Proposed Child Minding Centre Lot 13 (#2) Walters Road, Byford · The proposed ‘Child Minding...
Transcript of Proposed Child Minding Centre Lot 13 (#2) Walters Road, Byford · The proposed ‘Child Minding...
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Proposed Child Minding Centre
Lot 13 (#2) Walters Road, Byford
IQ Construction
January 2020
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Development Application Lot 13 (#2) Walters Road, Byford Dear Shire of Serpentine Jarrahdale, Please find enclosed all required architectural plans, reports and relevant governing documents for the application for development approval for proposed works at Lot 13 (#2) Walters in Byford. The proposed ‘Child Minding Centre’ is to be made from double-brick constriction with a timber framed roof structure, covered with custom orb metal sheeting. The proposed works is to be of a commercial use; however, the overall design is aimed so the building sits harmoniously within its residential context. The materials and colour finishes are to replicate that of the existing residence on Lot 13, to not impose on the current streetscape. The proposed development is in full compliance with the National Construction Code, Building Code of Australia, Town Planning Scheme No.2 and the Stanley Road Precinct Local Structure Plan. Detail of Use The use of the proposed development is that of a child care centre to accommodate for up to 75 children (ages from 6 months old and over) and up to 10 staff members, with an approximate hours of operation from 6am to 6pm during the weekdays. The proposed use of the site will have an impact on the surrounding properties with regards to traffic and noise, as such a Transport Impact Statement and Environmental & Transportation Noise Assessment have been conducted (full reports are included within this application). The results of both determine the impact of the proposed works to be minimal, with a few specifications to be incorporated at time of construction. Existing Site Features and Demolition The site currently has a brick and tile dwelling (with carport, rear patio and brick paved areas), fencing, retaining walls, shed and a pool. These existing structures and features are to be demolished to make way for the proposed child care centre. The natural ground level is to be modified with compact fill to allow for the proposed works, this new level will be natural graded to the existing ground level. Landscaping All existing landscaping not within the footprint of all proposed works is to remain. Proposed grassed play areas are to be of good quality grass, with
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scheduled maintenance to ensure upkeep. Proposed landscaping of low height trees and shrubs along the lot boundary are to enhance amenities and secure the play area, with additional landscaping and verge trees as deemed required by the Council. Stormwater The treatment of stormwater to the proposed child care centre is to retain all stormwater on site via soakwells. The roof cover stormwater will be directly connected to underground soakwells, while the impervious surface stormwater (carpark and driveway) will drain into surface level soakwells, as indicated on ‘P02 – Site Plan’. The surface of the carpark and driveway will be sloped to direct water to the open soakwells. All underground soakwells will be interconnected, with all surface level soakwells being interconnected. Kind regards, IQ Construction January 2020
Transport Impact Statement
Project: Proposed Child Care Centre
Lot 13 (#2) Walters Road Byford
Client: IQ Constructions
Author: Tony Shaw
Date: 30th October 2019
Document # 1910008-TIA-001
CONSULTING CIVIL AND TRAFFIC ENGINEERS 1 ST. FLOOR, 908 ALBANY HIGHWAY, EAST VICTORIA PARK WA 6101.
PHONE|+61 8 9355 1300
FACSIMILE| +61 8 9355 1922
EMAIL| admin@ shawmac.com.au
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Document Status
Version Prepared By Reviewed By Approved By Date
1 T Shaw P. Nguyen T Shaw 30/10/2019
File Reference: Y:\Jobs Active 2019\T&T - Traffic & Parking\IQ Construction_2 Walters Road, Byford_CCC_TIS_1910008\Report\IQ Construction_CCC_TIS_V1.docx
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Contents
1. Introduction .................................................................................................................................. 1
1.1. Background ............................................................................................................................................ 1
1.2. Location ................................................................................................................................................. 1
2. Proposed Development ................................................................................................................ 2
3. Traffic Management on Frontage Streets ..................................................................................... 3
3.1. Road Layout and Hierarchy ................................................................................................................... 3
3.2. Intersections ........................................................................................................................................... 3
3.3. Existing Traffic Volumes......................................................................................................................... 3
4. Vehicle Access and Parking ......................................................................................................... 5
4.1. Proposed Access and Parking ............................................................................................................... 5
4.2. Parking Demand .................................................................................................................................... 6
4.3. Access and Parking Layout.................................................................................................................... 6
4.3.1. Parking .......................................................................................................................................... 6
4.4. Access Sight Distance ........................................................................................................................... 6
4.5. Provision for Service Vehicles ................................................................................................................ 7
5. Traffic Volumes and Vehicle Types .............................................................................................. 8
5.1. Trip Generation ...................................................................................................................................... 8
5.2. Vehicle Types ........................................................................................................................................ 9
5.3. Intersections ........................................................................................................................................... 9
6. Public Transport Access ............................................................................................................ 12
7. Pedestrian and Cyclist Access ................................................................................................... 12
8. Site Specific and Safety Issues .................................................................................................. 13
8.1. Crash History ....................................................................................................................................... 13
9. Conclusions ............................................................................................................................... 13
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Figures
Figure 1: General Site Location ............................................................................................................................... 1
Figure 2: Site Location and Layout .......................................................................................................................... 2
Figure 3: Site Plan ................................................................................................................................................... 2
Figure 4: Road Network Layout and Hierarchy........................................................................................................ 3
Figure 5: 24 Hour Traffic Volume ............................................................................................................................ 4
Figure 6: AM Peak Hour Volumes ........................................................................................................................... 4
Figure 7: PM Peak Hour Volumes ........................................................................................................................... 5
Figure 8: Vehicle Access and Parking Layout ......................................................................................................... 6
Figure 9: AS2890.1 – Access Sight Distance Requirements ................................................................................... 7
Figure 10: AS2890.1 – Access Sight Distance ........................................................................................................ 7
Figure 11: Traffic Distribution .................................................................................................................................. 8
Figure 12: AM Volumes ........................................................................................................................................... 9
Figure 13: AM Existing Peak Hour Results .............................................................................................................. 9
Figure 14: AM Predicted Peak Hour Results ......................................................................................................... 10
Figure 15: PM Volumes ......................................................................................................................................... 10
Figure 16: PM Existing Peak Hour Results ............................................................................................................ 11
Figure 17: PM Predicted Peak Hour Results ......................................................................................................... 11
Figure 18: Public Transport ................................................................................................................................... 12
Tables
Table 1: Road Configuration .................................................................................................................................... 3
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1. Introduction
1.1. Background
Shawmac has been engaged to prepare a Transport Impact Statement for a proposed child care centre to be
located at 2 Walters Road in Byford. The site is within the City of Serpentine Jarrahdale. This Transport Impact
Statement has been prepared in accordance with the Western Australian Planning Commission document
Transport Assessment Guidelines for Development: Volume 4 – Individual Developments (WAPC TIA
Guidelines).
1.2. Location
The site address is Lot 13 (No. 2) Walters Road Byford and the site has frontage to Walters Road on the
southern boundary and South Western Highway on the western boundary. The western portion of the lot is
designated “Public Open Space” under a Local Structure Plan and the proposed development is planned to
occupy the eastern portion of the lot. The general location of the site shown in Figure 1 and an aerial photo of
the site is shown in Figure 2.
Figure 1: General Site Location
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Figure 2: Site Location and Layout
2. Proposed Development
The proposal development is a child care centre accommodating up to 75 children aged three and over and 10
staff. The proposed operating hours are from 6.30am to 6.30pm Monday to Friday. There is an existing single
residential building on the site and adjacent to the site, land use is predominantly residential.
The site plan is shown in Figure 3.
Figure 3: Site Plan
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3. Traffic Management on Frontage Streets
3.1. Road Layout and Hierarchy
The layout and hierarchy of the surrounding road network as obtained from the MRWA Road Information
Mapping System is shown in Figure 4.
Figure 4: Road Network Layout and Hierarchy
The road cross sections and pavement widths of the surrounding road network are summarised in Table 1.
Table 1: Road Configuration
Road Classification Cross Section Speed Limit
Walters Road Local Distributor Road Single carriageway – 2 lanes 50km/h
South Western Highway Primary Distributor Single carriageway – 2 lanes 60km/h
3.2. Intersections
The intersection of Walters Road and South Western Highway may be impacted by the development. It is
currently configured as a channelised unsignalised “T” junction.
3.3. Existing Traffic Volumes
Traffic volumes recorded by a MRWA camera survey in February 2019 are shown in Figure 5, Figure 6 and
SITE
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Figure 7 for the 24 hour period and morning and afternoon peak hours.
.
Figure 5: 24 Hour Traffic Volume
Figure 6: AM Peak Hour Volumes
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Figure 7: PM Peak Hour Volumes
4. Vehicle Access and Parking
4.1. Proposed Access and Parking
Vehicle access will be via a new crossover off Walters Road located adjacent to the eastern property boundary
which services a ninety degree parking area. On-site parking will consist of 16 ninety degree parking bays along
the driveway including 1 universal access bay.
The proposed access and parking layout is shown in Figure 8.
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Figure 8: Vehicle Access and Parking Layout
4.2. Parking Demand
The Shire of Serpentine Jarrahdale Town Planning Scheme No.2 requires one parking bay per five children
accommodated to be provided for ‘Child Minding Centres’. Based on a maximum capacity of 75 children, the
proposal needs to include a minimum of 15 parking bays. The plans provided indicate the proposal would be
compliant, having 16 parking bays on site.
4.3. Access and Parking Layout
4.3.1. Parking
The layout and dimensions of the car park have also been assessed for compliance with the requirements of
Australian Standard AS 2890.1. For short term high turnover parking the Standard recommends a bay length of
5.4 metres and an aisle width of 5.8 metres. The parking area shown on the drawings has a kerb to kerb width
of 12.09 metres which is sufficient to accommodate a compliant bay and aisle. Bay width of 2.6 metres is
required and this can be accommodated in the parking area shown.
4.4. Access Sight Distance
Figure 3.2 of AS2890.1, shown as Figure 9 prescribes the minimum required stopping sight distance (SSD) for
access driveways based on the approach speed of vehicles on the frontage road. Based on the 50km/h
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frontage speed along Walters Road, the minimum required SSD from the proposed crossovers is 83 metres.
Figure 9: AS2890.1 – Access Sight Distance Requirements
As shown in Figure 10, the sight distance is achieved towards the east and the west.
Figure 10: AS2890.1 – Access Sight Distance
4.5. Provision for Service Vehicles
Waste will be collected from Walters Road verge by council waste collection vehicles.
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5. Traffic Volumes and Vehicle Types
5.1. Trip Generation
The volume of traffic generated by the child care centre has been estimated using trip generation rates from the
NSW Roads and Maritime Services (formerly RTA) Guide to Traffic Generating Developments. The proposed
child care centre can be classified as a “Long day-care centre” with peak periods of traffic generation generally
coinciding with the peak period of traffic on the road network from 7 to 9 am and from 4 to 6 pm. The trip
generation rate is 0.8 vehicle trips per child in the morning and 0.7 vehicle trips per child in the afternoon.
Based on the 75 child capacity, the development is estimated to generate approximately 60 vehicle trips during
the morning peak period and 53 vehicle trips during the afternoon peak period.
Based on the location of the site and the layout of the road network and the access arrangement the site
generated traffic is expected to be distributed generally as shown in Figure 11.
Figure 11: Traffic Distribution
This distribution assumes that all traffic arriving in the morning will drop off children and leave by the same
reverse route; noting that this does not allow for staff whose arrival would typically be in the morning and
departure typically in the afternoon or parents that would drop children off in the morning and head off to work
via a route different from the reverse of the arrival route. As such the distribution shown is likely to overstate
movements and is considered to be conservative.
The impact on Walters Road would be greatest to the west of the site where traffic flow could increase by up to
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180 vehicles per day bringing the total daily flow from 1,330 vpd to 1,510 vpd. This is well within the capacity of
a Local Distributor road and no adverse impact is predicted.
5.2. Vehicle Types
The site is only expected to generate car trips.
