traffic engineering assessment - monash council · is public park and recreation land in addition...

Traffic Engineering Assessment

Proposed Aged Care Extension at 161‐169 Jells Road & 171 Jells Road Wheelers Hill

Prepared for

Maview Pty Ltd

July, 2017 G22516R1C

Traffic Engineering Assessment 161‐169 Jells Road & 171 Jells Road Wheelers Hill: Proposed Aged Care Extension

G22516R1C

Traffic Engineering Assessment

Proposed Aged Care Extension at 161‐169 Jells Road & 171 Jells Road Wheelers Hill

Document Control

Issue No. Type Date Prepared By Approved By

A Draft 25/05/2017 J. Cossins C. Morello

B Draft 05/07/2017 J. Cossins C. Morello

C Final 12/07/2017 J. Cossins C. Morello

Traffix Template Version 1.1 – March, 2016

Our Reference: G22516R1C

COPYRIGHT: The ideas and material contained in this document are the property of Traffix Group (Traffix Group Pty Ltd – ABN 32 100 481 570, Traffix

Survey Pty Ltd – ABN 57 120 461 510, Traffix Design Pty Ltd – ABN 41 060 899 443). Use or copying of this document in whole or in part without the

written permission of Traffix Group constitutes an infringement of copyright.

LIMITATION: This report has been prepared on behalf of and for the exclusive use of Traffix Group’s client, and is subject to and issued in connection

with the provisions of the agreement between Traffix Group and its client. Traffix Group accepts no liability or responsibility whatsoever for or in

respect of any use of or reliance upon this report by any third party.


G22516R1C Page i

Table of Contents

1 Introduction .......................................................................................................................... 1

2 Existing Conditions ................................................................................................................ 2

2.1 Location ......................................................................................................................................... 2

2.2 Subject Site and Use ..................................................................................................................... 2

2.3 Existing Permit .............................................................................................................................. 3

2.4 Planning Scheme Zones & Surrounding Uses ............................................................................... 3

2.5 Road Network ............................................................................................................................... 4

2.6 Sustainable Modes of Transport ................................................................................................... 5

3 Proposal ................................................................................................................................ 6

3.1 Description .................................................................................................................................... 6

3.2 Car Parking .................................................................................................................................... 6

3.3 Access Arrangements .................................................................................................................... 6

3.4 Bicycle Parking .............................................................................................................................. 6

3.5 Loading Arrangements .................................................................................................................. 6

4 Car Parking Considerations .................................................................................................... 7

4.1 Statutory Parking .......................................................................................................................... 7

4.2 Car Parking Layout & Access Arrangements ................................................................................. 7

5 Traffic Considerations ............................................................................................................ 9

5.1 Existing Traffic Conditions ............................................................................................................. 9

5.2 Traffic Generation & Impact ......................................................................................................... 9

5.3 Access Design .............................................................................................................................. 10

6 Bicycle Parking Considerations ............................................................................................. 11

7 Loading Considerations ........................................................................................................ 12

8 Conclusions .......................................................................................................................... 13

List of Figures

Figure 1: Locality Map ............................................................................................................................ 2

Figure 2: Zoning Map .............................................................................................................................. 3

Figure 3: Ferntree Gully Road ‐ View East ............................................................................................... 4

Figure 4: Ferntree Gully Road ‐ View West ............................................................................................. 4

Figure 5: Jells Road – View South ........................................................................................................... 4

Figure 6: Jells Road – View North ........................................................................................................... 4

Figure 7: PTV Public Transport Map – Monash ...................................................................................... 5


G22516R1C Page ii

List of Tables

Table 1: Public Transport Services in the Vicinity of the Subject Site .................................................... 5

Table 2: Clause 52.34 Statutory Bicycle Parking ................................................................................... 11

Table 3: Clause 52.07 Minimum Loading Bay Requirements ................................................................ 12

List of Appendices

Appendix A Functional Layout Plan

Appendix B Vehicle Swept Paths


G22516R1C Page 1

1 Introduction

Traffix Group has been engaged by Maview Pty Ltd to prepare a traffic engineering assessment for a

proposed aged care extension at 161‐169 Jells Road & 171 Jells Road Wheelers Hill.

