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SMB DESIGN AND CONSTRUCTION Pty Ltd COMMERCIAL AND RESIDENTIAL PO Box 1473 Traralgon 3844 Phone (03) 51761217 [email protected]
SMB
C O M M E R C I A L A N D R E S I D E N T I A L
DESIGN AND CONSTRUCTION
PLANNING REPORT
Demolish existing Service Station and Buildings To redevelop the land for a 24hour service station incorporating a carwash, associated carparking, variation to the crossover widths (existing crossovers) required by Clause 52.12 and internally illuminated advertising signage. Use Existing.
Property Address: 145a Percy Street Portland Date: February 2018
Applicant: SMB Design and Construction Owner: Darren Noseda 922-924 Raglan Parade Warrnambool
SMB DESIGN AND CONSTRUCTION Pty Ltd COMMERCIAL AND RESIDENTIAL PO Box 1473 Traralgon 3844 Phone (03) 51761217 [email protected]
1 Site and Surrounds The subject site is located at 145a Percy Street Portland. The site is irregular in shape with a frontage of 62.91 metres to Percy Street. The site has an area of 2749 sqm. The site is currently used as a service station and car repair workshops. The land is zoned IN3Z and partly C2Z the property to the North of the site is zoned IN3Z. The property across Percy Street (RDZ1) is zoned C2Z. Properties to the South are zoned CZ1 and the properties two the West are zoned GRZ1.
SMB DESIGN AND CONSTRUCTION Pty Ltd COMMERCIAL AND RESIDENTIAL PO Box 1473 Traralgon 3844 Phone (03) 51761217 [email protected]
2 Proposal The proposal is for buildings and works associated with the use of the land for the purpose of a Service Station/Convenience Store and Carwash.
SMB DESIGN AND CONSTRUCTION Pty Ltd COMMERCIAL AND RESIDENTIAL PO Box 1473 Traralgon 3844 Phone (03) 51761217 [email protected]
Described as follows: SERVICE STATION/CONVENIENCE STORE/CARWASH The Service Station and carwash use will operate 24 hours a day, 7 days a week. No mechanical repairs are proposed to operate from this site. The Convenience Store Building is 120sqm and has a maximum height of 4.20m. The building is setback 8.5m from Percy Street property boundary which is less than the existing building (to be demolished) on the site and 0m on the Northern boundary. There is one public entry to the building on southern side fronting the fuel canopy. The fuelling canopy has an area of 485 sqm. The canopy will have a maximum height of 6.2 m providing weather protection to the petrol pump forecourt. The fuel pumps are located 4.8m from the property boundary. Proposed pumps, fuel refill points and underground fuel storage tanks are shown indicatively on the plans. The carwash building is 73sqm and is located 27.035 meters from the front property boundary, 0.15 meters for the southern boundary and 11.10m from the rear boundary. It has a maximum height of 6.0meters The plantroom is 18sqm and is located 6.15 meters from the front boundary and at its closest point 1.0 meters for the side boundary. It has a maximum height of 3.2 meters. A total of 11 car parking spaces (including one disabled space) are proposed to be located on the north and western side of the site. There is also an additional space provided for air and water. There are also 8 available spaces under the canopy. There is one loading bay on the eastern side of the building and measures 8.0m x 3.8mard area. Convenience store deliveries will occur between zero and 3 times daily. Fuel deliveries will be 2-3 times per week, 7am until 10pm via 19m semi trailer. The attached traffic report shows vehicle turning template and location of the indicative underground fuel filling points demonstrate that a 19m fuel tanker is located wholly on the site while filling the tanks and that all vehicles can enter, circulate and exit the site safely. Mechanical plant will be located either on the roof or adjacent to the building. Vehicle access to the site will be via the existing crossovers on Percy Street. The proposed crossovers will allow for both entry and exiting to and from the site The crossovers are in excess of the 7.7m requirement of Clause 52.12-1. A number of business identification signs are proposed for the site in the form of a non- illuminated and illuminated. See attached signage drawing for details and locations. 490 Sqm of landscaping is provided on the site see the accompanying site plan for details. The landscaping backing on to the Residential properties is 5.7m in width and is in excess of the requirement.
SMB DESIGN AND CONSTRUCTION Pty Ltd COMMERCIAL AND RESIDENTIAL PO Box 1473 Traralgon 3844 Phone (03) 51761217 [email protected]
3 Planning Controls The subject site is included within the Industrial 3 zone (IN3Z) and Commercial 2 Zone (C2Z) and is not affected by any overlays pursuant to the provisions for the Glenelg Shire Council Planning Scheme. 3.0 Industrial Three and Commercial One Zone The Service Station/Convenience Store is located within the I3Z and is listed in the Permit Not Required section but the land is within 30m of a Residential Zone and therefore requires a permit The development is also subject to existing rights use. The Carwash is located in the CZ1 of the site and is not listed in any of the Sections and therefore requires a permit. A permit is required for construction of a building for both zones. The use of the development is compatible with the needs of the surrounding community and is existing for the service station/convenience store. The scale and intensity of the development is proportionate to the surrounding buildings. The site has adequate landscaping and provides softening of the development. There is adequate carparking on the site. The internal layout of the site provides safety for both traffic and pedestrians. It is noted that the IN3Z is included in the Category 2 and CZ1 is included in Category 1 for the purposes of the advertising sign requirements at Clause 52.05-7 of the Planning Scheme. 3.05 Particular Provisions In addition to the zone and overlay provisions of the Scheme, the following particular provisions are also relevant to the proposal. Clause 52.05 Advertising Signs – A permit is required under the provision for a business identification sign with a total area to the premises in excess of 8 sqm, internally illuminated business identification signs with an area in excess of 1.5sqm and internally illuminated major promotion business identification signs.
• The illuminated ID sign is 1.85sqm. Clause 52.06 Car Parking- 11 Car spaces are provided and therefore the car parking is consistent with the requirements of 52.06. Clause 52.07 Loading and Unloading of Vehicles: A Building with a floor area of 2,600 sqm or less in a single occupation and associated with the manufacture servicing, storage or sale of goods or materials required a loading bay with a minimum length of 7.6m and a width of 3.6 m, resulting in an area of 27.4 sqm. A permit may be granted to reduce or waive these requirements. The proposed loading bay adjoining the building is consistent with the loading bay requirements of Clause 52.07
SMB DESIGN AND CONSTRUCTION Pty Ltd COMMERCIAL AND RESIDENTIAL PO Box 1473 Traralgon 3844 Phone (03) 51761217 [email protected]
Clause 52.12 Service Station – A permit is required to vary the requirements of this provision. A variation is sought from these requirements in relation to: Crossovers and Dimensions, Road Setbacks.