5.3. Intersections
The increase in traffic is likely to have some impact on the intersection of South Western Highway and Walters
Road and in order to assess the likely effects; the intersection was modelled using SIDRA 8.0 software for both
the morning and afternoon peaks based on the volumes indicated in Figure 12 and Figure 15 and the results
are shown in Figure 13, Figure 14, Figure 16 and Figure 17.
.
Figure 12: AM Volumes
Movement Performance - Vehicles
Mov ID
OD Mov
Demand Flows Deg. Satn
Average Delay
Level of Service
95% Back of Queue Prop. Queued
Effective Stop Rate
Average Speed Total HV Vehicles
Distance
veh/h % v/c
sec
veh
m
per veh km/h
South: South Western Hwy
2 T1 822 6.0 0.419
0.2 LOS A
0.3
2.5
0.03
0.01 59.7
3 R2 13 6.0 0.419
10.6 LOS B
0.3
2.5
0.03
0.01 57.5
Approach 835 6.0 0.419
0.3 NA
0.3
2.5
0.03
0.01 59.6
East: Walters Road
4 L2 32 2.0 0.032
7.5 LOS A
0.1
0.8
0.47
0.65 52.1
6 R2 38 2.0 0.167
19.6 LOS C
0.5
3.4
0.84
0.93 44.4
Approach 69 2.0 0.167
14.1 LOS B
0.5
3.4
0.67
0.81 47.6
North: South Western Hwy
7 L2 20 6.0 0.011
5.6 LOS A
0.0
0.0
0.00
0.57 53.4
8 T1 478 6.0 0.255
0.0 LOS A
0.0
0.0
0.00
0.00 59.9
Approach 498 6.0 0.255
0.3 NA
0.0
0.0
0.00
0.02 59.6
All Vehicles 1402 5.8 0.419
1.0 NA
0.5
3.4
0.05
0.05 58.9
Figure 13: AM Existing Peak Hour Results
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Movement Performance - Vehicles
Mov ID
OD Mov
Demand Flows Deg. Satn
Average Delay
Level of Service
95% Back of Queue Prop. Queued
Effective Stop Rate
Average Speed Total HV Vehicles
Distance
veh/h % v/c
sec
veh
m
per veh km/h
South: South Western Hwy
2 T1 822 6.0 0.445
0.5 LOS A
0.9
6.8
0.09
0.02 59.1
3 R2 32 6.0 0.445
11.2 LOS B
0.9
6.8
0.09
0.02 56.9
Approach 854 6.0 0.445
0.9 NA
0.9
6.8
0.09
0.02 59.0
East: Walters Road
4 L2 51 2.0 0.051
7.5 LOS A
0.2
1.4
0.47
0.67 52.1
6 R2 69 2.0 0.323
23.0 LOS C
1.0
7.2
0.87
0.98 42.7
Approach 120 2.0 0.323
16.5 LOS C
1.0
7.2
0.70
0.85 46.2
North: South Western Hwy
7 L2 52 6.0 0.029
5.6 LOS A
0.0
0.0
0.00
0.57 53.4
8 T1 478 6.0 0.255
0.0 LOS A
0.0
0.0
0.00
0.00 59.9
Approach 529 6.0 0.255
0.6 NA
0.0
0.0
0.00
0.06 59.2
All Vehicles 1503 5.7 0.445
2.0 NA
1.0
7.2
0.11
0.10 57.8
Figure 14: AM Predicted Peak Hour Results
Figure 15: PM Volumes
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Movement Performance - Vehicles
Mov ID
OD Mov
Demand Flows Deg. Satn
Average Delay
Level of Service
95% Back of Queue Prop. Queued
Effective Stop Rate
Average Speed Total HV Vehicles
Distance
veh/h % v/c
sec
veh
m
per veh km/h
South: South Western Hwy
2 T1 705 6.0 0.426
2.0 LOS A
1.9
13.8
0.20
0.03 57.4
3 R2 35 6.0 0.426
18.0 LOS C
1.9
13.8
0.20
0.03 55.4
Approach 740 6.0 0.426
2.7 NA
1.9
13.8
0.20
0.03 57.3
East: Walters Road
4 L2 24 2.0 0.040
10.1 LOS B
0.1
1.0
0.63
0.81 50.2
6 R2 24 2.0 0.151
25.8 LOS D
0.4
2.9
0.88
0.95 41.3
Approach 48 2.0 0.151
17.9 LOS C
0.4
2.9
0.76
0.88 45.3
North: South Western Hwy
7 L2 52 6.0 0.029
5.6 LOS A
0.0
0.0
0.00
0.57 53.4
8 T1 803 6.0 0.428
0.1 LOS A
0.0
0.0
0.00
0.00 59.9
Approach 855 6.0 0.428
0.4 NA
0.0
0.0
0.00
0.03 59.4
All Vehicles 1643 5.9 0.428
2.0 NA
1.9
13.8
0.11
0.06 58.0
Figure 16: PM Existing Peak Hour Results
Movement Performance - Vehicles
Mov ID
OD Mov
Demand Flows Deg. Satn
Average Delay
Level of Service
95% Back of Queue Prop. Queued
Effective Stop Rate
Average Speed Total HV Vehicles
Distance
veh/h % v/c
sec
veh
m
per veh km/h
South: South Western Hwy
2 T1 705 6.0 0.471
3.2 LOS A
3.0
22.0
0.30
0.05 56.1
3 R2 52 6.0 0.471
19.1 LOS C
3.0
22.0
0.30
0.05 54.1
Approach 757 6.0 0.471
4.2 NA
3.0
22.0
0.30
0.05 56.0
East: Walters Road
4 L2 41 2.0 0.068
10.2 LOS B
0.2
1.7
0.64
0.84 50.1
6 R2 56 2.0 0.364
31.3 LOS D
1.1
7.8
0.91
1.00 38.9
Approach 97 2.0 0.364
22.4 LOS C
1.1
7.8
0.80
0.94 43.0
North: South Western Hwy
7 L2 79 6.0 0.044
5.6 LOS A
0.0
0.0
0.00
0.57 53.4
8 T1 803 6.0 0.428
0.1 LOS A
0.0
0.0
0.00
0.00 59.9
Approach 882 6.0 0.428
0.6 NA
0.0
0.0
0.00
0.05 59.2
All Vehicles 1736 5.8 0.471
3.4 NA
3.0
22.0
0.18
0.10 56.6
Figure 17: PM Predicted Peak Hour Results
As shown, the intersection is predicted to operate at a satisfactory level during both peak periods with relatively
minor increases in delay and queueing compared to the existing operation.
It is noted that Tonkin Highway is planned for extension from Thomas Road through to South Western Highway,
south of Mundijong. The extension will be a four-lane dual carriageway with intersection upgrades at Thomas
Road, Orton Road, Mundijong Road and South Western Highway. The project is currently in planning and
construction is estimated to be completed in late 2023. It is likely that some of the existing traffic along South
Western Highway will transfer to Tonkin Highway which would increase the capacity of South Western Highway.
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6. Public Transport Access
The following bus services are currently available within reasonable walking distance from the site:
Transperth Bus Route 251 operating on a route between Armadale Station and Clondyke Drive.
Transperth Bus Route 252 operating on a route between Armadale Station and Whitby Street.
Transperth Bus Route 253 operating on a route between Armadale High School and Kingsbury Drive.
The site is also about 300 metres walking distance to bus stops on South Western Highway as shown in Figure
18. The existing service is considered adequate to meet the likely public transport demand of the proposed
development.
Figure 18: Public Transport
7. Pedestrian and Cyclist Access
There is an existing path along the south side of Walters Road which connects to another path along the
western side of South Western Highway. The structure plan for the site and surrounding area proposes a new
shared path along the north side of Walters Road. Ultimately, a footpath connection should be provided between
the site and this future path to enhance accessibility for pedestrians.
No formal cycling facilities are provided; however given the nature of the intended land use cycling demand is
expected to be low.
Existing facilities are considered to be adequate for now and no upgrades are warranted.
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8. Site Specific and Safety Issues
8.1. Crash History
The crash history for the intersection of South Western Highway and Walters Road within the five-year period
ending December 2018 was sourced from the MRWA Reporting Centre and this indicated that a total of 6
crashes were reported. Of these, 3 were rear end crashes, 1 was a right angle crash, 1 was a right turn through
crash and the nature of 1 crash was unknown. 5 crashes resulted in property damage only while 1 required
medical treatment.
The number of recorded crashes is considered to be relatively low for the volume of traffic on the adjacent roads
and do not suggest any particular safety issue with the existing road layout. The volume of traffic expected to be
generated by the development is low and not considered to increase the risk of crashes above acceptable
levels.
9. Conclusions
A transport assessment of the proposed child care centre to be located at 2 Walters Road in Byford has
concluded the following:
There is adequate capacity in the existing road network to accommodate the expected development
traffic.
The proposed car parking supply satisfies the minimum requirements as outlined by the Shire of
Serpentine Jarrahdale’s Town Planning Scheme.
The parking bay dimensions comply with the requirements of Australian Standard AS2890.1.
There is adequate sight distance from the proposed crossover towards the east and west.
The existing available public transport service is considered adequate to meet the likely public
transport demand of the development.
Pedestrian entry will be from Walters Road and the existing path network surrounding the site is
considered to be adequate.
A review of the crash history adjacent to the site did not indicate any safety issues with the road
network and the additional traffic generated by the proposed development is not likely to increase the
risk of crashes.
Lloyd George Acoustics
PO Box 717 Hillarys WA 6923
T: 9401 7770 www.lgacoustics.com.au
Environmental & Transportation
Noise Assessment Proposed Child Care Centre
2 Walters Road, Byford Reference: 19085134-01
Prepared for: IQ Construction
Report: 19085134-01
Lloyd George Acoustics Pty Ltd ABN: 79 125 812 544
PO Box 717 Hillarys WA 6923
www.lgacoustics.com.au T: 9401 7770
Contacts Daniel Lloyd Terry George Matt Moyle Olivier Mallié Ben Hillion
E:
M:
0439 032 844
0400 414 197
0412 611 330
0439 987 455
0457 095 555
Date: Rev Description Prepared By Verified
19-Nov-19 0 Issued to Client Benjamin Hillion Matt Moyle
This report has been prepared in accordance with the scope of services described in the contract or
agreement between Lloyd George Acoustics Pty Ltd and the Client. The report relies upon data, surveys,
measurements and results taken at or under the particular times and conditions specified herein. Any
findings, conclusions or recommendations only apply to the aforementioned circumstances and no greater
reliance should be assumed or drawn by the Client. Furthermore, the report has been prepared solely for
use by the Client, and Lloyd George Acoustics Pty Ltd accepts no responsibility for its use by other parties.