This report provides a detailed traffic engineering assessment of the parking and traffic issues

associated with the proposed development.


G22516R1C Page 2

2 Existing Conditions

2.1 Location

The subject site is located on the south‐western corner of the intersection between Jells Road and

Ferntree Gully Road in Wheelers Hill. A locality plan is shown in Figure 1.

Figure 1: Locality Map

2.2 Subject Site and Use

The subject site is irregular in shape and made up of two parcels of land, 161‐169 Jells Road and 171

Jells Road. The site at 171 Jells Road is currently occupied by a 60 bed aged care facility with 29 on‐site

car parking spaces and access provided via a double crossover to Jells Road.

No. 161‐169 Jells Road was formally the City of Monash service depot but is currently vacant.

Crossovers are currently provided to the site from Ferntree Gully Road and Jells Road, albeit they are

not currently used. The northern boundary of 161‐169 Jells Road currently provides an indented bus

stop servicing routes 693 and 753.

Reproduced with Permission of Melway Publishing Pty Ltd

Subject Site


G22516R1C Page 3

2.3 Existing Permit

The current permit for the site at 161‐169 Jells Road (Permit TPA/37762/ C Extended) allows for the

development of the site for the purposes of “131 dwellings within 4 separate buildings (up to 4 storeys

in height) basement car parking for 191 spaces, a reduction of car parking requirements and alteration

to the access to a Road Zone – Category 1.”

The plans and permit included the provision of access to the development via Ferntree Gully Road via

two separate crossovers described as follows:

An ingress crossover located toward the eastern boundary of the site (east of the existing bus

stop) was to provide entry movements through a one‐way westbound porte cochere linking to

the basement car park ramp at the western boundary; and

A second crossover was located adjacent the site’s western boundary, which was required

through the permit conditions to be restricted to left‐out movements only.

2.4 Planning Scheme Zones & Surrounding Uses

The subject site is zoned as General Residential – Schedule 2 under the Monash Council Planning

Scheme. A zoning map is provided in Figure 2.

Figure 2: Zoning Map

Land use in the vicinity of the site is predominantly residential. The property immediately to the east

is public park and recreation land in addition to the Wheelers Hill Library and Monash Gallery of Art.

Land immediately west of the site is being developed as a residential development.

This site is located proximate to the Wheelers Hill Shopping Centre, which is approximately 400 metres

to the south. This centre provides access to a wide range of everyday services such as supermarkets,

banks, restaurants, specialty shops and medical centres.

Subject Site

Source: http://services.land.vic.gov.au/maps/pmo.jsp


G22516R1C Page 4

2.5 Road Network

Ferntree Gully Road is a state arterial road running between Dandenong Road in the west and

Burwood Highway to the north‐east, where it continues further north as Commercial Road. In the

vicinity of the subject site, Ferntree Gully Road has a carriageway width of approximately 25 metres

which provides for three lanes of traffic in both directions.

A posted speed limit of 80 km/h applies along Ferntree Gully Road in the vicinity of the subject site.

Jells Road is a state arterial road running between Wellington Road in the south and Waverley Road

to the north. In the vicinity of the subject site, Jells Road provides a divided carriageway with a width

of approximately 16 metres which provides for two lanes of traffic in both directions.

A posted speed limit of 60 km/h applies along Jells Road in the vicinity of the subject site.

Figure 3 to Figure 6 illustrate the surrounding road network.

Figure 3: Ferntree Gully Road ‐ View East Figure 4: Ferntree Gully Road ‐ View West

Figure 5: Jells Road – View South Figure 6: Jells Road – View North


G22516R1C Page 5

2.6 Sustainable Modes of Transport

The site has access to bus services via the existing indented bus stop on the site’s northern abuttal on

Ferntree Gulley Road (servicing Routes 693 and 753).

