W Johnson

Framework Traffic Management for Shared Zones in Large Private EstatesAITPM 2014 National Conference

Presented by : Wayne JohnsonSenior Project ManagerGTA Consultants [email protected]

Introduction• Large private estates include:

• retirement villages • industrial estates • sporting venues and • tourism precincts

• Contains Internal Road Networks• Shared road environment• Shared Zone users:

• Pedestrians and Cyclists• Mobility Scooters• Cars• Delivery and maintenance

vehicles

Introduction• Inconsistency in shared

road treatments

• Causing confusion and misinterpretation of road rules

• Framework traffic management plan - provides best practice guidance .

Characteristics of Large Private Estates• Road Network & Access

• Estates with single access point• Controlled access• Contributes to changed driver behaviour

• Intersection Configuration• Minimal to no controls

used• Unclear priorities• Inconsistent treatments

• Intersections which appeared to operate best contained• No indication of priority• Repeater speed signs• Clear sight lines• No on-road markings• Clear way finding

signage

Characteristics of Large Private Estates

• Local Area Traffic Management (LATM) measures

• speed humps• pedestrian crossings

etc• LATM measures vary

significantly

• Non-standard signage

• A consistent approach is required

Characteristics of Large Private Estates

• Pedestrian Facilities• Variety of treatments• Do not comply with Australian

Standards• Some crossings direct

pedestrians into traffic flow

Characteristics of Large Private Estates

Road Users

Typical Safety Issues

• The RMS Guide to Traffic Generating Developments

• Example:• Housing for aged and disabled person

• 1-2 trips per dwelling per day• 0.1-0.2 trips per dwelling per evening peak hour

• Car parking requirements• 2 spaces per 3 units (residents) and • 1 space per 5 units (visitors)

• Example - retirement village of 600 dwellings• 1200 trips per day; 120 trips per evening peak hour• 400 resident plus 120 visitor parking spaces

Traffic and Car Parking Generation

Shared Zone Practice & Principles

The principle objective of a Shared Zone is to provide an area where the speed of vehicles is at a walking pace, so that they constitute the minimum threat to pedestrians sharing the space.

Conditions of use for Shared Zones are outlined by Austroads and State/ Territory guidelines

• Shared Zones have been in Australia for a considerable period of time and are well documented in both historic and modern guidelines

Shared Zone LegislationNational Best Practice

• Austroads Guide to Traffic Management, Part 8: Local Area Traffic Management

• Shared Zone is declared by the use of regulatory signage.

Shared Zone Legislation

New Zealand Signage

• Commonality amongst the Shared Zone guidelines

• Priority to pedestrians• Safety for pedestrians• Speed limits of 10km/hr• Entry treatments• Restricted car parking and

loading requirements• Approval from road authority required.

Shared Zone Legislation

Purpose: to provide a framework of guidance for the planning, design and management of the traffic and transport environment within private residential,

industrial and tourism/recreational precincts.

Frame Traffic Management Plan

• Pedestrian priority• Self enforced speed• No separation of pedestrian

paths• Strictly marked parking bays• For locations where traffic

>50 vph:• Vehicle priority• Traffic calming devices• Separated pedestrian

routes

Road Design

• It is recommended that all entries to a Shared Zone feature an ‘entry treatment’ providing drivers with visual cues for the changed traffic conditions.

Entry Treatments

Traffic Calming

Preferred Option(Ideal)

*Regularly spaced LATM or curved road alignment*Landscaping*Pavement colour/ texture*No linemarking or kerbs

*Regularly spaced LATM or curved road alignment*Landscaping*Pavement colour/ texture*No linemarking or kerbs

Alternative Option

(Some Separation)

*Separated pedestrian paths and kerbs*Street narrowing*Landscaping*Pavement colour/ texture

*Regularly spaced LATM or curved road alignment*Landscaping*Pavement colour/ texture*No linemarking or kerbs

General Guidance

*Traffic islands and street narrowings are preferred, avoid raised thresholds

*Maximum spacing between LATM should be 50metres on a straight road.

*Limited formal traffic control required

*Seating, landscaping and flush pavements to properties will emphasize the shared street space

*Bollards may be used.

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Intersection Design

Signage and Linemarking

• Simplified and uniform scheme

• Follow public street practices

• Uniform Colour (White)

• Standard provision for disability access is detailed in AS/ISO 1428.1-2009 Design for Access and Mobility, General Requirements

DDA and Mobility Access

• On-street parking • Reduces sight

distances • Reduces safety

for pedestrians• Traffic Calming

• Marked Bays in Shared Zones

Car Parking

• Access for emergency vehicles• emergency vehicle widths• turning circles • reporting procedures • contact information

• Clear way-finding signs

• Building numbering

• Consult state fire services for requirements

Emergency Response

• Self enforcing Shared Zones

• Consistent features

• Distinctive features

• Clear signage

• Pedestrian friendly

• Minimum intersection controls

• Follow National/State Standards

Conclusions

Thank you!

Any Questions?

[email protected]