Lloyd George Acoustics
Table of Contents 1 INTRODUCTION ______________________________________________________________ 1 2 CRITERIA ____________________________________________________________________ 2
2.1 Road Traffic Noise ____________________________________________________________ 2 2.2 Environmental Noise __________________________________________________________ 4
3 METHODOLOGY ______________________________________________________________ 7 3.1 Attended Site Measurements ___________________________________________________ 7
4 NOISE MODELLING ____________________________________________________________ 8 4.1 Road Traffic Noise ____________________________________________________________ 8
4.1.1 Ground Topography ________________________________________________________ 9 4.1.2 Traffic Data _______________________________________________________________ 9 4.1.3 Ground Attenuation _______________________________________________________ 10
4.2 Environmental Noise _________________________________________________________ 10 4.2.1 Meteorological Information _________________________________________________ 10 4.2.2 Topographical Data _______________________________________________________ 11 4.2.3 Buildings and Receivers ____________________________________________________ 11 4.2.4 Ground Absorption _______________________________________________________ 11 4.2.5 Source Sound Levels_______________________________________________________ 11
5 RESULTS ___________________________________________________________________ 13 5.1 Road Traffic Noise ___________________________________________________________ 13
5.1.1 Noise Calculation _________________________________________________________ 13 5.2 Environmental Noise _________________________________________________________ 15
5.2.1 Mechanical Plant _________________________________________________________ 15 5.2.2 Outdoor Child Play ________________________________________________________ 19 5.2.3 Car Door Closing __________________________________________________________ 22
6 ASSESSMENT _______________________________________________________________ 24 6.1 Road Traffic Noise ___________________________________________________________ 24 6.2 Environmental Noise _________________________________________________________ 25
6.2.1 Mechanical Plant _________________________________________________________ 25 6.2.2 Outdoor Child Play ________________________________________________________ 25 6.2.3 LA10 Compliance __________________________________________________________ 25 6.2.4 LA1 Compliance ___________________________________________________________ 25
6.3 Car Doors __________________________________________________________________ 26 7 RECOMMENDATIONS _________________________________________________________ 26
7.1 Road Traffic Noise ___________________________________________________________ 26 7.2 Environmental Noise _________________________________________________________ 27
Lloyd George Acoustics
List of Tables Table 2-1 Noise Targets for Noise-Sensitive Land-Use _______________________________________ 3
Table 2-2 Adjustments Where Characteristics Cannot Be Removed ____________________________ 4
Table 2-3 Baseline Assigned Noise Levels _________________________________________________ 5
Table 2-4 Influencing Factor Calculation _________________________________________________ 5
Table 2-5 Assigned Noise Levels ________________________________________________________ 6
Table 4-1 Noise Relationship Between Different Road Surfaces _______________________________ 9
Table 4-2 Traffic Information Used in the Modelling for South Western Highway ________________ 10
Table 4-3 Modelling Meteorological Conditions (ISO 9613) __________________________________ 10
Table 4-4 Source Sound Power Levels, dB _______________________________________________ 12
Table 5-1 Predicted Noise Levels of Mechanical Plant, dB LA10 _______________________________ 15
Table 5-2 Predicted Noise Levels of Child Play ____________________________________________ 19
Table 5-3 Predicted Car Doors Closing Noise Levels, dB LAmax ________________________________ 22
Table 6-1 Predicted Future LAeq(Day) Noise Levels __________________________________________ 24
List of Figures Figure 1-1 Project Locality (Source: City of Serpentine Jarrahdale) _____________________________ 2
Figure 3-1 Photograph of Sound Level Meter ______________________________________________ 7
Figure 3-2 Location of Sound Level Meter ________________________________________________ 8
Figure 4-1 Image of Noise Model _______________________________________________________ 9
Figure 4-2 South Elevation of 3D Noise Model ____________________________________________ 11
Figure 5-1 Determined Daily Noise Pattern – South Western Highway _________________________ 13
Figure 5-2 Spectral Content of Road Traffic ______________________________________________ 14
Figure 5-3 Daytime Mechanical Plant Noise Contours – LA10 _________________________________ 17
Figure 5-4 Night-time Mechanical Plant Noise Contours – LA10 _______________________________ 18
Figure 5-5 Scenario 1 (75 Kindy Children) Noise Contours - LA1 _______________________________ 20
Figure 5-6 Scenario 2 (33 Kindy Children) Noise Contours - LA10 ______________________________ 21
Figure 5-7 Car Doors Closing Noise Contours – dB LAmax _____________________________________ 23
Figure 7-1 Extent of Recommended 2.1 metre High Noise Barrier ____________________________ 27
Appendices A Development Drawings
B Land Zoning Map
C Terminology
Lloyd George Acoustics
Reference: 19085134-01 Page 1
1 INTRODUCTION Lloyd George Acoustics have been commissioned by IQ Construction to undertake an acoustic assessment at Lot 13 (No.2) Walters Road which has been proposed to be redeveloped as a child care centre.
The redevelopment is understood to include the following aspects:
• Lot will be cleared and incorporate a new childcare building,
• One main outdoor play area to the north, and
• A 15-bay car park on the eastern side, with entry from Walters Road.
The proposed redevelopment is bound by residential premises to the north and east and by Walters Road to the south. Directly to the west of Lot 13 is an open public space. On the other side of South Western Highway to the west are a number of commercial buildings. On the other side of Walters Road to the south are residential buildings.
Surrounding residential developments in direct proximity to the proposed development are single storey (except No.22 Walters Road which is double storey).
The proposed childcare centre will accommodate up to 75 children and for the purpose of this assessment, the following age group distribution was assumed:
• Kindy (3 years and over), 75 children overall – in this assessment it was assumed there can be up to 75 children in the outdoor play area during changeover and up to 33 of them at other times.
The proposed hours of operation are 6.30am to 6.30pm Monday to Saturday. As such, it is noted that staff and patrons can arrive before 7.00am.
This report assesses noise emissions from child play, mechanical plant (AC plant and extraction fans) and car doors closing at the proposed site, against the Environmental Protection (Noise) Regulations 1997.
The proposed childcare development is located within 63 metres to the edge of South Western Highway – refer Figure 1.1. A transportation noise assessment in accordance with State Planning Policy 5.4 (SPP5.4) is required to quantify and control noise ingress into the property.
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Figure 1-1 Project Locality (Source: City of Serpentine Jarrahdale)
The development plans are provided in Appendix A.
Land zoning around the proposed site is shown in Appendix B.
Appendix C contains a description of some of the terminology used throughout this report.
2 CRITERIA 2.1 Road Traffic Noise
The criteria relevant to this assessment is provided in State Planning Policy No. 5.4 Road and Rail Noise (hereafter referred to as SPP 5.4) produced by the Western Australian Planning Commission (WAPC). The objectives of SPP 5.4 are to:
• Protect the community from unreasonable levels of transport noise;
• Protect strategic and other significant freight transport corridors from incompatible urban encroachment;
• Ensure transport infrastructure and land-use can mutually exist within urban corridors;
• Ensure that noise impacts are addressed as early as possible in the planning process; and
• Encourage best practice noise mitigation design and construction standards
Table 2-1 sets out noise targets that are to be achieved by proposals under which SPP 5.4 applies. Where the targets are exceeded, an assessment is required to determine the likely level of transport noise and management/mitigation required.
Project Site
South Western Highway
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Reference: 19085134-01 Page 3
For childcare buildings near major roads, “acceptable indoor noise levels” are taken to be 50 dB or less LAeq(Day) in recreation/foyer/staff areas and 40 dB LAeq(Day) or less in sleeping rooms/offices.
Table 2-1 Noise Targets for Noise-Sensitive Land-Use
Outdoor Noise Target Indoor Noise Target
55 dB LAeq(Day) 50 dB LAeq(Night) 50 dB LAeq(Day)
(Recreation/foyer/staff Areas)
40 dB LAeq(Night)
(sleeping rooms/ offices)
Notes:
• Day period is from 6am to 10pm and night period from 10pm to 6am.
• The outdoor noise target is to be measured at 1-metre from the most exposed, habitable1 façade of the noise sensitive
building.
• For all noise-sensitive land-use and/or development, indoor noise targets for other room usages may be reasonable drawn
from Table 1 of Australian Standard/New Zealand Standard AS/NZS 2107:2016 Acoustics – Recommended design sound levels
and reverberation times for building interiors (as amended) for each relevant time period.
• Outdoor targets are to be met at all outdoor areas as far as is reasonable and practicable to do so using the various noise
mitigation measures outlined in the Guidelines.
The application of SPP 5.4 is to consider anticipated traffic volumes for the next 20 years from when the noise assessment is undertaken.
In the application of the noise targets, the objective is to achieve:
• indoor noise levels specified in Table 2-1 in noise-sensitive areas (e.g. play/sleep rooms); and
• a reasonable degree of acoustic amenity for outdoor living areas on each residential lot. For non-residential noise-sensitive developments, for example schools and childcare centres, the design of outdoor areas should take into consideration the noise target.
It is recognised that in some instances, it may not be reasonable and/or practicable to meet the outdoor noise targets. Where transport noise is above the noise targets, measures are expected to be implemented that balance reasonable and practicable considerations with the need to achieve acceptable noise protection outcomes.
1 A habitable room is defined in State Planning Policy 3.1 as a room used for normal domestic activities that includes a bedroom, living room, lounge room, music room, sitting room, television room, kitchen, dining room, sewing room, study, playroom, sunroom, gymnasium, fully enclosed swimming pool or patio.
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2.2 Environmental Noise
Environmental noise in Western Australia is governed by the Environmental Protection Act 1986, through the Environmental Protection (Noise) Regulations 1997 (the Regulations).
Regulation 7 defines the prescribed standard for noise emissions as follows:
“7. (1) Noise emitted from any premises or public place when received at other premises –
(a) Must not cause or significantly contribute to, a level of noise which exceeds the assigned level in respect of noise received at premises of that kind; and
(b) Must be free of –
i. tonality;
ii. impulsiveness; and
iii. modulation,
when assessed under regulation 9”
A “…noise emission is taken to significantly contribute to a level of noise if the noise emission … exceeds a value which is 5 dB below the assigned level…”
Tonality, impulsiveness and modulation are defined in Regulation 9. Noise is to be taken to be free of these characteristics if:
(a) The characteristics cannot be reasonably and practicably removed by techniques other than attenuating the overall level of noise emission; and
(b) The noise emission complies with the standard prescribed under regulation 7 after the adjustments of Table 2-2 are made to the noise emission as measured at the point of reception.
Table 2-2 Adjustments Where Characteristics Cannot Be Removed
Where Noise Emission is Not Music Where Noise Emission is Music
Tonality Modulation Impulsiveness No Impulsiveness Impulsiveness
+ 5 dB + 5 dB + 10 dB + 10 dB + 15 dB
Note: The above are cumulative to a maximum of 15dB.
The baseline assigned levels (prescribed standards) are specified in Regulation 8 and are shown in Table 2-3.
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Table 2-3 Baseline Assigned Noise Levels
Premises Receiving Noise Time Of Day
Assigned Level (dB)
LA10 LA1 LAmax
Noise sensitive premises: highly sensitive area1(a)
0700 to 1900 hours Monday to Saturday (Day)
45 + influencing
factor
55 + influencing
factor
65 + influencing
factor
0900 to 1900 hours Sunday and public holidays (Sunday)
40 + influencing
factor
50 + influencing
factor
65 + influencing
factor
1900 to 2200 hours all days (Evening) 40 +
influencing factor
50 + influencing
factor
55 + influencing
factor
2200 hours on any day to 0700 hours Monday to Saturday and 0900 hours Sunday and public holidays (Night)
35 + influencing
factor
45 + influencing
factor
55 + influencing
factor
Noise sensitive premises: any area other than highly sensitive area1(b)
All hours 60 75 80
Commercial All hours 60 75 80
1. highly sensitive area means that area (if any) of noise sensitive premises comprising — (a) a building, or a part of a building, on the premises that is used for a noise sensitive purpose; and (b) any other part of the premises within 15 metres of that building or that part of the building.
The influencing factor, applicable at the noise sensitive premises has been calculated as 6.6 dB – rounded up to 7 dB, as shown in Table 2-4 based on surrounding land use (refer Appendix B). The transport factor has been calculated as 6 dB, due to South Western Highway being considered a major road (18,234 vehicles per day – Reference Main Roads WA traffic count 2017 at location 8299) and being within 100 metres of the residences.
Table 2-4 Influencing Factor Calculation
Description Within 100 metre Radius Within 450 metre Radius Total
Industrial Land 0 % 0 % 0.0 dB
Commercial Land 7.9 % 5.3 % 0.6 dB
Transport Factor 6.0 dB
Total 6.6 dB
Table 2-5 shows the assigned noise levels including the influencing factor and transport factor at the receiving locations.
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Table 2-5 Assigned Noise Levels
Premises Receiving Noise Time Of Day
Assigned Level (dB)
LA10 LA1 LAmax
Noise sensitive premises: highly sensitive area1(a)
0700 to 1900 hours Monday to Saturday (Day) 52 62 72
0900 to 1900 hours Sunday and public holidays (Sunday) 47 57 72
1900 to 2200 hours all days (Evening) 47 57 62
2200 hours on any day to 0700 hours Monday to Saturday and 0900 hours Sunday and public holidays (Night)
42 52 62
Noise sensitive premises: any area other than highly sensitive area1(b)
All hours 60 75 80
Commercial All hours 60 75 80
1. highly sensitive area means that area (if any) of noise sensitive premises comprising — (a) a building, or a part of a building, on the premises that is used for a noise sensitive purpose; and (b) any other part of the premises within 15 metres of that building or that part of the building.