• The existing crossovers to the Percy Street are 10.2m and 13.8m in width and are therefore exceeding 7.7 metres.
• The building is site back 8.5m from the Percy Street frontage and therefore less that the 9.0m required in road setbacks.
Clause 52.13 Carwash- A permit is required to vary the requirements of this provision. A variation is sought from these requirements in relation to: Crossover widths and queuing lanes.
• The existing crossovers to the Percy Street are 10.2m and 13.8m in width and are therefore exceeding 7.7 metres.
• Refer to the attached Traffic Report for queueing. Clause 52.29 Land Adjacent to a Road Zone, Category 1, or a Public Acquisition Overlay for a Category 1 Road – A permit is required to alter access to a Road Zone Category 1 Under this provision, an application to alter access to land owned by the Roads Corporation for the purpose of a road must be referred to the Roads Corporation under Section 55 of the Act. It is noted that there are crossovers to Percy Street are existing and are not being altered. Clause 52.34 Bicycle Facilities – Table 1 to Clause 52.34-3 Requires the 1 space to each 600sqm of leasable floor area and 1 visitor/ shopper space to each 3500 sqm of leasable floor area. A permit may be granted to vary, reduce or waive any requirement of Clause 52.34-3 and Clause 52.34-4. A bicycle parking area is not required for this development.
5 Planning Assessment The use of the land for purposes of a Service Station/Convenience Store and carwash , aligns with policy guidance contained within the Planning Scheme. In this regard, the proposal is appropriately located on the site with frontages to Percy Street. The likely effect of the proposed use on the surrounding land uses will be minimal as the site is currently operation as a Sevice Station /Conveinece Store and Motor repair workshop located on a Road Zone 1 (RDZ1). A service station in this location will continue to provide a service to the local community, serving the current and future business and residential communities. The design is of a contemporary built form that responds to the scale and form of existing and emerging development. A low rise single storey, built form that will not adversely impact the immediate area and surrounds improving the overall amenity and landscaping. Furthermore, the siting and design of the proposed development will not have any unreasonable shadowing to adjacent properties. The open forecourt of the development and the siting of the crossovers allow for clear view lines to be maintained along both roadways thereby maintaining acceptable safety standards for vehicles and pedestrians. Advertising signs are consistent with typical service station signage advertising the nature of the use and the proposed products and services offered.
SMB DESIGN AND CONSTRUCTION Pty Ltd COMMERCIAL AND RESIDENTIAL PO Box 1473 Traralgon 3844 Phone (03) 51761217 [email protected]
The accompanying drawings and reports show the swept path diagrams have been designed to facilitate the safe, efficient and functional movement of vehicles and maintain clear view lines for the safety of pedestrians. The provision for car parking spaces is appropriate in satisfying the demands of the proposed development taking into account the fact that the pump forecourt is also capable of accommodating the parking of stationary vehicles whilst being refuelled. In conclusion, it is evident that the built form and use responds to the intent of the Industrial 3 Zone and Commercial Zone to achieve a good balance. For these reasons and the views expressed in the supporting documentation the proposal represents an appropriate and desirable planning outcome that should be supported.
onemilegrid.com.au 1/59 Keele Street, Collingwood, VIC 3066 (03) 9939 8250
145a Percy Street, Portland Transport Impact Assessment
180015TIA001A-F.docx
20 February 2018
145a Percy Street, Portland Transport Impact Assessment 180015TIA001A-F.docx 20 February 2018
Page 2
onemilegrid ABN: 79 168 115 679
(03) 9939 8250
1/59 Keele Street
COLLINGWOOD, VIC 3066
www.onemilegrid.com.au
DOCUMENT INFORMATION
Prepared for SMB Design and Construction
File Name 180015TIA001A-F.docx Report Date 20 February 2018
Prepared by James Dear Reviewed by Valentine Gnanakone
Signature
Signature
© One Mile Grid Pty Ltd. This document has been prepared by onemilegrid for the sole use and benefit of the
client as per the terms of engagement. It may not be modified or altered, copied, reproduced, sold or
transferred in whole or in part in any format to any person other than by agreement. onemilegrid does not
assume responsibility or liability to any third party arising out of use or misuse of this document.
145a Percy Street, Portland Transport Impact Assessment 180015TIA001A-F.docx 20 February 2018
Page 3
CONTENTS
1 INTRODUCTION............................................................................................................ 4
2 EXISTING CONDITIONS ................................................................................................. 4 2.1 Site Location ........................................................................................................................... 4 2.2 Road Network......................................................................................................................... 5 2.2.1 Percy Street .................................................................................................................................. 5 2.3 Sustainable Transport ............................................................................................................ 5 3 DEVELOPMENT PROPOSAL ............................................................................................. 6 3.1 General ................................................................................................................................... 6 3.2 Car Parking and Vehicular Access ..................................................................................... 6 3.3 Loading and Waste Collection............................................................................................. 7 4 DESIGN CONSIDERATIONS ............................................................................................ 8 4.1 General ................................................................................................................................... 8 4.2 Clause 52.06 Assessment ...................................................................................................... 8 4.2.1 Design Standard 1 – Accessways ............................................................................................ 8 4.2.2 Design Standard 2 – Car Parking Spaces ............................................................................... 9 4.3 Clause 52.12 – Service Station ............................................................................................. 9 4.4 Clause 52.13 – Car Wash .................................................................................................... 10 4.5 Fuel Tanker Access .............................................................................................................. 11 4.6 Loading and Waste Collection........................................................................................... 11 5 BICYCLE PARKING CONSIDERATIONS ........................................................................... 11
6 CAR PARKING CONSIDERATIONS................................................................................. 12 6.1 Statutory Car Parking Requirements .................................................................................. 12 6.1.1 Car Parking Requirements – Clause 52.06 ............................................................................ 12 6.2 Review of Car Parking Provision......................................................................................... 12 7 TRAFFIC CONSIDERATIONS .......................................................................................... 14 7.1 Traffic Generation ................................................................................................................ 14 7.1.1 Service Station ........................................................................................................................... 14 7.1.2 Car Wash .................................................................................................................................... 14 7.2 Traffic Impact ....................................................................................................................... 14 8 CONCLUSIONS .......................................................................................................... 15
TABLES
Table 1 Clause 52.06-9 Design Assessment – Design Standard 1 ..................................................... 8 Table 2 Service Station Design Requirements ...................................................................................... 9 Table 3 Clause 52.13 Requirements ..................................................................................................... 10 Table 4 Clause 52.06 – Car Parking Requirements ............................................................................ 12
FIGURES
Figure 1 Site Location ................................................................................................................................. 4 Figure 2 Public Transport Provision ........................................................................................................... 5 Figure 3 Access and Circulation .............................................................................................................. 6
APPENDICES
APPENDIX A SWEPT PATH DIAGRAMS ............................................................................................. 16
145a Percy Street, Portland Transport Impact Assessment 180015TIA001A-F.docx 20 February 2018
Page 4
1 INTRODUCTION
onemilegrid has been requested by SMB Design and Construction to undertake a Transport Impact
Assessment of the proposed service station and car wash development at 145a Percy Street in
Portland.
