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Chapter 11 - Sedibeng District Municipality

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• keeping of records of all activities and inventory controls;<br />

• budgeting for new installations, maintenance and repair as w ell as controlling<br />

such budgets;<br />

• installation, maintenance and repair of all traffic signal equipment, including<br />

controllers and computers;<br />

• planning and scheduling of traffic signal installation, upgrading, modification,<br />

maintenance and repair;<br />

• management, supervision and control of installation and maintenance<br />

contracts undertaken by private contractors;<br />

• inspection of installations during various stages of completion and final<br />

acceptance on contract completion;<br />

• investigations into new developments in the discipline of signalisation;<br />

• providing advice to traffic engineers on the capabilities and limitations of traffic<br />

signal equipment;<br />

• planning and implementing maintenance and upgrading programmes.<br />

Developing procedures for the establishment of maintenance and upgrading<br />

priorities;<br />

• training of personnel in all electrical and electronic related aspects of traffic<br />

signals;<br />

• appearing as expert w itnesses in litigation involving the electrical and<br />

electronic aspects regarding operation and maintenance of traffic signals.<br />

New Signals Installations and Removals<br />

All of the follow ing steps are to be part of the installation process:<br />

• candidate site identification;<br />

• warrant study;<br />

• signal design;<br />

• signal installation; and<br />

• commissioning.<br />

The follow ing procedure should be follow ed w hen removing traffic signals:<br />

• information is to be provided to the public for 2 weeks prior to the removal<br />

procedure commencing;<br />

• signals are to be placed in a flashing mode for 1 or 2 days;<br />

• implement new form of control and mask traffic signals for a period of at least<br />

7 days;<br />

• undertake a w arrant study during this stage to re-confirm the removal process;<br />

and<br />

• remove traffic signals w ith any road and information signs.<br />

Maintenance Actions<br />

Although to a certain extent obvious, it is prudent to re-visit the consequences of<br />

maintenance deficiencies as it is listed in the South African Road Signs Manual:<br />

• the cost-effectiveness of good signal maintenance is beyond question. The<br />

traffic safety implications of malfunctioning traffic signals alone can justify the<br />

cost of keeping signals in proper w orking order;<br />

• the possibility of liability judgements against a road authority is also an<br />

important consideration in signal maintenance. Proper maintenance of traffic<br />

signals is of vital importance if liability is to be minimised;<br />

SDM DITP, 2008 to 2013 137 31 Aug 2010

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