It must be noted the assigned noise levels above apply outside the receiving premises and at a point at least 3 metres away from any substantial reflecting surfaces. Where this was not possible to be achieved due to the close proximity of existing buildings and/or fences, the noise emissions were assessed at a point within 1 metre from building façades and a -2 dB adjustment was made to the predicted noise levels to account for reflected noise.
It is noted the assigned noise levels are statistical levels and therefore the period over which they are determined is important. The Regulations define the Representative Assessment Period (RAP) as a period of time of not less than 15 minutes, and not exceeding 4 hours, which is 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. An inspector or authorised person is a person appointed under Sections 87 & 88 of the Environmental Protection Act 1986 and include Local Government Environmental Health Officers and Officers from the Department of Environment Regulation. Acoustic consultants or other environmental consultants are not appointed as an inspector or authorised person. Therefore, whilst this assessment is based on a 4 hour RAP, which is assumed to be appropriate given the nature of the operations, this is to be used for guidance only.
Under Regulation 3 (1), nothing in the Regulations applies to the following noise emissions –
(a) noise emissions from the propulsion and braking systems of motor vehicles operating on a road.
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3 METHODOLOGY 3.1 Attended Site Measurements
Noise monitoring was undertaken on the site using a Rion NA-28 Sound Level Meter (S/N: 1270693), as shown in Figure 3-1 and Figure 3-2. The meter was located near the front of Lot 13. This location has line-of-sight to South Western Highway and at approximately 53 metres to the road’s edge and approximately 15 metres from the proposed building’s front façade. The location was chosen to enable calibration of the road traffic noise model (noise measurements at close proximity to existing No.2 Walters Road building were unfavourable due to barking dogs which would have undermined the noise measurements).
The measurements occurred on 5 November 2019, between 15.00 and 16.00 hours, coinciding with peak traffic flows for South Western Highway.
The measured value is then used to calibrate the noise model against the hourly traffic volumes obtained from the latest MRWA traffic count. This enables the day and night noise levels to be calculated based on traffic volumes throughout a 24-hour period.
Figure 3-1 Photograph of Sound Level Meter
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Figure 3-2 Location of Sound Level Meter
All equipment holds current laboratory certificates of calibration that are available upon request. The equipment was also field calibrated before and after and found to be within +/- 0.5 dB.
The microphone was fitted with a standard wind screen.
The microphone was 1.4 metres above ground level and at more than 3.0 metres from reflecting façades (other than the ground plane).
4 NOISE MODELLING 4.1 Road Traffic Noise
The computer programme SoundPLAN 8.1 was utilised incorporating the Calculation of Road Traffic Noise (CoRTN) algorithms, modified to reflect Australian conditions. The modifications included the following:
• Vehicles were separated into heavy (Austroads Class 3 upwards) and non-heavy (Austroads Classes 1 & 2) with non-heavy vehicles having a source height of 0.5 metres above road level and heavy vehicles having two sources, at heights of 1.5 metres and 3.6 metres above road level, to represent the engine and exhaust respectively. By splitting the noise source into three, allows for less barrier attenuation for high level sources where barriers are to be considered.
• Note that a -8.0 dB correction is applied to the exhaust and -0.8 dB to the engine (based on Transportation Noise Reference Book, Paul Nelson, 1987), so as to provide consistent results with the CoRTN algorithms for the no barrier scenario;
• Adjustments of -0.8 dB and -1.7 dB have been applied to the predicted levels for the ‘free-field’ and ‘at façade’ cases respectively, based on the findings of An Evaluation of the U.K. DoE Traffic Noise Prediction; Australian Road Research Board, Report 122 ARRB – NAASRA Planning Group (March 1983).
Sound Level Meter
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Reference: 19085134-01 Page 9
Predictions are made at heights of 1.4 m above ground floor level for single storey houses and 4.2 m for double storey houses. The noise is predicted at 1.0 metre from an assumed building façade resulting in a + 2.5 dB correction due to reflected noise.
Various input data are included in the modelling such as ground topography, road design, traffic volumes etc. These model inputs are discussed in the following sections.
4.1.1 Ground Topography Topographical data was based on that publicly available from Google Earth. This was combined with the proposed building plans to create a three dimensional noise model, as shown in Figure 4-1.
Figure 4-1 Image of Noise Model
4.1.2 Traffic Data
Traffic data includes:
• Road Surface – The noise relationship between different road surface types is shown below in Table 4-1.
Table 4-1 Noise Relationship Between Different Road Surfaces
Road Surfaces
Chip Seal Asphalt
14mm 10mm 5mm Dense Graded Novachip Stone
Mastic Open
Graded
+3.5 dB +2.5 dB +1.5 dB 0.0 dB -0.2 dB -1.5 dB -2.5 dB
The existing and future road surface was dense graded asphalt and is assumed to remain unchanged.
• Vehicle Speed – The existing and future posted speeds are assumed to be 60 km/hr on South Western Highway.
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• Traffic Volumes – Existing (2016) and forecast (2041) traffic volumes were requested from Main Roads WA (Clare Yu, Traffic Modelling Analyst, Reference: #41323). A validation plot was also provided allowing the Main Roads WA traffic volume model to be calibrated against actual counts. Table 4-2 provides the traffic volume input data in the model.
Table 4-2 Traffic Information Used in the Modelling for South Western Highway
Parameter
Scenario
Existing - 2016 Future - 2041
Northbound Southbound Northbound Southbound
24 Hour Volume 8,600 8,300 17,000 16,000
% Heavy 10 10 3 3
4.1.3 Ground Attenuation
Due to the semi-rural nature of the location and its surrounds, the ground attenuation has been assumed to be 0.0 (0%) for the road and 0.8 (80%) elsewhere. Note 0.0 represents hard reflective surfaces such as water and 1.00 represents absorptive surfaces such as grass.
4.2 Environmental Noise
4.2.1 Meteorological Information
Meteorological information utilised is provided in Table 4-3 and is considered to represent worst-case conditions for noise propagation. At wind speeds greater than those shown, sound propagation may be further enhanced, however background noise from the wind itself and from local vegetation is likely to be elevated and dominate the ambient noise levels.
Table 4-3 Modelling Meteorological Conditions (ISO 9613)
Parameter Night (1900-0700) Day (0700-1900)
Temperature (oC) 15 20
Humidity (%) 50 50
Wind Speed (m/s) Up to 5 m/s Up to 5 m/s
Wind Direction* All All
* Note that the modelling package used allows for all wind directions to be modelled simultaneously.
It is generally considered that compliance with the assigned noise levels needs to be demonstrated for 98% of the time, during the day and night periods, for the month of the year in which the worst-case weather conditions prevail. In most cases, the above conditions occur for more than 2% of the time and therefore must be satisfied.
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Reference: 19085134-01 Page 11
4.2.2 Topographical Data
Topographical data was based on that publicly available from Google Earth in the form of spot heights. It is noted the topography is relatively flat, with no significant differences in elevations between the proposed site and the surrounding premises.
4.2.3 Buildings and Receivers
Surrounding existing buildings were included in the noise model as these can provide noise shielding as well as reflection paths.
Single storey buildings were modelled as 3.5 metres high, while double storey buildings were modelled as 7 metres high. Receivers were located 1.4 metres above ground level (AGL) and floor level.
Figure 4-2 shows a view of the 3D model based on the information above in relation to topography and building and fences height.
Figure 4-2 South Elevation of 3D Noise Model
4.2.4 Ground Absorption
Ground absorption varies from a value of 0 to 1, with 0 being for an acoustically reflective ground (e.g. asphalt, concrete) and 1 for acoustically absorbent ground (e.g. grass/sand). In this instance, a value of 0.8 has been used for built up areas as they include extensive outdoor grassed areas.
4.2.5 Source Sound Levels
The sound power levels used in the modelling are provided in Table 4-4.
Car Park
Child play Area
No.770
AC Plant
No.14
No.10
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Reference: 19085134-01 Page 12
Table 4-4 Source Sound Power Levels, dB
Description Octave Band Centre Frequency (Hz) Overall
dB(A) 63 125 250 500 1k 2k 4k 8k
Child Play Kindy (75 kids), L1 60 69 79 86 92 91 84 76 96
Child Play Kindy (33 kids), L10 56 65 75 82 88 87 80 72 92
Outdoor Condensing Unit1, (18 kW) 77 79 75 73 67 66 58 49 74
Toilet exhaust fans2 71 64 61 64 62 60 57 51 67
Kitchen exhaust fan3 70 76 77 69 71 66 64 51 75
Closing Car Door, Lmax 71 74 77 81 80 78 72 61 84
Notes: 1. 2x outdoor AC condenser units were modelled in total. 2. 5x toilet exhaust fans were modelled in total 3. 1x kitchen exhaust fan was modelled in total
The following is noted in relation to the source levels above:
• Child Play source levels represent the group of children playing outside at the same time. It is noted that based on observations and measurements, the noise levels tend to increase with the children's age and therefore Kindy children (3 years and above) are considered noisier than Pre-Kindy children (2-3 years). Outdoor child play was modelled as area sources at a specific height to reflect average height relevant to the age group as follows:
o Kindy - 1.0 metre above ground plane; and
o Whilst the premises is open prior to 7.00am, it is assumed there would be no outdoor play until after 7.00am.
o The changeover is assumed to be less than 24 minutes in total and is assessable against the LA1 criteria
o The outdoor play is assumed to feature up to 33 children (outside changeover) and last more than 24 minutes and is therefore assessable against the LA10 criteria.
• Based on similar projects, two (2x) outdoor AC units were assumed to be required for the building. Each was modelled as a point source located 1.2 metres above the roof level at a point corresponding to the centre of the central corridor. The AC units are assumed to be operating at night-time (prior to 7.00am); as mechanical noise is continuous in nature and AC/fans can be running hours at times mechanical plant noise is assessable against the LA10 criteria
• Other mechanical plant includes five (5x) toilet exhaust fans and one kitchen exhaust fan. All were modelled as point sources approximately 0.5 metre above roof level, and above the area serviced. The kitchen exhaust fan (1x) is assumed to only operate after 7.00am; and
• Car doors closing were modelled as point sources at 1.0 m above ground level. Since noise from a car door closing is a short term event, only the LAmax level is applicable but can occur prior to 7.00am.
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Reference: 19085134-01 Page 13
5 RESULTS 5.1 Road Traffic Noise
5.1.1 Noise Calculation
As discussed in Section 3.1, the results of the hourly noise monitoring were extrapolated to LAeq(Day) and LAeq(Night) values based on the hourly traffic volume information and noise modelling.
The measured LAeq,1hour between 15.00 and 16.00 hours at the sound level meter location was measured as 62.1 dB. Taking into account the 15 metres between measurement location and proposed building façade, the freefield LAeq(Day) and LAeq(Night) values were calculated as 60.4 dB LAeq(Day) and 51.6 dB LAeq(Night) at measurement location.
Figure 5-1 demonstrates how the noise levels vary throughout a typical day alongside the hourly traffic volumes.
Figure 5-1 Determined Daily Noise Pattern – South Western Highway
Spectral analysis was also undertaken during the measurements with the octave band analysis shown in Figure 5-2.
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Reference: 19085134-01 Page 14
Figure 5-2 Spectral Content of Road Traffic
On this basis, the LAeq(day) and LAeq(Night) at the proposed building location are calculated to be 59.6 dB and 50.8 dB respectively in free-field conditions, or 62.1 dB LAeq(Day) and 53.3 dB LAeq(Night) at an assumed building façade. As there is greater than 5 dB differential between the day and night noise levels, it is the daytime noise levels that will dictate compliance.
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Reference: 19085134-01 Page 15
5.2 Environmental Noise
5.2.1 Mechanical Plant
Mechanical plant was considered to consist of AC plant and extraction fans for the kitchen and toilets. At this stage, no details in relation to the mechanical plant are available and therefore the location, number of, and size/capacity of the AC units and fans used in this assessment are based on similar projects.