As part of this assessment the subject site has been inspected with due consideration of the
development proposal and relevant background reports have been reviewed.
2 EXISTING CONDITIONS
2.1 Site Location
The subject site is located in Portland, on the west side of Percy Street, north of the juncture of Percy
Street and Otway St, as shown in Figure 1.
Figure 1 Site Location
Copyright Melway Publishing
The site is currently occupied by a BP service station, with access to the site provided from separate
crossovers located at the southern and northern ends of the site frontage to Percy Street. The
service station provides four double-sided bowsers, with an associated convenience shop at the
southern end of the site.
The site has a frontage of approximately 62 metres to Percy Street and a total site area of
approximately 2,750m2.
Land use in the immediate vicinity of the site is varied, with largely residential uses to the west and a
mix of commercial uses to the north and south along Percy Street.
The site is located within an Industrial 3 Zone (IN3Z).
Subject Site
145a Percy Street, Portland Transport Impact Assessment 180015TIA001A-F.docx 20 February 2018
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2.2 Road Network
2.2.1 Percy Street
Percy Street is an urban collector road generally aligned north-south, intersecting with Glenelg
Street in the south, and connecting through to New Street in the north.
Percy Street provides a single traffic lane and on-road bike lane in each direction, with a painted
median accommodating a right-turn lane into the site. A combination of parallel and angle
kerbside parking are provided on both sides.
A 60km/h speed limit applies to Percy Street in the vicinity of the site.
2.3 Sustainable Transport
There are two public bus services that operate in Portland, comprising the Portland North (Route 1)
and Portland South (Route 2) bus services.
The Portland North (Route 1) service provides good public transport access to the site, with the
service looping around North Portland and allowing passengers to alight within 300 metres walking
distance of the site.
The public transport network map is provided in Figure 2
Figure 2 Public Transport Provision
Subject Site
145a Percy Street, Portland Transport Impact Assessment 180015TIA001A-F.docx 20 February 2018
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3 DEVELOPMENT PROPOSAL
3.1 General
It is proposed to demolish the existing buildings on-site and construct a new service station, which
includes the following;
➢ A petrol station with 4 double sided car bowsers and a single LPG gas pump;
➢ An associated convenience shop, with an area of 120m2; and
➢ A hand car wash, with two car wash bays and an associated vacuum bay.
3.2 Car Parking and Vehicular Access
No modifications to access are proposed, with both the northern and southern crossovers to be
retained. The southern crossover will be restricted to inbound movements only, whilst exit
movements will occur from the northern crossover.
A view of the proposed access arrangement is provided in Figure 3 below.
Figure 3 Access and Circulation
Twelve (12) car spaces (including one accessible space, and one air and water space) are to be
provided for the use.
Inbound
Outbound
145a Percy Street, Portland Transport Impact Assessment 180015TIA001A-F.docx 20 February 2018
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3.3 Loading and Waste Collection
A dedicated loading bay is provided in the northeast corner of the site, along the east wall of the
convenience store.
Fuel filling will be accommodated in the eastern portion of the petrol station area, with the filling
point located directly to the north of the easternmost bowsers.
145a Percy Street, Portland Transport Impact Assessment 180015TIA001A-F.docx 20 February 2018
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4 DESIGN CONSIDERATIONS
4.1 General
onemilegrid has undertaken an assessment of the car parking layout and access for the proposed
development with due consideration of the Design Standards detailed within Clause 52.06, 52.12
and 52.13 of the Planning Scheme. A review of those relevant Design Standards is provided in the
following section.
4.2 Clause 52.06 Assessment
4.2.1 Design Standard 1 – Accessways
A summary of the assessment for Design Standard 1 is provided in Table 1.
Table 1 Clause 52.06-9 Design Assessment – Design Standard 1
Requirement Comments
Be at least 3 metres wide Satisfied
Have an internal radius of at least 4 metres at changes of direction or
intersection or be at least 4.2 metres wide Satisfied
Allow vehicles parked in the last space of a dead-end accessway in
public car parks to exit in a forward direction with one manoeuvre
Satisfied (Wait for swept
paths)
Provide at least 2.1 metres headroom beneath overhead obstructions,
calculated for a vehicle with a wheel base of 2.8 metres
Satisfied – Height
clearances underneath
the fuel canopy will
exceed 2.1 metres
If the accessway serves four or more car spaces or connects to a road
in a Road Zone, the accessway must be designed so that cars can exit
the site in a forward direction
Satisfied – All vehicles
can exit in a forward
direction
Provide a passing area at the entrance at least 6.1 metres wide and 7
metres long if the accessway serves ten or more car parking spaces
and is either more than 50 metres long or connects to a road in a
Road Zone
N/A – Both site
accesses will operate
one-way only.
Therefore, passing is not
required.
Have a corner splay or area at least 50 per cent clear of visual
obstructions extending at least 2 metres along the frontage road from
the edge of an exit lane and 2.5 metres along the exit lane from the
frontage, to provide a clear view of pedestrians on the footpath of the
frontage road. The area clear of visual obstructions may include an
adjacent entry or exit lane where more than one lane is provided, or
adjacent landscaped areas, provided the landscaping in those areas
is less than 900mm in height.
Satisfied – All pedestrian
sight triangles will be
clear of any
obstructions or
landscaping greater
than 900mm height.
If an accessway to four or more car parking spaces is from land in a
Road Zone, the access to the car spaces must be at least 6 metres
from the road carriageway.
Satisfied
145a Percy Street, Portland Transport Impact Assessment 180015TIA001A-F.docx 20 February 2018
Page 9
4.2.2 Design Standard 2 – Car Parking Spaces
All car spaces on-site are proposed with a minimum width of 2.6 metres, length of 5.5 metres and
are accessed from aisles of no less than 6.4 metres in excess of the Planning Scheme requirements.
