Japan’s Traffic Signal

With rapid technological development in recent years, personal computers are finding a wider scope of application in road traffic control systems. However, personal computers have not yet been used in traffic signal control that must be used in real time. By reconsidering a network configuration involving a host computer and terminals to alleviate greater restrictions accompanying real-time control, Sumitomo Electric has successfully constructed a highly cost-efficient, personal computer-based road traffic control system for the first time in Japan. The new system is called the UC model which is a UTMS(Universal Traffic Management Systems) Compact traffic control system model: a new traffic management system advanced by the National Police Agency to implement the ITS. At the same time, we have fully incorporated MODERATO(Management by Origin-Destination Related Adaptation for Traffic Optimization) as a new traffic control technique. (author abst.)