During the daytime, it is assumed that all plant could be operating simultaneously and at full capacity e.g. hot summer day. As the childcare centre would open from 6.30am, the AC plant and toilet exhaust fans were assumed to operate at from this time, with the Kitchen exhaust fan assumed to operate after 7.00am only. The predicted daytime and night-time mechanical plant noise levels are presented in Table 5-1.
It can be seen that at all receivers, mechanical plant noise is predicted to be no more than 37 dB(A). The daytime and night-time predicted noise levels are also shown on Figure 5-3 and Figure 5-4 respectively.
Table 5-1 Predicted Noise Levels of Mechanical Plant, dB LA10
Receiver Floor Mechanical Plant
Daytime (All plant) Night-time (AC + TEF)
3 Walters Road Ground 30 28
5A Walters Road Ground 33 31
7 Walters Road Ground 35 33
9 Walters Road Ground 33 30
10 Walters Road Ground 40 36
11 Walters Road Ground 33 31
18 Walters Road Ground 23 21
22 Lionel Street Ground 32 30
19 Walters Road Ground 24 23
22 Walters Road Ground 26 24
22 Walters Road First 25 24
24 Walters Road Ground 20 19
25 Walters Road Ground 22 21
764 South Western Highway Ground 24 23
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Reference: 19085134-01 Page 16
Receiver Floor Mechanical Plant
Daytime (All plant) Night-time (AC + TEF)
768 South Western Highway Ground 27 26
770 South Western Highway Ground 32 31
777 South Western Highway Ground 25 24
Lloyd George AcousticsPO Box 717
HILLARYS WA 6923
(08) 9401 7770
Length Scale 1:20000 10 20 40 60 80
m
No. 2 Walters Road, Byford - Child Care Centre
Daytime - Mechanical Plant
Noise Level Contours
Ground Floor Level
SoundPlan v8.1
Figure 5-3
Signs and symbolsChild Care Centre
Point source
18 November 2019
Noise LevelsdB LA10
= 32
= 37
= 42
= 47
= 52
= 57
Lloyd George AcousticsPO Box 717
HILLARYS WA 6923
(08) 9401 7770
Length Scale 1:20000 10 20 40 60 80
m
No. 2 Walters Road, Byford - Child Care Centre
Night time - Mechanical Plant
Noise Level Contours
Ground Floor Level
SoundPlan v8.1
Figure 5-4
Signs and symbolsChild Care Centre
Point source
18 November 2019
Noise LevelsdB LA10
= 32
= 37
= 42
= 47
= 52
= 57
Lloyd George Acoustics
Reference: 19085134-01 Page 19
5.2.2 Outdoor Child Play
The childcare development will host up to 75 children. Kindy children were assumed to play in the main outdoor area (north side of building), with the children distributed evenly over the available space.
Noise levels were predicted for the following scenarios:
• Scenario 1 (LA1) – 75 kindy children (3 years and over) playing outside during ‘change over period’.
• Scenario 2 (LA10) - 33 kindy children (3 years and over) playing outside.
For all scenarios, the predicted noise levels are from child play only i.e. mechanical plant noise is not included. Table 5-2 presents the highest noise levels at each receiver. Figure 5-5 and Figure 5-6 also show the predicted noise levels as noise contour maps at ground level (1.5 metres AGL). Given the proposed location of the play area, receivers most impacted by outdoor child play are those located to the north and east of site.
Table 5-2 Predicted Noise Levels of Child Play
Receiver Floor
Scenario 1 Scenario 2
dB LA1 dB LA10
3 Walters Road Ground 44 40
5A Walters Road Ground 45 41
7 Walters Road Ground 39 35
9 Walters Road Ground 42 38
10 Walters Road Ground 55 51
11 Walters Road Ground 42 38
18 Walters Road Ground 38 34
22 Lionel Street Ground 35 31
19 Walters Road Ground 31 27
22 Walters Road Ground 36 32
22 Walters Road First 37 33
24 Walters Road Ground 35 31
25 Walters Road Ground 32 28
764 South Western Highway Ground 39 35
768 South Western Highway Ground 44 40
770 South Western Highway Ground 57 53
777 South Western Highway Ground 42 38
Lloyd George AcousticsPO Box 717
HILLARYS WA 6923
(08) 9401 7770
Length Scale 1:20000 10 20 40 60 80
m
No. 2 Walters Road, Byford - Child Care Centre
Scenario 1 - 75 Kindy Children in outdoor area
Noise Level Contours
Ground Floor Level
SoundPlan v8.1
Figure 5-5
Signs and symbolsChild Care Centre
Area source
18 November 2019
Noise LevelsdB LA1
= 32
= 37
= 42
= 47
= 52
= 57
Lloyd George AcousticsPO Box 717
HILLARYS WA 6923
(08) 9401 7770
Length Scale 1:20000 10 20 40 60 80
m
No. 2 Walters Road, Byford - Child Care Centre
Scenario 2 - 33 Kindy Children in outdoor area
Noise Level Contours
Ground Floor Level
SoundPlan v8.1
Figure 5-6
Signs and symbolsChild Care Centre
Area source
18 November 2019
Noise LevelsdB LA10
= 32
= 37
= 42
= 47
= 52
= 57
Lloyd George Acoustics
Reference: 19085134-01 Page 22
5.2.3 Car Door Closing
The model includes noise from car doors closing in the proposed parking bays on site. Table 5-3 presents the predicted noise levels from car doors closing. Figure 5-7 also shows the predicted noise levels as a noise contour map at ground level (1.5 metres AGL).
Given the layout of the proposed site and surrounding premises, individual receivers are affected by different car parking bays. However, noise from car doors closing is predicted to be no more than 51 dB, LAmax at all receivers.
Table 5-3 Predicted Car Doors Closing Noise Levels, dB LAmax
Receiver Floor Car Doors
3 Walters Road Ground 36
5A Walters Road Ground 41
7 Walters Road Ground 44
9 Walters Road Ground 42
10 Walters Road Ground 51
11 Walters Road Ground 41
18 Walters Road Ground 27
22 Lionel Street Ground 39
19 Walters Road Ground 31
22 Walters Road Ground 37
22 Walters Road First 31
24 Walters Road Ground 25
25 Walters Road Ground 27
764 South Western Highway Ground 31
768 South Western Highway Ground 28
770 South Western Highway Ground 44
777 South Western Highway Ground 29
Lloyd George AcousticsPO Box 717
HILLARYS WA 6923
(08) 9401 7770
Length Scale 1:20000 10 20 40 60 80
m
No. 2 Walters Road, Byford - Child Care Centre
Car Doors Closing
Noise Level Contours
Ground Floor Level
SoundPlan v8.1
Figure 5-7
Signs and symbolsChild Care Centre
Point source
18 November 2019
Noise LevelsdB LAmax
= 32
= 37
= 42
= 47
= 52
= 57
Lloyd George Acoustics
Reference: 19085134-01 Page 24
6 ASSESSMENT 6.1 Road Traffic Noise
The noise model was originally set-up for existing conditions. The predicted noise levels are then compared to the measured noise levels and the model calibrated. The noise model was then updated for future conditions including the proposed dwelling and future traffic volumes. It was found that the future noise level is 0.7 dB higher than existing levels. This is due to the number of vehicles using South Western Highway, which is set to approximately double by 2041, with the proportion of heavy vehicles to decrease overall from 10% to 3%, thus a lower number of heavy goods vehicles is forecast to use South Western Highway in 2041 compared to 2016.
Results of the noise modelling are presented in Table 6-1 and provides the predicted noise levels at 1-metre from the window/door of each occupied room façade of the development.
Table 6-1 Predicted Future LAeq(Day) Noise Levels
Room Floor Façade dB LAeq(Day)
AS 2107 Indoor Noise
Criteria
Foyer Ground 47 50
Kitchen Ground 48 50
Laundry Ground 58 50
Office 1 Ground 48 40
Room 1 Ground 63 40
Room 2 Ground 58 40
Room 3 Ground 48 40
Room 4 Ground 63 40
Room 5 Ground 63 40
Staff Area Ground 57 50
Shaded cells indicate noise levels are above the limit.
The target is predicted to be exceeded at some façades and therefore recommendations are provided in Section 7.1 so that AS2107 acceptable indoor noise levels can be achieved.
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Reference: 19085134-01 Page 25
6.2 Environmental Noise
6.2.1 Mechanical Plant
Mechanical plant could be considered tonal prior to 7.00am and therefore a +5 dB adjustment is to be made to the predicted night-time noise levels (refer Table 2-1).
The daytime assigned level is 52 dB LA10 and the night time assigned level is 42 dB LA10. Based on the predicted noise levels in Table 5-1, the worst-case adjusted noise level is 40 dB LA10 during the daytime (prior to 7.00am) and 41 dB LA10 during the night time. As such that compliance is expected at all receivers during all time periods.
It must be noted this assessment is based on assumptions in relation to the size, number and location of the AC units and exhaust fans. Therefore, mechanical plant noise is to be reviewed by a qualified acoustical consultant during detailed design, when plant selection and location becomes known. Based on the modelling carried out, the following is recommended in relation to mechanical plant:
• Consider locating all AC plant on the roof and the furthest away from any sensitive receiver. Additional noise mitigation measures such as local noise barriers may be required, and
• Exhaust fans to be located within the ceiling space and ducted to the roof. Roof cowls are then to be located furthest away from sensitive receivers, and
• Allow for silencers in the duct design of exhaust fans, and
• All plant to be mounted on suitable anti-vibration mounts.
6.2.2 Outdoor Child Play
Child play will only occur during the daytime, when the assigned noise levels are 52 dB LA10 and 62 dB LA1. Noise from child play is not considered to contain annoying characteristics within the definition of the Regulations. Therefore no adjustments are made to the predicted noise levels.
6.2.3 LA10 Compliance
Based on Table 5-2 the highest predicted LA10 noise level from child play exceeds the 52 dB LA10 assigned level by +1 dB at No. 770 South western Highway. All other locations are expected to comply with the assigned level. While the exceedence is noted to be marginal, recommendations are provided in Section 7.2 should strict compliance with assigned levels be required.
It is further noted that the mechanical plant noise levels are not significantly contributing to the overall noise levels, and therefore noise from child play can be considered in isolation. Mechanical plant noise is specifically addressed in Sections 5.2.1 and 6.2.1.
6.2.4 LA1 Compliance
The LA1 assigned level is applicable to noise events with a duration equal to 1% of the representative assessment period which is taken to be 4 hours during day time – i.e. a 24 minute duration in this particular case.
Lloyd George Acoustics
Reference: 19085134-01 Page 26
This is represented by Scenario 1, with up to 75 children conservatively assumed outside during a changeover. Based on Table 5-2 there are no locations where predicted LA1 noise level from child play exceeds the 62 dB LA1 assigned level.
6.3 Car Doors
Car doors closing noise are short duration events and were therefore assessed against the LAmax assigned noise level. Given the hours of operation, staff members or parents can arrive before 7.00am, and therefore the night-time assigned noise level of 62 dB LAmax is applicable.
Given the relative short source-to-receiver distances, car doors closing noise is considered to be impulsive within the definition of the Regulations. Therefore an adjustment of +10 dB is to be applied to the predicted noise levels (refer Table 2-2).
The highest predicted noise level is 51 dB LAmax at the receiver of No. 10 Walters Road, resulting in an assessable level of 61 dB LAmax. This complies with the night time assigned noise level of 62 dB LAmax.
7 RECOMMENDATIONS 7.1 Road Traffic Noise
The objectives of SPP 5.4 are to achieve:
• indoor noise levels specified in Table 2-1 in noise-sensitive areas; and
• a reasonable degree of acoustic amenity for outdoor living areas on each residential lot.
Where the outdoor noise targets of Table 2-1 are achieved, no further controls are necessary.