The accessible parking space and shared space are dimensioned in excess of the requirements of
the Australian Standard for Off-Street Parking for People with Disabilities AS2890.6 and are
considered appropriate.
4.3 Clause 52.12 – Service Station
Clause 52.12 of the Planning Scheme provides specific requirements with regards to the use of a
service station to ensure that the use of the land for a service station does not impair traffic flow or
road safety.
The relevant items with regard to car parking and traffic are discussed in Table 2 below.
Table 2 Service Station Design Requirements
Category Requirement Comment
Site Area
and
Dimensions
➢ The site must be at least 1,080 square metres.
➢ The frontage must be at least 36 metres (30
metres if the site is on a corner) and the depth at
least 30 metres.
The subject site exceeds
these minimum
dimensions.
Crossovers
No more than 2 vehicle crossovers may service the
site from a road and at the road alignment a
crossover must be:
➢ No wider than 7.7 metres.
➢ At least 4.5 metres from another crossover on the
site.
➢ At least 4.5 metres from another road or if a
splayed corner, at least 7.7 metres from the splay.
➢ At least 1.8 metres from a crossover on another
property.
All of these criteria are
satisfied with the
exception of the crossover
width. Wider crossovers
are required to
accommodate larger
vehicles. Refer to
discussion below.
Kerb or
Barrier
➢ Except at crossovers, a kerb or barrier must be
built along the road alignment to prevent the
passage of vehicles.
Kerbing is provided along
the frontage of the site.
Road
Setbacks
➢ A wall of a building must be at least 9 metres
from a road.
➢ A canopy must be at least 2.5 metres from a
road.
➢ Petrol pumps, pump islands, water and air supply
points and storage tank filling points must be at
least 3.6 metres from a road.
➢ Petrol tankers must be wholly on the site when
storage tanks are being filled.
➢ Driveway space must be sufficient to enable a
vehicle 13.8 metres by 2.5 metres to enter and
leave the site without reversing
➢ No vehicle may be serviced unless it is wholly on
the site.
The above elements have
been achieved in the
design. Swept path
diagrams are provided in
Appendix A
demonstrating petrol
tanker access.
145a Percy Street, Portland Transport Impact Assessment 180015TIA001A-F.docx 20 February 2018
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Trailers for
Hire
If trailers are for hire on the site:
➢ The site must be at least 1,080 square metres.
➢ All trailers must be wholly on the site and must not
encroach on landscaping or car parking areas or
accessways.
➢ On a corner site, a trailer higher than 1 metre
must be parked at least 9 metres from the corner.
No trailer hire facilities are
proposed on the site.
It is acknowledged that the crossover widths are in excess of 7.7 metres specified above, however
these crossovers have been designed specifically to accommodate the swept paths of a 19 metre
semi-trailer associated with the existing service station use. No alterations to the existing crossovers
are proposed.
4.4 Clause 52.13 – Car Wash
Clause 52.13 of the Planning Scheme provides specific requirements with regards to the use of a
car wash to ensure that the use of the land for a service station does not impair traffic flow or road
safety.
Relevant traffic engineering requirements are discussed in Table 3.
Table 3 Clause 52.13 Requirements
Category Requirement Comment
Crossovers
No more than 2 vehicle crossovers may service the
site from a road and at the road alignment a
crossover must be:
➢ No wider than 7.7 metres.
➢ At least 4.5 metres from another crossover on the
site.
➢ At least 4.5 metres from another road or if a
splayed corner, at least 7.7 metres from the splay.
➢ At least 1.8 metres from a crossover on another
property.
As above, all of these
criteria are satisfied with
the exception of the
crossover width. Wider
crossovers are required
to accommodate larger
vehicles. Refer to
discussion above.
Kerb or
Barrier
➢ Except at crossovers, a kerb or barrier must be
built along the road alignment to prevent the
passage of vehicles.
As above, kerbing is
provided along the
frontage of the site.
Queuing
Lane
➢ A queuing lane on the site must be able to
accommodate at least 10 vehicles before entry
to the car wash.
➢ If petrol is available for sale to vehicles queuing to
be washed, the lane must be able to
accommodate at least 10 vehicles before the
petrol selling point.
➢ The lane must be clearly shown on the ground
and marked for use only by vehicles queuing to
be washed.
➢ The area between the exit from a car wash and
the nearest crossover must be able to
accommodate at least 2 vehicles in single file.
Refer discussion below
The queuing area on approach to the car wash may accommodate approximately eight vehicles
before circulation to other parts of the site is impacted.
145a Percy Street, Portland Transport Impact Assessment 180015TIA001A-F.docx 20 February 2018
Page 11
Given the nature of a manual car wash bay, being utilised in largely an opportunistic manner, it is
considered very unlikely that patrons will opt to wait should there be considerable queues. As such,
it is considered that queueing area for eight vehicles is sufficient.
Whilst line marking for designated queueing lanes is currently not proposed, it may be introduced
as required by Council.
4.5 Fuel Tanker Access
The fuel fill point is to be located to the immediate north of the easternmost fuel bowser.
Tankers will enter the site from the southernmost Percy Street access and prop at the fill point,
allowing vehicles to safely and conveniently pass a stationary fuel tanker. Swept paths are
provided in Appendix A illustrating the swept path of a petrol tanker (26m B-Double).
4.6 Loading and Waste Collection
The loading bay has been designed to accommodate trucks 8.8m length (medium rigid truck).
Swept paths are also provided in Appendix A demonstrating access to the loading bay.
5 BICYCLE PARKING CONSIDERATIONS
The bicycle parking requirements for the subject site are identified in Clause 52.34 of the Glenelg
Planning Scheme.
No rate is listed within the scheme for petrol station use, and whilst the convenience shop falls
under the banner of the ‘shop’ land-use classification, there is no trigger for shop uses less than
1,000m2 floor area.
Similarly, no rate is listed within the Planning Scheme for car wash use and as the car wash
component only attracts car drivers, it clearly doesn’t generate a requirement for bike parking.
As such, the development does not trigger any requirements for bicycle parking.
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6 CAR PARKING CONSIDERATIONS
6.1 Statutory Car Parking Requirements
6.1.1 Car Parking Requirements – Clause 52.06
The car parking requirements for the subject site are identified in Clause 52.06 of the Glenelg
Planning Scheme, which specifies the following requirement for the convenience store component
of the proposed development.
