Total project management, from concept design to continuing operation and maintenance, is critically important in optimising adaptive traffic signal control systems. This article describes examples of the use of this approach in Indonesia and the Philippines. AWA Plessey applies this approach to provide comprehensive, state-of-the-art traffic solutions on time and within budget. One organisation co-ordinates all services: finance, design, engineering, construction, commission, training, maintenance, and warranty. A good example is AWA's recent turnkey installation in record time of a new automatic traffic management system (ATMS) in Bandung, Indonesia. This system was desperately needed because of Bandung's chronic traffic congestion and poor driving conditions. The ATMS uses the SCATS system which automatically adapts to current traffic demand. 135 sets of traffic signals were installed, 55 of which were new and 80 of which were upgraded from existing signals. A fully equipped traffic control room was set up, and a comprehensive training programme was provided. A similar SCATS system was installed in Manila from 1995 on, to co-ordinate traffic flow between all of its 419 junctions. Urban SCATS systems world-wide now control over 10,000 signals and have been much quicker and easier to install than other ATMS systems.
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