With reference to the predicted noise levels in Section 4.2, it is evident the noise target will be exceeded. As such, the following is recommended:
• Walls to be double leaf cavity brickwork;
• Roof to be Colorbond with Anticon Insulation between roof sheeting and purlins;
• Ceiling to Rooms 1 to 5 to be minimum 10mm thick plasterboard;
• Ceiling to other rooms to be mineral fibre tiles (plasterboard is also acceptable);
• Entry doors to Rooms 1 to 5 and Staff / Foyer / Office to be minimum Rw + Ctr 30 i.e. 40mm thick solid timber core door or commercial grade aluminium door fitted with full perimeter acoustic seals. Any glass inserts to be minimum 6mm thick;
• Windows and sliding doors to Rooms 1 to 5 and Staff /Foyer/Office to be minimum Rw + Ctr 26 i.e. 6mm glass with acoustic seals (toughened glass is acceptable);
• A title notification is required to indicate that the lot is exposed to transportation noise.
Notifications on title advise prospective purchasers of the potential for noise impacts from major transport corridors and help with managing expectations.
Lloyd George Acoustics
Reference: 19085134-01 Page 27
The Notification is to state as follows:
This lot is in the vicinity of a transport corridor and is affected, or may in the future be affected, by road and rail transport noise. Road and rail transport noise levels may rise or fall over time depending on the type and volume of traffic.
7.2 Environmental Noise
The noise modelling undertaken in this report predicts a +1 dB LA10 exceedence at No. 770 South Western Highway for Scenario 2 due to child play in outdoor area. Should strict compliance with the noise regulations be required a 2.1 metre high noise barrier is recommended (from play area finished level) with 14 kg/m2 minimum surface mass (e.g. 1.8mm steel or 9mm fibre cement) to be solid and continuous with extent as shown on Figure 7-1.
Figure 7-1 Extent of Recommended 2.1 metre High Noise Barrier
Extent of recommended 2.1 m noise barrier
Lloyd George Acoustics
Appendix A
Development Plans
50.726m²
56.18
Overt
56.06
56.95
57.15
57.34
55.90
56.32
56.74
56.95
57.18
57.40 57
.4957.61
57.73
56.00
56.00
56.28
56.18
56.56
56.60
57.03
56.92
57.13
57.28
57.54
57.55
57.54
57.53
57.67
57.68
57.74
57.83 57
.96
57.73
58.02
58.08
58.08
58.04
57.75
57.7257
.74
57.70
57.59
57.72
57.72
57.74
57.69
57.69
57.67
57.53
57.04
57.09
57.34
57.45
57.62
56.98
57.14
56.89
56.77
56.94
56.97
56.11 56
.26
56.55
Service Pole
Spring head nail
57.603
Spring head nail
58.032
Spring head nail
56.081
Floor level
57.77
57.65
57.68
57.67
57.67
57.71
57.70
57.64
57.36
57.29
57.27
57.27
57.32
57.41
57.43
57.58
57.58
57.58
57.66
57.81
57.79
57.88
56.87
56.04
56.44
56.23
56.27
56.62
56.72
56.85
56.88
56.90
57.37
57.73
55.94
55.79
55.95
55.86
55.65
55.86
56.98
56.65
56.56
56.76
56.81
56.40
56.44
56.17
56.26
56.34
56.26
55.93
55.90
56.00
57.47
57.58
57.5857
.58
57.58 57
.62 57.73
57.95
57.79
57.77
57.67
57.33
57.20
57.63
57.64
57.63
57.5257
.6057.53
57.62
57.59
57.61
57.61
57.68
56.87
57.85
58.08
57.79
57.71
56.65
56.2155
.89
55.79
55.72
55.73
55.84
56.06
56.18
56.72 57
.12 57.42
300 RCP
OUTLETHOUSE STORMWATER
SEWER PC
FOOTPATH
VACANT AREA
BRICK WALL
CARPORT
PATIO
GARDENGARDEN
GARDEN
PAVING
PAVING
SHED
TWIN SIDE WAL L
TWIN SIDE WAL L
TWIN SIDE WALL
SWIMMING POOL
3609m²
LOT 234
LOT 12
LOT 13
WALTERS ROAD
SOUTH
WESTERN
HIGHWAY
Footpath
Footpath
55.71
55.73
55.76
55.82
55.85
55.91
55.90
55.93
55.93
55.95
55.95
55.93
55.94
55.92
55.90
55.88
55.86
55.82
55.83
Edge of Gravel
57.62
57.62
57.58
57.66
57.71
57.67
57.71
57.84
57.84
Oval/S
ports Grou
nd
Brick Paving
Bri ck P av in
g
Brick
Paving
57.60 57
.63 57.63
57.65
57.66
57.67
57.63
57.63
57.58
57.62
57.62
57.64 57
.6557.64 57
.6457.64
57.64
57.64 57
.63
57.65
57.67
57.67
57.66 57
.65
57.64
57.67
57.66
57.66
57.65
57.59
57.60
57.58
10
10
1 0
65. 655
45. 01 7
8.475
71 .813
50.263
Peg
Shed
Shed
Shed
57.60
57.6057
.64
57.62
57.62
57.69
57.69
57.67
57.67
57.69
58.05
58.0358.0458
.06
57.60
Garage
Garage
Garag e
Garage
Column
ColumnColumn Column Column Column ColumnColumn
ColumnColumn
Column Column
Column
Column
Column
Column
Column
Column
Column
Column
ColumnColumn
Column
ColumnColumnColumn
ColumnColumnColumn
ColumnColumnColumn
ColumnColumn
ColumnColumn
ColumnColumn
Column
ColumnColumn
Column
ColumnColumn
Column
ColumnColumn
Column
ColumnColumn
Column
Column
Column
ColumnColumn
ColumnColumnColumn
Column
ColumnColumn
Column
ColumnColumn ColumnColumn
Column
Column
Communications C
able
Comm
unications Cable
Communi c at i ons Cabl e
Communications CableCommunications Cable
Communications Cable
Communications Cable
Bott om o f Ker bBottom of Kerb
Bottom of Kerb
58.0457
.7857.76
57.5457
.2856.9856
.7156.42
56.1556.15
55.95
55.77
55.69 58
57
57
57
57
5656
56
56
56
LEGEND
Communications Cable
Water pipe
Drainage pipe
Sewer main
Sewer Main
Water main
57.61
57.59
57.60
57.5957
.6057.61 57
.6257.62
57.62
57.61 57
.6157.62 57
.63
57.63
57.62
57.62
57.63
57.61
57.63
57.6457
.6357.6157
.6257.62
Aerial power
Aerial power line
Palm
Tree
Building
Corner
Edge of Gravel
Gravel
IL
Bottom of Bank
Top of Bank
Top of Bank
Gully
Communications cable
Telstra box/pit
Change of grade
Breakline
Fence
Meter
Fence
N
S
W E
PROPOSED CHILD CARE CENTRE
play area
EXT. STORE
residential portion of Lot 1334180
3000proposed
18090 13090
1237
3pr
opos
ed30
390
7500
1000
stor
e30
9082
83
landscaping
PUBLIC OPEN SPACE
store4590 7500
0m
DATE
SHEET NO.
SCALE
DRAWN
4 Browning RoadArmadale WA 6112Phone: (08) 9399 6715Fax: (08) 9399 8564www.iqconstruction.com.auINTELLIGENT DESIGN,QUALITY BUILD
ADDRESS
PROJECT STAGE DRAWING
ALL DRAWING, PLANS AND DESIGNS ARE SUBJECT TO COPYRIGHT AND ANY ATTEMPT OR ACTUAL INFRINGEMENT BY USING, REPRODUCING OR COPYING THE SAME WHOLLY OR IN PART WITHOUT WRITTEN PERMISSION FROM THE
DESIGNER WILL RESULT IN LEGAL PROCEEDINGS
15m
1 : 300SKETCHCHILD CARE CENTRE SITE PLAN27 Aug. '19
of 2
evr
S2LOT 13 (#2) WALTERS ROAD,
BYFORDjob
#00
00
NOTE: All areas are approximate only. Design is subject to site conditions, location of services, energy efficiency compliance and approval of relevant authorities.
AREASExternal Store 14.2 m²Child Care Centre 534.7 m²External Area 15.1 m²TOTAL 563.9 m²
IQ CONSTRUCTION
CLIENT
8.8m x 7.2m 8.8m x 7.2m
8.0m x 6.5m
8.0m x 6.5m
6.6m x10.3m
5.5m x 2.8m
2.7m x 3.0m 5.2m x 3.0m
5.9m x 3.8m2.0m x 2.3m
2.8m x 2.3m
1.2m x 2.1m
5.5m x 5.3m
2.3m x 2.7m
61 m²ROOM 1
61 m²ROOM 2
52 m²ROOM 3
52 m²ROOM 4
72 m²ROOM 5 KITCHEN
FOYER / RECEPTION
OFFICE 1ACC. WC
LAUNDRY
STAFF WC
STAFF AREA
PREP AREA
MALE BATHROOM
FEMALE BATHROOM
PORTICO
storage
over
all
3039
0
overall18090
openable partitions
fully equiped kitchen
WC
CUPBOARDS
• Child care centre to cater for: • up to 75 children (ages 3 and over)• up to 10 staff members
DESIGN NOTES
0m
DATE
SHEET NO.
SCALE
DRAWN
4 Browning RoadArmadale WA 6112Phone: (08) 9399 6715Fax: (08) 9399 8564www.iqconstruction.com.auINTELLIGENT DESIGN,QUALITY BUILD
ADDRESS
PROJECT STAGE DRAWING
ALL DRAWING, PLANS AND DESIGNS ARE SUBJECT TO COPYRIGHT AND ANY ATTEMPT OR ACTUAL INFRINGEMENT BY USING, REPRODUCING OR COPYING THE SAME WHOLLY OR IN PART WITHOUT WRITTEN PERMISSION FROM THE
DESIGNER WILL RESULT IN LEGAL PROCEEDINGS
5m
1 : 100SKETCHCHILD CARE CENTRE SKETCH PLAN14 Aug. '19
of 2
evr
S1LOT 13 (#2) WALTERS ROAD,
BYFORDjob
#00
00
NOTE: All areas are approximate only. Design is subject to site conditions, location of services, energy efficiency compliance and approval of relevant authorities.
AREASExternal Store 14.2 m²Child Care Centre 534.7 m²External Area 15.1 m²TOTAL 563.9 m²
NO
RT
H
IQ CONSTRUCTION
CLIENT
Lloyd George Acoustics
Appendix B
Land Zoning Map
Lloyd George Acoustics
Appendix C
Terminology
Lloyd George Acoustics
The following is an explanation of the terminology used throughout this report.
Decibel (dB) The 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.
A-Weighting An 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. An A-weighted sound level is described as LA dB.
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. This is similar to a 1kW electric heater always radiating 1kW of heat. 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.
Sound Pressure Level (Lp) The sound pressure level of a noise source is dependent upon its surroundings, being influenced by distance, ground absorption, topography, meteorological conditions etc and is what the human ear actually hears. Using the electric heater analogy above, the heat will vary depending upon where the heater is located, just as the sound pressure level will vary depending on the surroundings. Noise modelling predicts the sound pressure level from the sound power levels taking into account ground absorption, barrier effects, distance etc.
LASlow This is the noise level in decibels, obtained using the A frequency weighting and the S (Slow) time weighting as specified in IEC 61672-1:2002. Unless assessing modulation, all measurements use the slow time weighting characteristic.
LAFast This is the noise level in decibels, obtained using the A frequency weighting and the F (Fast) time weighting as specified in IEC 61672-1:2002. This is used when assessing the presence of modulation only.
LAPeak This is the greatest absolute instantaneous sound pressure in decibels using the A frequency weighting as specified in IEC 61672-1:2002.
LAmax An LAmax level is the maximum A-weighted noise level during a particular measurement.
LA1 An 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 An 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.
Lloyd George Acoustics
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.
LA90 An 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.
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.
LAmax assigned level Means an assigned level which, measured as a LA Slow value, is not to be exceeded at any time.
LA1 assigned level Means an assigned level which, measured as a LA Slow value, is not to be exceeded for more than 1% of the representative assessment period.