Table 4 Clause 52.06 – Car Parking Requirements
Use Area Rate Car Parking Measure Total
Convenience shop 120 m2 10 To each premises 10
It is noted that no rate is listed within the clause for the petrol station or the car wash use on-site. In
this regard, Clause 52.06 states:
“Where a use is not specified in Table 1 or where a car parking requirement is not specified
for the use in another provision of the planning scheme or in a schedule to the Parking
Overlay, before a new use commences or the floor area or site area of an existing use is
increased, car parking spaces must be provided to the satisfaction of the responsible
authority.”
As such, the development requires 10 car spaces to be provided on-site, plus any additional
parking required by Council for the service station and the car wash uses.
It is proposed to provide a total of twelve car spaces to service the proposed development.
To confirm the appropriateness of the proposed supply, a review has been undertaken below to
confirm that sufficient parking is provided on-site.
6.2 Review of Car Parking Provision
The proposed convenience shop/service station functions primarily as a petrol outlet rather than a
shop and is unlikely to attract a significant number of shoppers beyond those already purchasing
fuel. Notably, the use comprises only 120m2 floor area and will provide a limited range of
convenience goods for sale.
Based on the above, the vast majority of the service station patronage will be that of motorists
purchasing fuel. These patrons typically proceed to the kiosk to pay for the fuel without moving
their vehicles from the position occupied during refuelling and therefore do not require a separate
parking space. In effect, eight parking spaces are provided at the fuel bowsers for this type of
parking demand.
On occasion, the use may generate some additional parking demand for customers purchasing
convenience goods. It is not anticipated that demands will exceed four parking spaces.
In addition to customer parking demands, the use will also attract regular demands associated with
an employee who operates the kiosk, and the parking of perhaps an additional employee during
the changeover of shifts.
The car wash functions as a hand car wash, whereby drivers enter the car wash bay and use the
car wash facilities to clean their own car. As such, when the car wash is being used it generates no
demand for parking outside of the two dedicated wash bays provided on-site.
A queueing area is provided to the rear of the car wash bays, capable of accommodating up to
eight queued vehicles. Given the provision of this queueing area, it is not anticipated that any
additional parking demands will be generated across the site.
145a Percy Street, Portland Transport Impact Assessment 180015TIA001A-F.docx 20 February 2018
Page 13
In addition, as the car wash is a self-service car wash, there are no employee demands associated
with the use, as it is assumed that service station staff will maintain the facilities required for
customer operation of the car wash.
In total, the service station and convenience shop uses are expected to generate demand for up
to six parking spaces, and the car wash is not anticipated to generate any parking demands at all.
With 11 customer parking spaces (excluding the air and water space) to be provided on-site, the
provision of parking will far exceed the development-generated demands.
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7 TRAFFIC CONSIDERATIONS
7.1 Traffic Generation
7.1.1 Service Station
The volume of traffic generated by a service station depends on the location of the site, time of
day, surrounding traffic volumes, and whether a convenience store or other uses are included in
the development.
As noted above, the subject site has previously operated as a BP (British Petroleum) service station
with associated convenience store. Comparable in size, the previous service station contained
eight fuel pumps and an associated convenience shop with a floor area of approximately 120m2,
which is the number of pumps and the approximate floor area of the convenience shop proposed
for this development.
Noting that the BP service station was operating at the time of writing, it is anticipated that the
traffic generation associated with the proposed service station and convenience store component
of the development will be equivalent to that of the traffic generated by the current service
station/convenience store development. In view of this it anticipated there will be no additional
traffic generated for the service station/convenience store component.
7.1.2 Car Wash
The proposed car wash will contain two manual car wash bays. Case study data collected for
both automatic and manual car wash bays indicates that they typically generate in the order of 4-
6 vehicle movements per bay during the AM and PM commuter peak hours.
Based on the above rates, it is anticipated the car wash will generate a total of 10 vehicle
movements in the AM peak and a total of 10 vehicle movements in the PM peak period.
It is important to note that a large majority of vehicles utilising the car wash facility comprise of
passing trade, i.e. vehicles that are already on the adjacent road network which are merely
diverted to the site from a broader trip purpose. As such, these trips do not represent additional
vehicle movements on the road network.
Furthermore, it is acknowledged that a considerable number of the vehicle trips to the car wash
facility will be directly associated with petrol station trips.
7.2 Traffic Impact
Reviewing the volumes above, it is projected that the proposed redevelopment will generate up to
10 additional vehicle movements during the peak hours from the existing conditions.
This is equivalent to one additional movement (in or out) every six minutes to Percy Street and as
such is not expected to have any considerable impact on the operation of the surrounding road
network.
145a Percy Street, Portland Transport Impact Assessment 180015TIA001A-F.docx 20 February 2018
Page 15
8 CONCLUSIONS
It is proposed to develop the subject site for the purposes of a service station, with 4 double-sided
bowsers, and an associated convenience shop and car wash.
Considering the analysis presented above, it is concluded that:
➢ The proposed car parking and access design is considered appropriate;
➢ The use does not generate any requirement for bicycle parking;
➢ The car parking layouts and accesses have been designed generally in accordance with the
requirements of the Planning Scheme and are considered appropriate;
➢ The proposed provision of parking is considered sufficient to meet anticipated demands;
➢ The anticipated traffic volumes generated by the development are not expected to have an
impact on the operation of Percy Street or the surrounding road network and;
➢ There are no traffic engineering reasons which should preclude a permit from being issued for
this proposal.
145a Percy Street, Portland Transport Impact Assessment 180015TIA001A-F.docx 20 February 2018
Page 16
Appendix A Swept Path Diagrams
DP
DP
DP
CO
ND
UIT LIN
EC
ON
DUIT LIN
EC
ON
DUIT LIN
E
CS
UC
SU
CS
U
DP
CO
ND
UIT LIN
E
CS
U
BIN
VAC
VAC
1
2
3
4
5
6
7
8
910
11
HANDBASIN
ICE
0 2 4 8
SPA100 A180015
13.70
1.60 5.30
4.20
0.20
1.40 9.50
: 2.50Tractor Width
70.0
:27.8
:
Trailer Track
Tractor Track
: 2.50
2.50
:6.0
:
meters
Steering Angle
Lock to Lock Time
Articulating Angle
Trailer Width 2.50:
PM S 19M
PERCY STREET
300mm CLEARANCE ENVELOPE SHOWN DOTTED
19m SEMI SWEPT PATH SHOWN DASHED
ACCESS MANOEUVRES
JDDW
145 PERCY STREET, PORTLAND
SWEPT PATH ANALYSIS
-
1:400 @ A3
SITE ACCESS - 19m SEMI
Drawing Title
Scale
Designed Approved Melway Ref
CA
D File:
N:\Proje
cts\2018\180015\Dra
win
gs\180015
SP
A100.d
gn
08-02-2018
Date Plotted:
10:10:03 A
M
Project Number Drawing Number Revision
FUEL FILL POINTP
M S 19
M
AUSTR
OA
DS 2013 (A
U)
(c) 2018
Transoft Solutio
ns, In
c.