Table 1 summarises the available services, whilst Figure 7 illustrates the nearby routes.

Table 1: Public Transport Services in the Vicinity of the Subject Site

Service Route Distance to Node

Metropolitan Bus Services

Route 693 Belgrave ‐ Oakleigh Ferntree Gully & Brandon Park

Ferntree Gully Road site abuttal

Route 753 Glen Waverley ‐

Bayswater Wheelers Hill, Knoxfield

& Boronia Ferntree Gully Road site

abuttal

Route 754 Rowville – Glen

Waverley Caulfield Grammar &

Wheelers Hill ~400m at Wheelers Hill

Shopping Centre

Route 804 Dandenong ‐ Chadstone Wheelers Hill & Oakleigh ~400m at Wheelers Hill

Shopping Centre

Figure 7: PTV Public Transport Map – Monash Source: Public Transport Victoria

Subject Site


G22516R1C Page 6

3 Proposal

3.1 Description

The application proposes to develop the site at 161‐169 Jells Road for the purposes of expanding the

existing aged care facility which currently occupies 171 Jells Road.

The development will ultimately consist of 262 beds across the two buildings (an increase of 202 beds

from existing).

3.2 Car Parking

The new building will be constructed with a 2 level underground car park providing a total of 108 on‐

site car spaces, inclusive of 7 DDA bays.

The 30 spaces provided at 171 Jells Road are to be maintained post development and access to that

site (including loading arrangements) will remain as per the current arrangements.

That is a total of 137 car spaces will be provided across both sites in addition to parallel drop‐off/pick‐

up areas within a ground level porte cochere.

3.3 Access Arrangements

The application proposes that primary access to on‐site parking be provided via a two‐way western

crossover. An extension to the existing indented bus stop is proposed to provide for a formal left‐turn

deceleration lane into the site and allow both left‐in/left‐out movements via the western crossover.

The proposal also includes the provision of an ingress to the on‐site porte cochere at the eastern end

of the deceleration lane. The porte cochere is intended to service patient pick‐up/drop‐off only.

A functional layout plan of the proposed deceleration lane has been included in Appendix A.

3.4 Bicycle Parking

The application proposes the provision of 38 bicycle spaces in the lower ground floor level car park.

3.5 Loading Arrangements

A dedicated on‐site loading bay is proposed within the first basement level at 161‐169 Jells Road to

serve the new building and waste collection for the residential development. The loading area is

intended to cater for the 6.4 metre small rigid vehicle (SRV) under AS2890.2:2002.


G22516R1C Page 7

4 Car Parking Considerations

4.1 Statutory Parking

The statutory car parking requirements for the proposed development are set out under Clause 52.06‐

5 of the Monash Planning Scheme.

For residential aged care, the Scheme specifies a parking rate of 0.3 car spaces to each lodging room.

Application of this rate to the proposed development (262 rooms) results in a statutory requirement

to provide for 78 car spaces.

The application proposes the provision of 137 car spaces inclusive of 108 spaces at 161‐169 Jells Road

and 29 existing spaces at 171 Jells Road, exceeding the statutory car parking requirement. To this end,

the application does not seek a waiver or a permit for car parking.

Parking will be available for staff and visitors of the proposal.

The provision of DDA compliant parking is intended to meet the BCA requirements.

4.2 Car Parking Layout & Access Arrangements

The car park layout and access arrangements have been developed with design advice provided to the

project architect (CHT Architecture) and is considered to principally meet the relevant requirements

of the Monash Planning Scheme and where applicable, the Australian Standard for Off‐Street Parking

(AS2890.1:2004).

A review of the car park layout reveals:

Standard car spaces have been provided with minimum dimensions of 2.6 metres wide, 4.9

metres deep and are accessible from aisles 6.4 metre wide, exceeding the requirements of Clause

52.06 of the Planning Scheme.

DDA parking bays have been provided in accordance with the requirements of AS2890.6:2009.

