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Chapter 11 - Sedibeng District Municipality

Chapter 11 - Sedibeng District Municipality

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The importance of Routine Road Maintenance is generally underestimated in the<br />

preservation of the road infrastructure asset. Inadequate road maintenanc e<br />

increases the cost of repair 6-fold if proper maintenance is delayed for three years,<br />

and 18-fold if proper maintenance is delayed for five years. Further, when a road is<br />

not maintained and is allow ed to deteriorate from a good to a very poor condition,<br />

each rand saved on road maintenance increases vehicle operating costs by between<br />

R2/km and R3/km.<br />

(c)<br />

Strategy<br />

Routine Roads Maintenance<br />

The South African National Roads Agency Limited (SANRAL) in September 2008<br />

published the Routine Road Maintenance Manual. The content of this Manual applies<br />

also to <strong>Sedibeng</strong>.<br />

SANRAL recently revised its Routine Road Maintenance Guidance Manual (2000).<br />

The revised Manual (2008) is based on feedback and lessons learnt from Engineers,<br />

Route Managers, Contractors and Sub-contractors on routine road maintenanc e<br />

contracts over the last decade.<br />

The primary objective of the Routine Road Maintenance Manual is a tool to guide the<br />

Site Management Team (Client, Consultant and Contractor) in the efficient<br />

management of the routine road maintenance contracts, accurate identification of<br />

problems / shortcomings, selecting appropriate and cost effective actions and / or<br />

repair methods, and maintaining the functions integrity of the road netw ork.<br />

SDM w ill take corrective action not only to promote a safe and efficient road netw ork,<br />

but also to protect the environment in its jurisdictional area by encouraging its Local<br />

Municipalities to adhere to the requirements and guidelines contained in the Routine<br />

Road Maintenance Manual published by SANRAL in September 2008.<br />

Warrants for Upgrading Roads<br />

This section contains some criteria or w arrants about w hen to apply road<br />

maintenance. The primary source document used is TMH 9: 1992. Pavement<br />

Management Systems: Standard Visual Assessment Manuel for Flexible Pavements,<br />

dated December 1992. The practices expressed in this document are particularly<br />

relevant to a rural area context.<br />

Below is a description or general rating of the overall condition of the pavement.<br />

Degree<br />

Very good<br />

Good<br />

Fair<br />

Poor<br />

Very poor<br />

Description<br />

Very few or no defects. Degree of defects < 3 (less than w arning).<br />

Few defects. Degree of structural defects mostly less than w arning.<br />

A few defects with degree of defects seldom severe. Extent is only<br />

local if degree is severe (excluding surfacing defects).<br />

General occurrence of particular structural defects with degrees<br />

warning to severe.<br />

Many defects. The degree of the majority of the structural defects is<br />

severe and the extent is predominantly general to extensive.<br />

Below is a discussion of the possible treatments on a road segment.<br />

SDM DITP, 2008 to 2013 142 31 Aug 2010

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