All
rig
hts reserved.
PM S 19MAUSTROADS 2013 (AU)
(c) 2018 Transoft Solutions, Inc. All rights reserved.
PM S 19MAUSTROADS 2013 (AU)
(c) 2018 Transoft Solutions, Inc. All rights reserved.
PM S 19MAUSTROADS 2013 (AU)
(c) 2018 Transoft Solutions, Inc. All rights reserved.
DP
DP
DP
CO
ND
UIT LIN
EC
ON
DUIT LIN
EC
ON
DUIT LIN
E
CS
UC
SU
CS
U
DP
CO
ND
UIT LIN
E
CS
U
BIN
VAC
VAC
1
2
3
4
5
6
7
8
910
11
HANDBASIN
ICE
0 2 4 8
SPA101 A180015
PERCY STREET
JDDW
145 PERCY STREET, PORTLAND
SWEPT PATH ANALYSIS
-
1:400 @ A3
300mm CLEARANCE ENVELOPE SHOWN DOTTED
8.8m SERVICE VEHICLE SWEPT PATH SHOWN DASHED
ACCESS MANOEUVRES
1.50 5.00
8.80
Lock to Lock Time
Width
Track
Steering Angle
:
:
2.50
2.50
:
38.7:
6.0
metersSERVICE VEHICLESITE ACCESS - 8.8m SERVICE VEHICLE
Drawing Title
Scale
Designed Approved Melway Ref
CA
D File:
N:\Proje
cts\2018\180015\Dra
win
gs\180015
SP
A101.d
gn
08-02-2018
Date Plotted:
10:07:18 A
M
Project Number Drawing Number Revision
8.8m SERVICE VEHICLE
SERVICE VEHICLE
AUSTROADS 2013 (AU)
SERVICE VEHICLEAUSTROADS 2013 (AU)
(c) 2018 Transoft Solutions, Inc. All rights reserved.
SERVICE VEHICLEAUSTROADS 2013 (AU)
(c) 2018 Transoft Solutions, Inc. All rights reserved.
SE
RVIC
E
VE
HIC
LE
AUSTR
OA
DS 2013 (A
U)
(c) 2018
Transoft Solutio
ns, In
c.
All
rig
hts reserved.
SERVICE VEHICLEAUSTROADS 2013 (AU)
(c) 2018 Transoft Solutions, Inc. All rights reserved.
DP
DP
DP
CO
ND
UIT LIN
EC
ON
DUIT LIN
EC
ON
DUIT LIN
E
CS
UC
SU
CS
U
DP
CO
ND
UIT LIN
E
CS
U
BIN
VAC
VAC
1
2
3
4
5
6
7
8
910
11
HANDBASIN
ICE
0 2 4 8
SPA102 A180015
PERCY STREET
JDDW
145 PERCY STREET, PORTLAND
SWEPT PATH ANALYSIS
-
1:400 @ A3
SITE ACCESS - B85 WITH TRAILER & B99 VEHICLE
300mm CLEARANCE ENVELOPE SHOWN DOTTED
B85 WITH TRAILER AND B99 VEHICLE SWEPT PATH SHOWN DASHED
ACCESS MANOEUVRES
3.050.95
5.20
B99
Lock to Lock Time
Width
Track
:
:
:
6.0
1.84
1.94
Steering Angle 33.9:
metersDrawing Title
Scale
Designed Approved Melway Ref
CA
D File:
N:\Proje
cts\2018\180015\Dra
win
gs\180015
SP
A102.d
gn
08-02-2018
Date Plotted:
10:16:48
Project Number Drawing Number Revision
Lock to Lock Time
Car Width
Steering Angle
Trailer Track
Trailer Width
Car Track
:
:
:
:
:
:
meters
B85 Car - Trailer
34.1
6.0
1.72
1.77
1.82
1.87
3.341.30
1.502.800.92 2.97
4.91
Articulating Angle 70.0:
B85 WITH TRAILER
B99 VEHICLE
B85 Car - Trailer
onemilegrid(c) 2018 Transoft Solutions, Inc. All rights reserved.
B85 Car - Trailer
onemilegrid(c) 2018 Transoft Solutions, Inc. All rights reserved.
B99
STA
NDARDS 2004 (A
U_
NZ)
(c) 2018 Transoft S
olutions, Inc. All rights reserved. B99
STANDARDS 2004 (AU_NZ)
(c) 2018 Transoft Solutions, Inc. All rights reserved.
B99
STA
NDARDS 2
004 (A
U_NZ)
B99
STA
NDARDS 2004 (A
U_
NZ)
(c) 2018 Tra
nso
ft Solutio
ns,
Inc.
All rig
hts
reserved.
B99
STANDARDS 2004 (AU_NZ)
(c) 2018 Transoft Solutions, Inc. All rights reserved.
B85 Car - Trailer
onemilegrid(c) 2018 Transoft Solutions
, Inc. All rights reserved.
B85 Car - Trailer
onemilegrid(c) 2018 Transoft Solutions, Inc. All rights reserved.
22nd February 2018 Report Ref. 18012 Title: Determination of Noise Limit as per SEPP N-1 regarding proposed
manual car wash and vacuum facility at 145a Percy Street, Portland, Victoria and assessment of likely compliance.
Brief: Determine Effective Noise Levels and Noise Limits as per State
Environment Protection Policy N-1 (Control of Noise from Industry, Commerce and Trade) at nearest residences re proposed manual car wash and vacuum facility at 145a Percy Street, Portland, Victoria.