The dedicated bay and shared area have been dimensioned at a minimum width of 2.4 metres,

minimum length of 5.4 metres and provided with a minimum headroom clearance of 2.5 metres.

Blind aisles have been appropriately extended to provide for convenient access to end spaces.

A parallel parking bay in the porte cochere is dimensioned at 2.6 metres wide, 5.9 metres long

and is accessible from a 5.4 metre wide aisle which exceeds the requirements of AS 2890.1:2004.

It is noted that there is sufficient spaces around the bays to also meet the requirements of Clause

52.06‐08 (Design Standard 2).

Ambulance/patient transfer bays are proposed within the porte cochere which are provided with

a width of 3.7 metres and length of 7.0 metres which will accommodate a conventional

Ambulance Victoria Vehicle.

Additional height clearance of minimum 2.9 metres should be provided in areas trafficked by

ambulance vehicles. The height clearance provisions within the first underground parking/loading

area will also accommodate ambulance vehicles.


G22516R1C Page 8

Columns are sited within 0.25‐1.25 metres from the aisle end of car spaces in accordance with the

Planning Scheme car parking envelope to allow for access into and out of spaces

Access to the car park and loading area will be shared via a common driveway with a width of 6.1

metres, which exceeds the requirements for a two‐way accessway under AS2890.1 and Clause

52.06. Vehicle access along the internal ramps have been tested for B99 design vehicles

manoeuvring and/or passing where required.

A maximum grade of 1 in 12 is provided for the first 5 metres within the subject site which meets

the requirements of Clause 52.06‐9 (Design Standard 3).

A maximum grade of 1 in 6.5 is provided with appropriate transitions to prevent vehicle scraping

or bottoming for a small rigid vehicle in accordance with AS2890.2‐2002.

Gradients within the porte cochere have been appropriately designed to allow for vehicle

accessibility and cross‐falls.

Swept path analysis has been undertaken for a 6.4 metre small rigid vehicle (SRV) accessing the

on‐site loading bay, attached in Appendix B. Sufficient space is available for the vehicle to enter

and exit in a forward direction.

The porte‐cochere has been designed based on swept paths for a standard ambulance vehicle

(6.05 metres long).

Where parking is on a grade, the gradient does not exceed 1 in 16 (perpendicular to the grade) in

accordance with AS2890.1:2004.

A pedestrian sight triangle is available at the egress side of the driveway to Ferntree Gully Road if

the landscaping/pathway within the 2 metre x 2.5 metres sight triangle is provided with a

maximum height of 900mm, as per Clause 52.06‐8.

Based on the foregoing, the car park layout and access is considered satisfactory.


G22516R1C Page 9

5 Traffic Considerations

5.1 Existing Traffic Conditions

To understand the existing traffic conditions in the vicinity of the subject site, Traffix Group collected

VicRoads SCATS data for the signalised intersection of Ferntree Gully Road and Jells Road, to determine

the volumes of traffic along the sites frontages.

The SCATS data identifies that Ferntree Gully Road carries in the order of 3,800 vehicles two‐way in

the commuter peak hour, with a bias to the westbound in the morning period and to the eastbound in

the afternoon period.

Aged care developments typically generate traffic during early afternoon periods when staff change

over (typically 2pm‐3pm). During this time, Ferntree Gully Road carries in the order of 2,300 vehicles

two‐way with a bias to westbound movements.

The peak period for analysis of the existing road network is therefore considered to be during the

commuter peak hours.

5.2 Traffic Generation & Impact

It is unlikely that the residents of the proposed residential aged care facility will own a car. Accordingly,

traffic generated by the development will typically be associated with staff, service vehicle and visitor

trips. As there is to be no change to the car parking facilities associated with 171 Jells Road, the

assessment of the traffic generation of the proposal has been associated with the additional beds

provided with parking accessed via Ferntree Gully Road.

The RTA Guide to Traffic Generating Developments, 2002 provides guidance on traffic generation for

various land‐uses including Housing for Aged and Disabled Persons facilities. In relation to this use, the

RTA Guide species a daily rate of 1 to 2 vehicle trips per dwelling/bed with a peak hour generation of

around 0.1 to 0.2 movements per dwelling/bed.