LA10 assigned level Means an assigned level which, measured as a LA Slow value, is not to be exceeded for more than 10% of the representative assessment period.
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 -
(a) the A-weighted sound pressure level in any one-third octave band; and
(b) the arithmetic average of the A-weighted sound pressure levels in the 2 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% of the representative assessment period, or greater than 8 dB at any time when the sound pressure levels are determined as LA Slow levels.
This is relatively common in most noise sources.
Modulating Noise A modulating source is regular, cyclic and audible and is present for at least 10% of the measurement period. The quantitative definition of modulation is:
a variation in the emission of noise that —
(a) is more than 3 dB LA Fast or is more than 3 dB LA Fast in any one-third octave band;
(b) is present for at least 10% of the representative.
Lloyd George Acoustics
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 LA peak and LA Max slow is more than 15 dB when determined for a single representative event;
Major Road Is a road with an estimated average daily traffic count of more than 15,000 vehicles.
Secondary / Minor Road Is a road with an estimated average daily traffic count of between 6,000 and 15,000 vehicles.
Influencing Factor (IF)
( ) ( )
100m within roadmajor each for 6450m within roadmajor each for 2
100m within roadsecondary each for 2 dB) 6 of (maximumFactor Traffic
noise thereceiving premises theof radius 450m a within land commercial of percentage the%TypeB
noise thereceiving premises theof radius a100m within land commercial of percentage theB Type %
noise thereceiving premises theof radius 450m a within land industrial of percentage the%TypeA
noise thereceiving premises theof radius a100m withinland industrial of percentage theA Type %
:
B Type %B Type %201A Type %A Type %
101
450
100
450
100
450100450100
===+
=
=
=
=
+++=
where
Representative Assessment Period Means a period of time not less than 15 minutes, and not exceeding four hours, 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.
Background Noise Background noise or residual noise is the noise level from sources other than the source of concern. When measuring environmental noise, residual sound is often a problem. One reason is that regulations often require that the noise from different types of sources be dealt with separately. This separation, e.g. of traffic noise from industrial noise, is often difficult to accomplish in practice. Another reason is that the measurements are normally carried out outdoors. Wind-induced noise, directly on the microphone and indirectly on trees, buildings, etc., may also affect the result. The character of these noise sources can make it difficult or even impossible to carry out any corrections.
Ambient Noise Means the level of noise from all sources, including background noise from near and far and the source of interest.
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.
Lloyd George Acoustics
Peak Component Particle Velocity (PCPV) The maximum instantaneous velocity in mm/s of a particle at a point during a given time interval and in one of the three orthogonal directions (x, y or z) measured as a peak response. Peak velocity is normally used for the assessment of structural damage from vibration.
Peak Particle Velocity (PPV) The maximum instantaneous velocity in mm/s of a particle at a point during a given time interval and is the vector sum of the PCPV for the x, y and z directions measured as a peak response. Peak velocity is normally used for the assessment of structural damage from vibration.
RMS Component Particle Velocity (PCPV) The maximum instantaneous velocity in mm/s of a particle at a point during a given time interval and in one of the three orthogonal directions (x, y or z) measured as a root mean square (rms) response. RMS velocity is normally used for the assessment of human annoyance from vibration.
Peak Particle Velocity (PPV) The maximum instantaneous velocity in mm/s of a particle at a point during a given time interval and is the vector sum of the PCPV for the x, y and z directions measured as a root mean square (rms) response. RMS velocity is normally used for the assessment of human annoyance from vibration.
Chart of Noise Level Descriptors
Typical Noise Levels
A05
2
A06 2
60 m²ROOM 2
107 m²ROOM 1
60 m²ROOM 3
65 m²ROOM 4
overa
ll
30
39
0
overall
18090
nappy changing
facilites in laundry
internal window
KITCHEN
RECEPTIONFOYER
STAFF
LDRY
PDR
OFFICEUAT
PREP.
1290
sd
2810 3170
w
1410 200
d
880 1330
w
610 1790
sd
2810 1790
1
1
28
90
sd
35
10
52
0
d
88
01
44
5
d
88
02
26
5
d
88
05
20
sd
35
10
28
85
d
88
02
12
5
w
24
10
10
90
w
24
10
12
90
overall
18090
790 880 520 3510 1950 880 3860 3510 520 880 790
overa
ll
30
39
0
41
90
61
10
20
09
0
41
90
30
0
w81
0
29
0
d +
lite
12
10
17
90
w81
09
00
32
90
w
24
10
12
90
w
24
10
79
0
w
24
10
79
0
w
24
10
79
0
w
24
10
10
90
Alum Frm2143 x 1690
double820
820glazed
Alu
m F
rm214
3 x
1210
820glazed
820glazed
820glazed
820glazed
820glazed
820glazed
820glazed
820glazed
A07
1A07
1
A07
3
A07
3
A07
2A07
2
A07
4
A07
4
03 04
08
09
07
06
15
20
31
30
272834
12
05
02
11
10
square bulkhead
@ 28c (2400)
elec ubo
gas hp
canopy rangehood
over gas hotplate
plasterboard lined ceiling @
31c + pl (2692) throughout
1500w opening
@ 28c (2400)
FL @ 00c
PORCHpaved @ -1c
BATHstaff bathroom
WC
WC
230
room 4
6650 90
laundry
2800 90
bath
2030 90
staff room
5880 230
230
room 4
6650 90
powder
1260 90
pass
1450 90
staff room
8000 230
230 6650 90
str.
540
90
rec.
720 1450 90
kitchen
5500 230
porch
2500
230
wc
5000 90 2810 90
pass
1550 90 5500 230 200
w
1810 490
230
room 2
7275 90
wc
2800 90
room 1
7375 230
230
room 2 / prep
7900 90
pass
1550 90
room 1
8000 230
230 4170 90
storage
3640 90 1550 90 8000 230
230
room 3
7900 90 1550 90
uat
2710 90
office
5200 230
230 7900 90 1550 90
reception
5500
foyer
2500 230
230
320
d
1690 490
23
0
roo
m 4
88
25
90
wc
28
00
90
roo
m 3
70
55
90
pre
p
28
90
90
roo
m 2
80
00
23
0
23
0
lau
nd
ry
23
65
90
roo
m 4
78
15
90
roo
m 3
85
00
90
22
00
90
str
.
60
09
08
00
02
30
23
02
36
59
0
po
wd
er
21
00
90
sto
re /
recess
24
85
90
passag
e
17
62
09
0
wc
50
00
23
0
23
0
sta
ff r
oo
m
37
30
23
0
po
rch
61
10
23
0
foyer
26
60
90
offic
e
30
00
90
roo
m 1
13
79
02
30
23
03
73
09
0
kitch
en
37
60
90
rece
ptio
n
52
90
90
uat
30
00
90
13
79
02
30
23
0
bath
23
65
90
12
75
90
37
60
90
52
90
90
30
00
90
roo
m 1
87
00
90
wc
50
00
23
0
dp
refer note 1
refer note 1
refer note 1
refer note 1
refer note 1
washing machine
in laundry
1m wide brick paved path to
perimeter of building @ -1c
dp
dp
dp
dp
dp
dp
2000w opening
@ 28c (2400)
hws as per
builders addenda
comb.
meterbox
• Child care centre to cater for:
• up to 75 children (ages 6 months and over)
• up to 10 staff members
DESIGN NOTES
• Mechanically vent to outside
• Smoke Detector alarm to be installed in
accordance to BCA requirements
• Down Pipe location, nominal only. down
pipe and gutter to comply to BCA
requirements
• Tie Down, refer to engineer's drawings
for specifications
• Lift Off hinge door frame to sanitary
compartments BCA requirements
BUILDER'S NOTES
hatch indicates varied ceiling height
roof beams to eng. details
1
sd
dp
td
l/o
symbol indicates visual access
between areas, via glazed doors or
internal windows
0m
DATE
SHEET NO.
SCALE
DRAWN
4 Browning Road
Armadale WA 6112
Phone: (08) 9399 6715
Fax: (08) 9399 8564
www.iqconstruction.com.au
INTELLIGENT DESIGN,
QUALITY BUILD
ADDRESS
PROJECT STAGE DRAWING
ALL DRAWING, PLANS AND DESIGNS ARE SUBJECT TO COPYRIGHT AND ANY
ATTEMPT OR ACTUAL INFRINGEMENT BY USING, REPRODUCING OR COPYING
THE SAME WHOLLY OR IN PART WITHOUT WRITTEN PERMISSION FROM THE
DESIGNER WILL RESULT IN LEGAL PROCEEDINGS
5m
1 : 100PLANNINGCHILD CARE CENTRE FLOOR PLAN15 Jan. '20
of 8
dm
P04LOT 13 (#2) WALTERS ROAD,
BYFORD
job
#0
00
0
AREASExternal Store 14.2 m²
Child Care Centre 534.5 m²
Portico 15.3 m²
TOTAL 563.9 m²
NORTH
@A2
Ground FL
00
Ground CL
26922692
feature timber
beam over
painted shs postselect 2c facebrick finishaluminium framed external
windows and doors
31
820glazed
20 15 06 07 09 08
a
a
f
s f
s f s
fff
s f s
fff
f ss f ss
25c 25c
14c
0c
4c
9c9c
f
f
25c
14c
25c
4c
9c
25c
4c
9c
25c
18c
5°
custom orb
roof cover
Ground FL
00
Ground CL
26922692
820glazed
04
820glazed
03
820glazed
select 2c facebrick finishaluminium framed external
windows and doors
painted timber
barge capping
0c
25c
0c
25c
5°
fsdsdf fsdsdf
1.8m high
colorbond fence
• External face brickwork: Midland Brick - Tammin
• Roof cover: Colorbond - Manor Red
• Gutters and fascia: Colorbond - Surfmist
• Painted barges: Colorbond - Surfmist
• Eaves: White
• External window and door frames: Jason
Windows - White Lustre
EXTERNAL COLOURS
0m
DATE
SHEET NO.
SCALE
DRAWN
4 Browning Road
Armadale WA 6112
Phone: (08) 9399 6715
Fax: (08) 9399 8564
www.iqconstruction.com.au
INTELLIGENT DESIGN,
QUALITY BUILD
ADDRESS
PROJECT STAGE DRAWING
ALL DRAWING, PLANS AND DESIGNS ARE SUBJECT TO COPYRIGHT AND ANY
ATTEMPT OR ACTUAL INFRINGEMENT BY USING, REPRODUCING OR COPYING
THE SAME WHOLLY OR IN PART WITHOUT WRITTEN PERMISSION FROM THE
DESIGNER WILL RESULT IN LEGAL PROCEEDINGS
5m
1 : 100PLANNINGCHILD CARE CENTRE ELEVATIONS15 Jan. '20
of 8
dm
P05LOT 13 (#2) WALTERS ROAD,
BYFORD
job
#0
00
0
1 : 100
East Elevation1
1 : 100
North Elevation2
Ground FL
00
Ground CL
26922692
select 2c facebrick finish
aluminium framed external
windows and doors
12 34
820glazed
28 27
obscure glazing
painted timber
barge capping
a
f sd fsdf sd fsd
f
5°
combination
meterbox
Ground FL
00
Ground CL
26922692
nominal area for signage, to
comply with Council requirements
select 2c facebrick finish
aluminium framed external
windows and doors
10 11
820glazed
02
820glazed
820glazed
820glazed
0525c 25c
0c
25c
0c
4c
25c
s f s f
f sd sd f f sd sd f
raked fibre cement
eaves, painted finish
painted timber
barge capping
nominal area for signage, to
comply with Council requirements
nominal area for signage, to
comply with Council requirements
9cs s
ff fff f
hws as per
builders addenda
• External face brickwork: Midland Brick - Tammin
• Roof cover: Colorbond - Manor Red
• Gutters and fascia: Colorbond - Surfmist
• Painted barges: Colorbond - Surfmist
• Eaves: White
• External window and door frames: Jason
Windows - White Lustre
EXTERNAL COLOURS
0m
DATE
SHEET NO.
