63 64 64 No Developer responsible for noise mitigation.

32 Residential 59 61 65 65 65 65 No Developer responsible for noise mitigation.

33 Residential 60 61 65 65 65 65 No Developer responsible for noise mitigation.

34 Residential 56 57 60 60 61 61 No Developer responsible for noise mitigation.

Noise Catchment Area 5

35 Residential 65 67 65 65 65 65 Yes At property inspection recommended.

36 Residential 62 63 62 62 62 62 Yes At property inspection recommended.

37 Residential 61 62 61 61 61 61 Yes At property inspection recommended.

38 Residential 60 62 61 61 61 61 Yes At property inspection recommended.

Noise Catchment Area 6

39 Residential 60 61 60 59 59 59 No No mitigation required in build scenarios.

40 Residential 61 63 61 58 58 60 Yes Consider further mitigation during detailed design for Option 2, 3 m wall.

41 Residential 66 67 61 57 58 58 Yes Consider further mitigation during detailed design for Option 2, 3 m wall.

42 Residential 61 62 59 57 59 58 No No mitigation required in build scenarios.

43 Residential 65 67 60 58 60 58 No No mitigation required in build scenarios.

Metropolitan Road Improvement Alliance Page 27 of 41 Issue Date: 08/08/2018 Armadale Road to North Lake Road Bridge - Noise Assessment Report

44 Residential 64 66 60 61 60 57 Yes Mitigation required in No Build and Option 2, 4 m wall scenarios.

45 Residential 64 66 59 58 58 56 No No mitigation required in build scenarios.

46 Residential 64 65 58 57 59 55 No No mitigation required in build scenarios.

47 Residential 64 66 58 59 59 55 No No mitigation required in build scenarios.

48 Residential 60 61 57 60 61 56 No Mitigation required in No Build and Option 2, 3 m wall scenarios.

49 Residential 64 65 58 57 56 56 No No mitigation required in build scenarios.

50 Residential 64 66 59 57 57 57 No No mitigation required in build scenarios.

51 Residential 64 65 60 57 59 57 No No mitigation required in build scenarios.

52 Residential 64 66 60 58 58 57 No No mitigation required in build scenarios.

53 Residential 64 66 60 57 57 57 No No mitigation required in build scenarios.

54 Residential 64 66 60 59 57 56 No No mitigation required in build scenarios.

55 Residential 60 61 59 58 59 56 No No mitigation required in build scenarios.

56 Residential 69 70 64 59 61 65 Yes Mitigation required in No Build, Option 2, 3 m wall and Option 3 scenarios.

57 Residential 61 62 59 59 58 58 No No mitigation required in build scenarios.

58 Residential 64 65 61 64 65 60 Yes Consider further mitigation during detailed design for Option 2, 3 m and 4 m wall and Option 3, 3 m wall.

59 Residential 59 61 58 65 66 56 No Mitigation required in No Build, Option 2, 4 m wall and Option 3, 3 m wall scenarios.

60 Residential 62 63 59 60 62 57 No Mitigation required in No Build and Option 3, 3 m wall scenarios.

61 Residential 63 64 59 57 60 57 No No mitigation required in build scenarios.

62 Residential 62 63 58 58 60 56 No No mitigation required in build scenarios.

63 Residential 62 64 59 58 60 59 No No mitigation required in build scenarios.

64 Residential 64 66 59 58 59 58 No No mitigation required in build scenarios.

65 Residential 63 65 59 57 58 58 No No mitigation required in build scenarios.

66 Residential 64 65 61 58 58 62 Yes Mitigation required in No Build and Option 2, 3 m wall and Option 3, 4 m wall scenarios.

Metropolitan Road Improvement Alliance Page 28 of 41 Issue Date: 08/08/2018 Armadale Road to North Lake Road Bridge - Noise Assessment Report

67 Residential 68 70 65 58 56 66 Yes Mitigation required in No Build and Option 2, 3 m wall and Option 3, 4 m wall scenarios.

