DR HERMAN JOUBERT4 JULY 2016

PRACTICAL ROAD MASTER PLANNING

DAILY IMPROVEMENT IS BETTER THAN DELAYED PERFECTION

A large backlog has formed in the provision of road infrastructure in urban areas

The development of functional and efficient road networks as essential

component of the transport system in urban areas in South Africa is constrained and complicated by the large backlog that

has developed in the provision of road infrastructure, particularly arterial roads

that are required to provide mobility

CONTENTS•Statutory framework•Historic development of towns

•Layout considerations•Operational considerations•Management considerations•Funding

Originally Wickquasgeck trail carved in the brush of Manhattan by Native Americans

Became part of Manhattan one-way street system

Broadway New York USA Permanent nature of roads

2008/2009 traffic lanes converted to public plazas, bike lanes added and portions closed entirely to

automobile traffic (except cross traffic)

STATUTORY FRAMEWORK• CONSTITUTION

• A Municipality has the right to govern on its own initiative the local government affairs of its community (Residents, business, visitors)

• Municipal planning (Schedule 4)• Municipal roads (Schedule 5)

• MUNICIPAL SYSTEMS ACT• Service delivery• Integrated Development Plan

• NATIONAL LAND TRANSPORT ACT (NO 5, 2009)• NLTTA focused on public transport• Integrated Transport Plans are designed to give

structure to the function of municipal planning (Constitution) and must be accommodated and form an essential part of integrated development plans

HISTORIC GROWTH OF TOWNS• FUNCTIONS

• Serve farming community and some industries• Provide social and government functions at local and

regional level (education, judicial, police, medical, administrative)

• Centroid connected by provincial roads• OUTCOME

• Heavily dependent on national and provincial arterials• Traffic generators with direct access to arterials• Historically low through traffic, now large volumes of

through traffic, including freight and heavy trucks that overnight in towns

• Many businesses still rely on exposure to through traffic• Negative impact on central business areas

JOHANNESBURG & PRETORIA DURING THE 1960’S

• North-south traffic through the central parts of the city

• Replaced by by-pass roads• Emerging ring roads (USA metropolitan areas and Beijing)

BY-PASS ROADS HAVE A DEVASTATING IMPACT ON THE ECONOMIC ACTIVITY IN SMALLER TOWNS

LAYOUT CONSIDERATIONS

• CONTINUITY OF ARTERIAL ROADS• Existing layout• Topographic and environmental constraints

• TRAFFIC CONTROL• Traffic signal control (> 1200 vehicles / hour)• Controlled crossing of pedestrians

• INTERSECTION SPACING• Retrofit impossible (Beaufort West)• One-way systems (Polokwane)

• MANAGE ACCESS TO MAJOR TRIP GENERATORS

• DIVERT THROUGH TRAFFIC

TLOKWE ROAD MASTER PLAN

Long term by-passUrban arterial networkContinuity

MATLOSANA ROAD MASTER PLAN

• Long term by-pass• Note linear growth

along mobility corridor

MATLOSANA LOCAL ACCESS MANAGEMENT PLAN

KNYSNA BY-PASS PLANNING

KNYSNA BY-PASS PLANNING

POLOKWANE ONE-WAY SYSTEM AND N1 BY-PASS ROAD

OPERATIONAL CONSIDERATIONS

• Remove on-street parking along arterials

• Restrict turning movements• Accommodation of freight transport (provide stop and rest areas)

• Public transport facilities (Stop / rank / hold)

MANAGEMENT CONSIDERATIONS

• IMPLEMENTATION OF ARTERIAL ROUTES• Example: Expansion of Mimosa Centre in Mangaung (Bloemfontein)

• Co-operation between Municipality and developer to resolve 20 year issue

• ACCESS THROUGH MY NEIGHBOUR’S PROPERTY

• INTEGRATION BETWEEN MUNICIPAL AND PROVINCIAL / NATIONAL ROADS• Access to towns versus access to properties: a balancing trick

MC HARDY / KELLNER CORRIDOR MIMOSA MALL MANGAUNG

MC HARDY / KELLNER CORRIDOR MIMOSA MALL MANGAUNG

FUNDING

• Integrated Development Plan – Municipal budget

• Engineering service contributions – developers should provide infernal roads and contribute to mitigate the impact of the increased traffic load on the municipal major (external) road network (TMH 15)

CONCLUSIONS

• Road Master Planning is an essential part of integrated development planning

• Roads have long term impact and road planning requires a long term view

• Creating continuous mobility corridors in historic towns is a major challenge and should follow an inter-disciplinary approach

• The development of municipal road networks should be addressed at the following levels:• Planning – Layout• Operational – Traffic management• Management of implementation

• Implement engineering service contributions as part of the municipal rates policy