Chapter 11 - Sedibeng District Municipality

• representatives of any other department that provide a service or w ho may be
affected by traffic signals.
The traffic signal committee w ould be responsible for overseeing the traffic signal
division and to ensure that traffic signals are installed and maintained w ith the highest
level of proficiency and responsibility. The committee may also assist with funding
and budget control. The committee w ould also be utilised as a liaison point betw een
the Municipal Police and Roads and Transport departments w here “problem areas” or
missing traffic signals are reported and progress on replacement of signals is given.
The committee should also review the geometric designs of all new road and junction
proposals in order to ensure adequate provision is made for possible future
signalisation.
Skills and Manpower Requirements
Traffic signal systems have become highly complex and intricate, requiring
increasingly w ider and more specialised skills of personnel involved w ith such
systems. The complexity can be expected to evolve even more in the future, w hich
will further increase the required skill levels. Such skill levels can more easily be
provided w hen different road authorities co-operate institutionally, providing an
integrated signalisation service.
A traffic signal division should preferably comprise of traffic- and electrical related
staff, i.e. :
• Professional Traffic Engineers / Technologists;
• Professional Electrical Engineers / Technologists;
• Qualified electricians;
• Electronic technicians;
• Line w orkers;
• Worker assistants; and
• Administrative staff.
Tasks of the Traffic Signal Division
Traffic Engineering Tasks:
• overall management of the traffic signal division, including budget control and
reporting;
• traffic data collection, including traffic volumes, speeds, saturation flow s,
accident rates, etc.;
• conceptual design and layout of signalised junctions;
• design of traffic signal layouts, timings, phasing, and the co-ordination of traffic
signals;
• warrant studies for the installation of new traffic signals;
• prioritisation of new installations and upgrading of existing installations;
• investigations into new traffic signal control systems;
• development of methods, procedures and standards.
Electrical- and Electronic Engineering Tasks:
• management, supervision and control of all aspects related to the electrical
and electronic side of traffic signals;
• management and control of personnel, material, spares and tools;
SDM DITP, 2008 to 2013 136 31 Aug 2010