Case study data collected by Traffix Group shows peak commuter generation rates of around 0.1

movements per bed. At change over peak (2pm‐3pm) higher rates of around 0.47 were recorded.

Adopting a conservative rate of 0.2 movements per bed in commuter peak hours and 0.5 movements

per bed in the changeover peak, suggests a peak generation of 40 vehicles per hour in the commuter

periods and 101 vehicles per hour between 2pm‐3pm.

This level of traffic is considered to be low in traffic engineering terms, equivalent to a single trip

generated every 1.5 minutes in the commuter peak and 1 trip per 35 seconds in the changeover peak.

All movements will be left‐in/left‐out to Ferntree Gully Road.

It is assumed that traffic will be split approximately evenly between vehicles generated inbound and

outbound and to the east and west. That is, in any one direction, the application could generate up to

10 additional vehicle movements, or an average of approximately 1 movement every 6 minutes in the

commuter peak and 26 additional vehicle movements, or an average of 1 movement every 2.3 minutes

in the changeover peak.


G22516R1C Page 10

This level of traffic generation to Ferntree Gully Road relates to an increase of approximately 1% during

the commuter peaks and an increase of approximately 4.5% during the changeover peak.

The existing permit was approved with a total of 131 apartments provided on site. Residential use for

this site would typically be a higher traffic generator than the aged care use during commuter peak

hours. It is expected that this level of development would have generated a higher level of traffic

during the commuter peak hours than the proposal and therefore the overall impact of the proposal

would be reduced when compared with the existing approval.

In consideration of the existing traffic volumes on the surrounding road network, the existing permit

and the traffic projected to be generated, it is expected that the proposed development can be

acceptably accommodated without material impact to the current performance or operation of

Ferntree Gully Road, the median breaks to the west and the intersection of Jells and Ferntree Gully

Road.

5.3 Access Design

The majority of traffic generated by the proposal will be to the western crossover and access will be

facilitated by the provision of a formal left turn deceleration lane.

The lane will have a length of 70 metres. This complies with the Austroads Guide to Road Design Part

4A requirements for a short auxiliary left turn (AUL(S)) deceleration lane for a road with a speed limit

of 80km/h (assuming a 20% speed reduction in calculating the total length required).

It is noted that the start of the taper of the lane is approximately 20 metres from the pedestrian

crossing at the signalised intersection, and 30 metres from the Jells Road carriageway. Any further

lengthening of the left turn deceleration lane would reduce this separation. In this regard, the

provision of an AUL(S) is considered appropriate for the proposal having regard to the constraints of

site.

We note that the existing approval allows for the provision of all ingress via a crossover east of the

existing bus stop without the provision of a deceleration lane. The proposal intends to maintain an

ingress crossover to allow access to the porte cochere, however the level of traffic generation to this

entry point will be significantly lower than what would have been generated by the existing approval.

The concentration of primary ingress and egress to the western crossover, away from the existing

signals at Jells Road/Ferntree Gully Road, and the provision of a formal left turn deceleration at this

location will be an improvement from the current approval.

In this regard, the proposed access arrangements are considered appropriate and would provide for

an acceptable outcome having regard to traffic impacts on Ferntree Gully Road, particularly when

considering the current approvals for access.


G22516R1C Page 11

6 Bicycle Parking Considerations

The statutory bicycle parking requirements for the proposed development are set out at Clause 52.34

of the Monash Planning Scheme. The rates of Clause 52.34 relate to new uses or extensions of existing

uses stating:

‘Where the floor area occupied by an existing use is increased the requirement for bicycle facilities

only applies to the increased floor area of the use.’

As such the required bicycle parking rate only relates to the additional bed provided as part of the

proposal. A summary of the requirements under Clause 52.34 for the 202 additional beds is provided

at Table 2.