Client: SMB DESIGN AND CONSTRUCTION 1 Church Street Traralgon
VIC 3844 Contact: Suzanne Bogan Tel: 03 51761217
Mob: 0428 761217 E: [email protected]
Page 2 of 12
1.0 Introduction Audiometric & Acoustic Services has been appointed as part of a Planning Permit Application No. 17111 in relation to the proposed carwash facility at 145a Percy Street, Portland, Victoria. The Glenelg Shire has requested that the Client submit an “acoustic report and proposed noise attenuation methods.” The aim of this assessment is to determine the Noise Limits when any relevant EPA Policy is applied. In this case the EPA’s Policy Noise from Industry in Regional Victoria (NIRV) is not applicable as the population is greater than 7000. Specifically, NIRV requires the Limits to be set according to the State Environment Protection Policy N-1 (Control of Noise from Industry, Commerce and Trade) No. N-1 or SEPP N-1. Accordingly, we will use data from previous reports undertaken by this firm for car wash use to calculate proposed noise levels. 2.0 Description of Facility The car wash will be manual in operation with two vacuum units and two wash bays. Entry and exit to the site will be from Percy Street. We are anticipating a combined 5 cars per half hour as likely worst case scenario. SEPP N-1 requires the proposed measurement period to be of 30mins. No noise attenuating doors are proposed in the design of wash bays. It is our understanding that the facility is to be fitted with a central vacuum system which places the drive motor and vacuum pump within the plant room. This is a sensible and practical method of noise control from vacuums. However, it should be noted that some vacuum units are noisier than others, despite the centralizing of the equipment. We recommend that that vacuum units be specified for purchase as quiet operation units. The generating zone is specified on the drawings provided as Industrial (IN3Z) and the nearby residents are specified as Commercial Zone 2 (C2Z) and General Residential (GRZ1). Our area of concern is primarily for #4a, #5 and #6 Tanner Court and #16 Otway Street, Portland. Figure 1 Zoning areas adjacent to 145a Percy Street Portland
Page 3 of 12
3.0 Operating Hours The Client has asked for 24hrs per day to be assessed and for the proposed hours to reflect any restrictions SEPP N-1 may allocate. 4.0 Applicable EPA Policy – SEPP N-1 4.1 Noise Limits - Times Noise limits are specified by the State Environmental Protection Policy (Control of Noise from Industry, Commerce and Trade) No. N-1 or SEPP N-1. This Policy prescribes noise limits for commercial, industrial or trade premises. The goal of the Policy is to protect residential areas from commercial, industrial or trade noise that may affect the general use of a noise sensitive area. SEPP N-1 guidelines prescribe different levels for different times of the business day and can be defined as follows: Day 0700—1800 Monday—Friday 0700—1300 Saturdays Evening 1800—2200 All Days 1300—1800 Saturdays 0700—1800 Sundays and Public Holidays Night 2200—0700
The Policy prescribes what is known as the Effective Nose Level from the commercial or trade site, meaning the level of noise emitted from the source that is received after adjustments at the nearest noise sensitive receiver (in this case a residential property). Additionally, it identifies the noise limit at the nearest residence which is calculated taking into account the measured background noise level at the subject premises and the zoning levels. This Policy is specified in this report for the purpose of determining whether the commercial premises will likely comply with the EPA’s SEPP N-1 Noise Limits in assessing its potential impact on the defined residential premises of #4a, #5 and #6 Tanner Court and #16 Otway Street, Portland. 4.2 SEPP N-1 Noise Limit Criteria and Measurements 4.2.1 Background Noise Measurements re #5 Tanner Court, Portland. A noise logger was set up on the fence line of #5 Tanner Court and 145a Percy Street from approximately 1530hrs on Friday 26th January until 1100hrs on Friday 2nd February 2018. The weather was fine though at times the wind was moderately elevated. The logger is not believed to be affected by wind. We see no significant difference in the prevailing background noise across the measurement period. Background Noise Measurement – Noise Logger Results The following L90 measurements have been averaged over the EPA time periods.
Page 4 of 12
Table 1: SEPP N1 Background Level – 26/2/2018 – 2/2/2018 at 5 Tanner Court Average L90 dB(A) Average EPA Day Period 46 Average EPA Evening Period 43 Average EPA Night Period 36
A confirmation spot measurement was taken on Monday 29/2/18 at street front of #6 Tanner Street, Portland by sound level meter. The result as are as per Table 2. This corresponds well with the data collected by the logger for the average Day Period. Table 2: SEPP N1 Background Level on Monday 29/2/18 at street front of #6 Tanner Street, Portland L90 dB(A) Day Period 44
The measurements of the prevailing background noise for Tanner Street residents above are believed to be neutral and representative of the area. 4.3 Noise Limits applicable at Residences Table 3 details the Noise Limits for the EPA time periods. The Limit for any SEPP N-1 related items have been set by applying the Zoning Levels via the Influencing Factor of 0.44 as extrapolated from the SEPP N-1. The Noise Limits for the Night Period are based on Low Background Levels whereas the Zoning Limits apply to the Evening and Day Periods. Table 3: SEPP N-1 Limits
Day Evenings Night
Limits as per Zoning/Low Background Level
58 52 44
*All units in the table above are in dB(A) 5.0 Site Assessment re Future Noise Levels 5.1 Data re Proposed Car Wash Equipment We have been provided with drawings outlining the proposed manual car wash layout. This will be supplemented by prior data from a previous report (Report reference 9015) conducted by this firm in 2008 for the manufacturer at their car wash in Melton Victoria regarding the noise levels generated.
Page 5 of 12
5.2 Data from Report Ref 9015 The following measurements were obtained. Vehicle – Ford Territory, including vacuuming boot area
Image 1 Pro Wash Power Vac
Table 4 Measurement of Pro Wash Power Vac
Measurement
Position
LAeq Minimum Maximum LA10 Comment
At 5m from
rear
69 67 75 71 3 minutes
incl boot
vacuum
Estimate at
15m from
rear
62 60 68 64
At 5m from
side
76 73 82 77 3 minutes
incl boot
vacuum
Estimate at
15m from
side
69 66 75 70
Page 6 of 12
Image 2 Manual Wash
Vehicle – small car
Table 6 Measurement of Manual Car Wash
Measurement
Position
Leq Minimum Maximum L10 Comment
At 5m from
front
68 50 69 (rear)
74 (front)
72 Full wash
cycle
At 15m from
front
62 47 (min
background)
62 (rear)
68 (front)
- Full wash
cycle
Estimate at
30m from
front
57 Prevailing
background
level
56 (rear)
63 (front)
61 Ditto
5.3 Calculations of Noise Levels at Nearest Residences The following are our calculations for the possible noise levels of the measured LAeq for a continuous 30 minutes period without any form of acoustic barrier. We believe this scenario to be possible should 2 or 3 cars be alternating between wash cycles and vacuum cycles as both activities typically take 15mins.
Page 7 of 12
Table 3 SEPP N-1 Limits and Effective Noise Levels at Nearest Residences.