Metropolitan Road Improvement Alliance Page 29 of 41 Issue Date: 08/08/2018 4800

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0 200 400 600 800 Armadale Road to North Lake Road - Noise Assessment Report

APPENDIX A NOISE TERMINOLOGY

Description of Noise Terms

Ambient noise Level of noise from all sources, including background noise from near and far and the source of interest. A-weighted A-weighted noise level has been filtered in such a way as to represent the way in which the human ear perceives sound. This weighting reflects the fact that the human ear is not as sensitive to lower frequencies as it is to higher frequencies. A-weighted sound level is described as LA dB. Background noise Noise level from sources other than the source of concern. dB Decibel is the unit that describes the sound pressure and sound power levels of a noise source. It is a logarithmic scale referenced to the threshold of hearing. dBA Unit used to measure ‘A-weighted’ sound pressure levels. Hz Units for frequency are known as Hertz. Impulsive noise An impulsive noise source has a short-term banging, clunking or explosive sound. The quantitative definition of impulsiveness is: - A variation in the emission of a noise where the difference between LApeak and LAmax slow is more than 15 dB when determined for a single representative event. LAslow This is the noise level in decibels, obtained using A-weighting and S time weighting as specified in AS1259.1-1990. Unless assessing modulation, all measurements use the slow time weighting characteristic. LAfast This is the noise level in decibels, obtained using A-weighting and F time weighting as specified in AS1259.1-1990. This is used when assessing the presence of modulation only. LApeak This is the maximum reading in decibels using A-weighting and P time weighting as specified in S1259.1-1990. LAmax LAmax level is the maximum A-weighted noise level during a particular measurement. LA1 LA1 level is the A-weighted noise level which is exceeded for one percent of the measurement period and is considered to represent the average of the maximum noise levels measured. LA10 LA10 level is the A-weighted noise level which is exceeded for 10 percent of the measurement period and is considered to represent the intrusive noise level.

LA90 LA90 level is the A-weighted noise level which is exceeded for 90 percent of the measurement period and is considered to represent the background noise level. LAeq The equivalent steady state A-weighted sound level (‘equal energy’) in decibels which, in a specified time period, contains the same acoustic energy as the time- varying level during the same period. It is considered to represent the average noise level. LAmax assigned level Means an assigned level which, measured as a LAslow value, is not to be exceeded at any time. LA1 assigned level Means an assigned level which, measured as a LAslow value, is not to be exceeded for more than one percent of the representative assessment period. LA10 assigned level Means an assigned level which, measured as a LAslow value, is not to be exceeded for more than 10 percent of the representative assessment period. Linear Sound levels measured without any weightings are referred to as ‘linear’ and the units are expressed as dB(lin). L linear, peak Maximum reading in decibels obtained using P-time-weighting characteristic as specified in AS 1259.1-1990. Maximum design sound level The level of noise above which most people occupying the space start to become dissatisfied with the level of noise.

Metropolitan Road Improvement Alliance Issue Date: 08/08/2018 Armadale Road to North Lake Road Bridge - Noise Assessment Report

Modulating noise A modulating source is regular, cyclic and audible and is present for at least 10 percent of the measurement period. The quantitative definition of modulation is: A variation in the emission of noise that - - Is more than 3 dB LAfast or is more than 3 dB LAfast in any one-third octave band - Is present for at least 10 percent of the representative assessment period - Is regular, cyclic and audible One-third octave band Means a band of frequencies spanning one-third of an octave and having a centre frequency between 25 Hz and 20,000 Hz inclusive. Rating background level The overall single-figure background level representing each assessment period (RBL) (day/evening/night) over the whole monitoring period (as opposed to over each 24-hour period used for the assessment background level). This is the level used for assessment purposes. It is defined as the median value of: - All the day assessment background levels over the monitoring period for the day (7:00 am to 6:00 pm) - All the evening assessment background levels over the monitoring period for the evening (6:00 pm to 10:00 pm) - All the night assessment background levels over the monitoring period for the night (10:00 pm to 7:00 am) Representative assessment Means a period of time not less than 15 minutes and not exceeding four hours, period determined by an inspector or authorised person to be appropriate for the assessment of a noise emission, having regard to the type and nature of the noise emission. Reverberation time Of an enclosure, for a sound of a given frequency or frequency band, the time that would be required for the reverberantly decaying sound pressure level in the enclosure to decrease by 60 decibels. RMS Root mean square level; used to represent the average level of a wave form such as vibration. Satisfactory design sound The level of noise that has been found to be acceptable by most people for the level environment in question and also to be not intrusive. Sound pressure level (LP) The sound pressure level of a noise source is dependent upon its surroundings (influenced by distance, ground absorption, topography, meteorological conditions etc.) and is what the human ear actually hears. Noise modelling predicts the sound pressure level from the sound power levels taking into account ground absorption, barrier effects, distance etc. Sound power level (LW) Under normal conditions, a given sound source will radiate the same amount of energy, irrespective of its surroundings, being the sound power level. The sound power level of a noise source cannot be directly measured using a sound level meter but is calculated based on measured sound pressure levels at known distances. Noise modelling incorporates source sound power levels as part of the input data. Specific noise Relates to the component of the ambient noise that is of interest. This can be referred to as the noise of concern or the noise of interest Tonal noise A tonal noise source can be described as a source that has a distinctive noise emission in one or more frequencies. An example would be whining or droning. The quantitative definition of tonality is: - The presence in the noise emission of tonal characteristics where the difference between - - The A-weighted sound pressure level in any one-third octave band - The arithmetic average of the A-weighted sound pressure levels in the two adjacent one-third octave bands is greater than 3 dB when the sound pressure levels are determined as LAeq,T levels where the time period T is greater than 10 percent of the representative assessment period, or greater than 8 dB at any time when the sound pressure levels are determined as LAslow levels. This is relatively common in most noise sources.