SCALE
DRAWN
4 Browning Road
Armadale WA 6112
Phone: (08) 9399 6715
Fax: (08) 9399 8564
www.iqconstruction.com.au
INTELLIGENT DESIGN,
QUALITY BUILD
ADDRESS
PROJECT STAGE DRAWING
ALL DRAWING, PLANS AND DESIGNS ARE SUBJECT TO COPYRIGHT AND ANY
ATTEMPT OR ACTUAL INFRINGEMENT BY USING, REPRODUCING OR COPYING
THE SAME WHOLLY OR IN PART WITHOUT WRITTEN PERMISSION FROM THE
DESIGNER WILL RESULT IN LEGAL PROCEEDINGS
5m
1 : 100PLANNINGCHILD CARE CENTRE ELEVATIONS15 Jan. '20
of 8
dm
P06LOT 13 (#2) WALTERS ROAD,
BYFORD
job
#0
00
0
1 : 100
South Elevation1
1 : 100
West Elevation2
56
56
56
56
57
57
57
57
58
10
Service Pole
57.84
57.71
57.67
57.71
57.66
57.58
57.62
57.62
IL 57.34
IL 57.15
57.735
7.61
57.49
57.40
57.18
56.95
56.74
56.32
55.90
58.0458.08
58.08
58.02
57.73
57.96
57.83
57.74
57.68
57.67
57.53
57.54
57.55
57.54
57.28
57.13
56.92
57.035
6.60
56.565
6.18
56.285
6.00
56.00
56.18
55.69
55.77
55.95
56.15
56.42
56.71
56.98
57.28
57.54
57.76
57.78
58.04
55.83
55.82
55.86
55.88
55.90
55.92
55.94
55.93
55.95
55.95
55.93
55.93
55.90
55.91
55.85
55.82
55.76
55.73
55.71
56.00
55.90
55.93
56.26
56.34
56.26
56.17
56.44
56.40
56.81
56.76
56.56
56.65
56.98
55.86
55.65
55.86
55.95 5
5.79
55.94
57.73
57.37
56.90
56.88
56.85
56.72
56.62
56.27
56.23
56.44
56.04
56.87
57.885
7.79
57.81
57.66
57.58
57.58
57.58
57.43
57.41
57.32
57.27
57.27
57.29
57.36
57.64
57.70
57.71
57.67
57.67
57.65
56.555
6.26
56.11
56.97
56.98
57.62
57.45
57.34
57.09
57.04
57.53
57.67
57.69
57.69
57.74
57.72
57.72
57.70
57.74
57.72
57.75
57.60
58.06
58.03
58.05
57.69
57.67
57.67
57.69
57.62
57.64
57.60
57.60
57.42
57.12
56.72
56.18
56.06
55.84
55.73
55.72
55.79
55.89
56.21
56.65
57.71
57.79 5
8.08
57.85
56.87
57.68
57.61
57.61
57.59
57.62
57.53
57.60
57.52
57.63
57.64
57.63
57.20
57.33
57.67
57.77
57.79
57.95
57.73
57.62
57.58
57.58
57.58
57.58
57.47
TBM
RL 58.03
SO
UTH
WESTER
N H
IGH
WA
Y
LOT 13
LOT 12
LOT 2343609m²
TWIN SIDE WALL
VACANT AREA
FO
OTP
ATH
SEWER PC
50
.29
71.89
8.4
8
45
.04
65.68
STORM WATEROUTLET
300 RCP
TBMRL 56.08
'PF'
WALTERS ROAD
N
S
W E
PROPOSED CHILD CARE CENTRE
play area
provide new landscaping and verge infrastructure
where exsiting crossover has been removed
FFL @ 57.785 (00c)
EXT. STORE
FFL @ 57.699 (-1c)
existing metal and timber post
boundary fence to remain
select finish to driveway and carpark, to
comply with Council requirements
crossover
7000
select finish to crossover with splayed
turnouts, to comply with Council requirements
52
03
25
00
25
00
25
00
25
00
25
00
25
00
25
00
25
00
25
00
25
40
35
00
25
00
25
00
25
00
25
00
25
00
40
20
3000
proposed Child Care Centre
18090 13090
12
37
3
pro
po
sed
Ch
ild C
are
Ce
ntr
e
30
39
07
50
0
carpark / driveway
12090
ext
. str
30
90
10
00
enclose play area with metal and
timber post fence to match existing
proposed play area to be at
natural ground level
secure bin storage in
external store
FFL @ 57.699 (-1c)
brick paving @ 57.699 (-1c)
park
ing
bays -
to
tal o
f 15
41
04
0
play area
SW SW SW
SW SW SW
SW
SW
SW
SW
SW
SW
fence gate
PORCH
FFL @ 57.699 (-1c)
existing retaining walls to remain, provide
additional as required to match
proposed play area to be at
natural ground level
naturally grade land
away from building
slope driveway and
carpark to soakwells
1.8m high
colorbond fence
boundary fence on additional retaining
walls to match existing
residential portion of Lot 13
34180
existing metal and timber post
boundary fence to remain
• Stormwater to run into soakwells as per
builder's standard specification. All
soakwells to be interconnected. Sizes to
comply with relevant shire requirements.
STORMWATER
1200Ø x 1200 deep soakwellSW
1200Ø x 1200 deep soakwell, top
of lid at floor level with open grateSW
• Climate zone 5, as per Building Codes of
Australia
• No floor insulation required for zone 5
areas.
• Select ceiling insulation to house and
attached garage.
• All tap fittings other than bath outlets and
garden taps to be a minimum 4 star WELS
rated.
• All shower heads to be minimum 3 star
WELS rated.
• All internal hot water outlets (taps,
showers, washing machine water supplies)
to be connected to a hot water system or to
a recirculating hot water system with pipes
installed and insulated in accordance with
AS/NZ 3500:2003. plumbing and drainage,
part 4 heated water service.
• Pipework from the hot water system or
recirculating hot water system to the
furthermost hot water outlet must not
exceed 20 metres in length or 2 litres of
internal volume.
• All sanitary flushing systems to be a
minimum 4 star rated dual flush systems.
ENERGY RATING
• Builder to check all dimensions prior to
commencing construction. Do not scale
drawings.
• All site dimensions dependant on original
and future surveys.
• These drawings are to be read in
conjunction with all structural engineering
drawings.
• All external steelwork including lintels and
post stirrups to be hot dipped galvanised.
• All external fixings to be galvanised.
• All steel strutting beam sizes are nominal
only and are to be checked by builder
before construction.
• Select brickwork with selected external
render where specified externally.
• Timber studwork construction with select
cladding externally.
• All timber sizes not indicated shall comply
with the light timber framing code AS 1684.
• All roof framing to Australian Standards,
including tie down bolts and triple grips.
• All strutting beam sizes and locations are
nominal only and to be confirmed by
builder prior to commencing.
• Termite treatment to local authority
requirements and NCC Part 3.1.3, Part 2.1.1
and Part 1.0.7.
• Builder to liaise with plumbing contractor
on site regarding all plumbing fixtures and
fittings.
• All non-standard windows where indicated
on drawings to comply with Australian
Standards.
• All scaffolding to comply with the
occupational health, safety and welfare act.
• Gas hot water system to manufacturer's
requirements.
• Gas cooktop to manufacturer's
requirements.
• Electric oven to manufacturers'
requirements.
BUILDER'S NOTES
0m
DATE
SHEET NO.
SCALE
DRAWN
4 Browning Road
Armadale WA 6112
Phone: (08) 9399 6715
Fax: (08) 9399 8564
www.iqconstruction.com.au
INTELLIGENT DESIGN,
QUALITY BUILD
ADDRESS
PROJECT STAGE DRAWING
ALL DRAWING, PLANS AND DESIGNS ARE SUBJECT TO COPYRIGHT AND ANY
ATTEMPT OR ACTUAL INFRINGEMENT BY USING, REPRODUCING OR COPYING
THE SAME WHOLLY OR IN PART WITHOUT WRITTEN PERMISSION FROM THE
DESIGNER WILL RESULT IN LEGAL PROCEEDINGS
10m
1 : 200PLANNINGCHILD CARE CENTRE SITE PLAN15 Jan. '20
of 8
dm
P02LOT 13 (#2) WALTERS ROAD,
BYFORD
job
#0
00
0
@A2
Service Pole
TBMRL 58.03
SO
UTH
WESTER
N H
IGH
WA
Y
LOT 13
LOT 12
LOT 2343609m²
TWIN SIDE WALL
VACANT AREA
FO
OTP
ATH
SEWER PC
50
.29
71.89
8.4
8
45
.04
65.68
STORM WATEROUTLET
300 RCP
TBMRL 56.08
'PF'
WALTERS ROAD
all existing trees
to remain
provide new landscaping and verge infrastructure
where exsiting crossover has been removed
grass cover to
proposed play area
grass cover to
proposed play area
new landscaping to enclose and protect play area,
extent of new plants and select species to be at
owners discretion, to the satisfaction of the Council
new landscaping to enclose and protect play area,
extent of new plants and select species to be at
owners discretion, to the satisfaction of the Council
PROPOSED CHILD CARE CENTRE
EXT. STORE
naturally grade land
away from building
brick paving @ 57.699 (-1c)
additional verge trees as/if required,
as per Council specifications
FFL @ 57.699 (-1c)
select finish to driveway and carpark, to
comply with Council requirements
fence gate
1.8m high
colorbond fence
0m
DATE
SHEET NO.
SCALE
DRAWN
4 Browning Road
Armadale WA 6112
Phone: (08) 9399 6715
Fax: (08) 9399 8564
www.iqconstruction.com.au
INTELLIGENT DESIGN,
QUALITY BUILD
ADDRESS
PROJECT STAGE DRAWING
ALL DRAWING, PLANS AND DESIGNS ARE SUBJECT TO COPYRIGHT AND ANY
ATTEMPT OR ACTUAL INFRINGEMENT BY USING, REPRODUCING OR COPYING
THE SAME WHOLLY OR IN PART WITHOUT WRITTEN PERMISSION FROM THE
DESIGNER WILL RESULT IN LEGAL PROCEEDINGS
10m
1 : 200PLANNINGCHILD CARE CENTRE LANDSCAPING PLAN15 Jan. '20
of 8
dm
P03LOT 13 (#2) WALTERS ROAD,
BYFORD
job
#0
00
0
NORTH
@A2
TBMRL 58.03
SOU
TH W
ESTE
RN
HIG
HW
AY
LOT 13
LOT 12
LOT 234
3609m²
SWIMMING POOL
TWIN SIDE WALL
TWIN
SID
E W
ALL
TWIN
SID
E W
ALL
SHED
EXISTING DWELLINGBRICK & TILE
FFL 57.77
PAVING
GARDEN
GARDEN
GARDEN
PATIO
CARPORT
BRICK WALL
VACANT AREA
FOO
TPA
TH
SEWER PC
50.29
71.89
8.48
45.0
4
65.68
LEGEND
Meter
Telstra box/pit
Gully
Top of Bank
Bottom of Bank
IL
Tree
Palm
Change of grade
Top of Bank
Drainage pipe
Edge of Gravel
Fence
Building
Aerial power
Water pipe
Sewer main
Communications Cable
Description
FEATURE & CONTOUR SURVEYLOT 13 (#2( WALTERS ROAD, BYFORD
Client
Cad File
Drawing 2WaltersRdByfordSurveyV1
Scale
Datum
Drawn
Surveyed BD 05-08-19
BD 07-08-19
MGA 94 AHD
1:200 @ A3REV DATE DETAILS
07-08-19A Original Drawing
0 102 4 6 8
22 Brockman Street. Capel. WA 6271
T: 0427078797
E: [email protected] LOCAL AUTHORITY:SHIRE OF SERPENTINE-JARRAHDALE
STORM WATER OUTLET
DBYD - SEWERPROPERTY CONNECTION
DETAILS
300 RCP
TBMRL 56.08
PAVING
'PF'
WALTERS ROAD
CONTOUR INTERVALMAJOR 1m
MINOR 0.2m