Table 2: Clause 52.34 Statutory Bicycle Parking

Use No. / Type Required Rate Requirement

Aged Care Employee 1 to every 7 beds 29 Spaces

Visitor 1 to every 60 beds 3 Spaces

Total 32 Spaces

Based on the preceding the proposal has a requirement to provide for 32 bicycle spaces comprising 29

staff spaces and 3 visitor spaces.

The development currently shows the provision of 38 bicycle spaces provided within the lower ground

car park. These provisions accord with the minimum requirements under Clause 52.34 of the scheme.

Bicycle parking has been provided in accordance with the Bicycle Network guidelines with a mix of

vertical and horizontal rails as follows:

Wall mounted vertical rails are dimensioned at 1.2 metres deep spaces, 0.5 metres spacings, and

are accessible from an aisle 1.5 metres wide; and

Horizontal rails are provided with dimensions of 1.8 metre length and spaced at 1.0 metre centres,

accessible from a 1.5 metre aisle.

Clause 52.34 specifies that where parking is provided for staff, shower and changeroom facilities

should be provided at a rate of 1 shower/changeroom for the first 5 staff spaces, and then 1 per 10

staff spaces thereafter.

There is provision for male and female change rooms at lower ground level within the new building

which will satisfy the Clause 52.34 requirements.


G22516R1C Page 12

7 Loading Considerations

Under Clause 52.07 there is no trigger to provide a loading bay for an aged care facility land use.

However a purpose built loading bay is to be provided within the basement undercover car park and

will accommodate waste collection and loading vehicles.

Clause 52.07 sets out the minimum dimensions required for the loading provision as follows:

Table 3: Clause 52.07 Minimum Loading Bay Requirements

Floor Area of Building Minimum Loading Bay Requirements

2,600 sq m or less in single occupation

Area

Length

Width

Height Clearance

27.4 sq m

7.6 m

3.6 m

4.0 m

For every additional 1,800 sq m or part Additional 18 sq m

The purpose built loading bay is provided with a total area of approximately 88 square metres and a

width of 12.7 metres. The loading bay length and height clearance have been provided in compliance

with the requirements of AS2890.2‐2002 for a small rigid vehicle (SRV).

Deliveries and waste will be undertaken by a Waste Wise Mini Loader and vehicles up to 6.4 metres in

length.

Bins will be transferred from the refuse store to the collection point prior to the arrival of the service

vehicle. Service vehicles will arrive and depart the site from Ferntree Gully Road in a forward direction.

Swept paths, attached at Appendix B have been prepared to demonstrate that an SRV and a mini

waste‐wise vehicle can satisfactorily access the loading bay and depart the site in a forwards direction.

In view of the foregoing, the layout and access arrangements of the proposal have been satisfactorily

designed to meet the loading and waste requirements of the application.


G22516R1C Page 13

8 Conclusions

Having undertaken a detailed traffic engineering assessment of the proposed aged care extension at

161‐169 Jells Road & 171 Jells Road Wheelers Hill, we are of the opinion that:

a) the proposed development has a statutory car parking requirement of 78 car spaces under Clause

52.06‐5 of the Planning Scheme and the provision of 137 car spaces exceeds the statutory

requirement,

b) the proposed parking layout and access arrangements accords with the requirements of the

Planning Scheme, AS2890.1:2004 (where relevant) and current practice,

c) the level of traffic generated as a result of this proposal is acceptable and will not have a

detrimental impact on the surrounding road network,

d) bicycle parking is provided in accordance the requirements set out at Clause 52.34 of the Planning

Scheme,

e) although there is no requirement to provide a loading bay one has been provided within the site

generally in accordance with Clause 52.07,

f) there are no traffic engineering reasons why a planning permit for the proposed aged care

extension at 161‐169 Jells Road & 171 Jells Road Wheelers Hill, should be refused, subject to

appropriate conditions.


G22516R1C

Appendix A Functional Layout Plan


G22516R1C

Appendix B Vehicle Swept Paths

traffic engineering assessment - monash council · is public park and recreation land in addition...

Documents