Metropolitan Road Improvement Alliance Issue Date: 08/08/2018 Armadale Road to North Lake Road Bridge - Noise Assessment Report

Vibration velocity level The RMS velocity of a vibration source over a specified time period, measured in mm/s.

Chart of Noise Level Descriptors

Typical Noise Levels

Metropolitan Road Improvement Alliance Issue Date: 08/08/2018 Armadale Road to North Lake Road Bridge - Noise Assessment Report

APPENDIX B NOISE MONITORING SITE SUMMARIES

Metropolitan Road Improvement Alliance Issue Date: 08/08/2018

Armadale Road to North Lake Road Bridge - Noise Assessment Report

APPENDIX C MONITORING RESULTS

Metropolitan Road Improvement Alliance Issue Date: 08/08/2018 Site A

Statistical Ambient Noise Levels Tuesday 31 October 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

100 40 95

90 35 85

80 30 ( Temperature ; (m/s)Speed Wind 75

70 25 anal (mm) Rainfall 65

60 20 55

Relative Humidity(%) 50 15 Sound Pressure Level (dBA) ;

45 ° ) ; C)

40 10 35

30 5 25

20 0 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 00:00 Time of Day (End of 15 Minute Sample Interval)

Site A

Statistical Ambient Noise Levels Wednesday 1 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

100 40 95

90 35 85

80 30 ( Temperature ; (m/s)Speed Wind 75

70 25 anal (mm) Rainfall 65

60 20 55

Relative Humidity(%) 50 15 Sound Pressure Level (dBA) ;

45 ° ) ; C)

40 10 35

30 5 25

Site A

Statistical Ambient Noise Levels Thursday 2 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

100 40 95

90 35 85

80 30 ( Temperature ; (m/s)Speed Wind 75

70 25 anal (mm) Rainfall 65

60 20 55

Relative Humidity(%) 50 15 Sound Pressure Level (dBA) ;

45 ° ) ; C)

40 10 35

30 5 25

Site A

Statistical Ambient Noise Levels Friday 3 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

100 40 95

90 35 85

80 30 ( Temperature ; (m/s)Speed Wind 75

70 25 anal (mm) Rainfall 65

60 20 55

Relative Humidity(%) 50 15 Sound Pressure Level (dBA) ;

45 ° ) ; C)

40 10 35

30 5 25

Site A

Statistical Ambient Noise Levels Saturday 4 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

100 40 95

90 35 85

80 30 ( Temperature ; (m/s)Speed Wind 75

70 25 anal (mm) Rainfall 65

60 20 55

Relative Humidity(%) 50 15 Sound Pressure Level (dBA) ;

45 ° ) ; C)

40 10 35

30 5 25

Statistical Ambient Noise Levels Sunday 5 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

100 40 95

90 35 85

80 30 ( Temperature ; (m/s)Speed Wind 75

70 25 anal (mm) Rainfall 65

60 20 55

Relative Humidity(%) 50 15 Sound Pressure Level (dBA) ;

45 ° ) ; C)

40 10 35

30 5 25

Site A

Statistical Ambient Noise Levels Monday 6 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

100 40 95

90 35 85

80 30 ( Temperature ; (m/s)Speed Wind 75

70 25 anal (mm) Rainfall 65

60 20 55

Relative Humidity(%) 50 15 Sound Pressure Level (dBA) ;