Day Evenings Night
Limits as per Zoning/Low Background Level
58 52 44
Vacuum LAeq at Nearest Residence
76 76 76
Compliance Margin 18 24 32
Manual Wash LAeq at Nearest Residence
58 58 58
Compliance Margin 0 6 14
*All units in the table above are in dB(A) Table 3 above shows exceedances for both the vacuum units and the manual wash bays. We believe a suitable barrier needs to be designed to sufficiently attenuate noise emanating from the site as per Section 6. 6.0 Acoustic Barrier Design Due to the close proximity of the nearest residence and the projected exceedances, it is necessary to create a suitable barrier to reflect/attenuate the emitted noise. The acoustic barrier is proposed to extend the full length of the south and west property lines as per Figure 2, at a minimum height of 2.7m. We have performed calculations for the effective noise level with the proposed barrier at a height of 2.7m. The results are as per Table 4. Table 4 SEPP N-1 Limits and Effective Noise Levels at Nearest Residences with 2.7m Barrier
Day Evenings Night
Limits as per Zoning/Low Background Level
58 52 44
Vacuum LAeq at Nearest Residence
45 45 45
Compliance Margin -13 -7 1
Compliance Y/N/Marginal
Y Y Marginal
Page 8 of 12
Manual Wash LAeq at Nearest Residence
42 42 42
Compliance margin -16 -10 -2
Compliance Y/N/Marginal
Y Y Marginal
*All units in the table above are in dB(A) We recommend the following construction for the acoustic barrier:
• Minimum 90mm timber stub frame with 7.5mm Blueboard or equivalent cement sheeting fixed to both sides.
A neat fit is required with no gaps. The cement sheet should be dug minimum 50mm into the ground to ensure no breakout of noise under the fence. Figure 2
Page 9 of 12
7.0 Plant Room. The plant room is in an acoustically appropriate location, however it will need to be constructed of a suitable material. We recommend the following construction:
• Walls: Double brick construction with min 20mm cavity or min 140mm core filled Besser block construction.
• Access door: Must achieve a minimum Rw 35 and face Percy Street. A neat fit is required.
• Ceiling/Roof: Colorbond metal deck or Concrete tile with R3.5 fibrous batts and min 6mm cement sheet lining.
Please advise if any ventilation is needed for plant room as this will cause breakout of noise from the structure. 8.0 Recommended Operating Periods The proposed effective noise levels from the wash bays and vacuum systems are considered to be compliant with SEPP N-1 for the Day and Evening Periods however the results are marginal for the Night Period. SEPP N-1 requires a 30min effective LAeq to be used in calculations. In laymen’s terms the LAeq is the average noise level. This does not take into consideration the intermittent spikes in level (LMax) or any criterion for sleep disturbance. As the distance from the source to the nearby residents is moderate, and the reflective nature of the wash bay, we don’t believe that an increase in height of the noise barrier would be effective. We recommend that the wash bay and vacuums operate during the EPA Day and Evening Period, and that analysis of Night Period operations is undertaken once the car wash is up and running. Confirmation of Night Period compliance would involve a simulated test similar to Section 5.2 of this report to be undertaken at a time and day when the ambient background level is low. For example, a Sunday night after 10pm or before 7am. 9.0 Summary The proposed effective noise levels from the wash bays and vacuum systems are considered to be compliant with SEPP N-1 for the Day and Evening Periods with the proposed 2.7m barrier, however the results are marginal for the Night Period. We believe the situation to be low risk of annoyance to nearby noise sensitive receivers if recommendations as per Section 7 and 8 of this report are implemented. Confirmation of Night Period compliance will need to be undertaken insitu at a later date. Please feel free to contact us should any additional detail be required. This applies to any other parties that have legitimate access to this report.
Page 10 of 12
Respectfully,
Scott Henderson BEnv DipDes A.A.S Proofread by John Searle M.Eng 26th February 2018 Attachments Technical Appendix I Technical Appendix II
Page 11 of 12
TECHNICAL APPENDIX I Definitions of Terminology
Sound Pressure Level: The root-mean-square values of the pressure fluctuations above
and below atmospheric pressure caused by the passage of a sound wave, usually expressed in deci Bels (re 20 µ Pa)
decibel: Unit usually used to define sound pressure level relative to a
reference pressure. dB = 20 log10 ( P ) Pref (A): Reference to particular weighting network within a Sound Level
Meter which modifies the linear response. 'A' weighting is designed to approximate the response of the human ear.
(C): Reference to a weighting network within a Sound Level Meter.
Modifies the Linear response only slightly on the lower frequency range.
Rw Weighted Sound Reduction Index. A single figure rating of the
acoustic attenuation of materials either singly or as multiples. L10 The noise level exceeded for 10% of a measurement period.
Often used as a measurement of occasional interruptive noise, such as traffic.
LA1018hr The 18 hour Traffic Noise average. Arithmetic average of the A
weighted L10 sound levels from 0600hrs to 0000hrs. L90 The noise level exceeded for 90% of a measurement period.
Commonly accepted as the natural Background Noise Level. Leq: Equivalent Continuous Sound Level. This is calculated on the
basis of average of the Sound Pressure Level (acoustic energy) over a period of time and is expressed in deci Bels.
LAeq: The 'A' weighted Equivalent Continuous Sound Level. LAeq8hr The equivalent of 8 hours exposure to an LAeq of 85dB. The
actual exposure period may be longer or shorter than 8 hours. Slow - S: Dynamic characteristics of a Sound Level Meter which employs
a time saving averaging constant of 1 second. Fast - F: Dynamic characteristic - time averaging constant is 125m sec. Impulse - Imp: Dynamic characteristic - time averaging constant is 33m sec. Peak - Pk: Dynamic characteristic - time averaging constant is 1m sec.
Page 12 of 12
TECHNICAL APPENDIX II
Equipment Used Convergence Sound Sentry RT (Gr) Serial No. CFJWLvWaW18dAhtiY8BxHD Convergence Windshield Calibration checked against the Quest Calibrator Quest Calibrator Serial No. J.1060008 NATA Laboratory calibration due 13th November 2018 SVANtek Instruments Model 957 - Type 1 Sound Analyser Serial No. 14578 Aco Pacific Type 7052H Microphone Serial No. 40821 SVANtek Instruments Windshield NATA Laboratory calibration due 9th September 2018 Bruel & Kjaer 4230 Acoustic Calibrator Serial No. 1441408 NATA Laboratory calibration due 29th June 2018 The instruments were calibrated before and after the measurements. No significant change was found to have occurred.