45 ° ) ; C)

40 10 35

30 5 25

Site A

Statistical Ambient Noise Levels Tuesday 7 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

100 40 95

90 35 85

80 30 ( Temperature ; (m/s)Speed Wind 75

70 25 anal (mm) Rainfall 65

60 20 55

Relative Humidity(%) 50 15 Sound Pressure Level (dBA) ;

45 ° ) ; C)

40 10 35

30 5 25

Site A

Statistical Ambient Noise Levels Wednesday 8 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

100 40 95

90 35 85

80 30 ( Temperature ; (m/s)Speed Wind 75

70 25 anal (mm) Rainfall 65

60 20 55

Relative Humidity(%) 50 15 Sound Pressure Level (dBA) ;

45 ° ) ; C)

40 10 35

30 5 25

Site B

Statistical Ambient Noise Levels Tuesday 31 October 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

110 40 105 100 35 95

90 ( Temperature ; (m/s)Speed Wind 30 85 80 75 25 anal (mm) Rainfall 70 65 20 60 55

Relative Humidity(%) 15 50 Sound Pressure Level (dBA) ; ° ) ; C) 45 10 40 35 30 5 25 20 0 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 00:00 Time of Day (End of 15 Minute Sample Interval)

Site B

Statistical Ambient Noise Levels Wednesday 1 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

110 40 105 100 35 95

90 ( Temperature ; (m/s)Speed Wind 30 85 80 75 25 anal (mm) Rainfall 70 65 20 60 55

Site B

Statistical Ambient Noise Levels Thursday 2 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

110 40 105 100 35 95

90 ( Temperature ; (m/s)Speed Wind 30 85 80 75 25 anal (mm) Rainfall 70 65 20 60 55

Site B

Statistical Ambient Noise Levels Friday 3 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

110 40 105 100 35 95

90 ( Temperature ; (m/s)Speed Wind 30 85 80 75 25 anal (mm) Rainfall 70 65 20 60 55

Site B

Statistical Ambient Noise Levels Saturday 4 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

110 40 105 100 35 95

90 ( Temperature ; (m/s)Speed Wind 30 85 80 75 25 anal (mm) Rainfall 70 65 20 60 55

Site B

Statistical Ambient Noise Levels Sunday 5 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

110 40 105 100 35 95

90 ( Temperature ; (m/s)Speed Wind 30 85 80 75 25 anal (mm) Rainfall 70 65 20 60 55

Site B

Statistical Ambient Noise Levels Monday 6 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

110 40 105 100 35 95

90 ( Temperature ; (m/s)Speed Wind 30 85 80 75 25 anal (mm) Rainfall 70 65 20 60 55

Site B

Statistical Ambient Noise Levels Tuesday 7 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

110 40 105 100 35 95

90 ( Temperature ; (m/s)Speed Wind 30 85 80 75 25 anal (mm) Rainfall 70 65 20 60 55

Site B

Statistical Ambient Noise Levels Tuesday 7 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

110 40 105 100 35 95

90 ( Temperature ; (m/s)Speed Wind 30 85 80 75 25 anal (mm) Rainfall 70 65 20 60 55

Site B

Statistical Ambient Noise Levels Wednesday 8 November 2017

Excluded Data LAMax LA10 LA90 LAeq Relative Humidity Temperature Rainfall Mean Wind Speed & Direction

110 40 105 100 35 95

90 ( Temperature ; (m/s)Speed Wind 30 85 80 75 25 anal (mm) Rainfall 70 65 20 60 55

Armadale Road to North Lake Road Bridge - Noise Assessment Report

APPENDIX D NOISE FACADE MAPS

2017 No Build

2041 No Build

2041 Build - Option 2 – 3 m walls

2041 Build - Option 2 – 4 m walls

2041 Build - Option 3 – 3 m walls

2041 Build - Option 3 – 4 m walls

Metropolitan Road Improvement Alliance Issue Date: 08/08/2018

2041 uild Predicted Noise Level Aeq (D y), dBA Option 2 (W 11s - 3 ) 2.4m V aduct all 21 J ne 2018

<= 5 .0 5 .0 < <= 56.0 56.0 < 57.0 57.0 < 5 .0 5 .0 < <= 59.0 59.0 < <= 60.0 60.0 < 61.0 61.0 < 62.0 62.0 < <= 63.0 63.0 < <= 64.0 64.0 < <= 65.0 65.0 <