The SCOOT Urban Traffic Control system is now operating in over 200 cities and towns worldwide. Since the system was installed there has been a continuous program of research and development to provide new facilities which take into account new technology and meet the requirements of the traffic manager. This paper reports on a new version SCOOT MC3 which has recently been released. SCOOT has been modified to use time-stamped data which allows for small time delays in communications between the UTC software and Outstation Transmission Units (OUT) whilst maintaining the excellent level of traffic control. This should increase range of communication options available and in particular allow the use of some of the newer data communications systems which are packet based. A congestion supervisor has been developed to afford the operator a better understanding of the congestion occurring in the network. This should enable the limited resources within local authorities to be used efficiently and facilitate the use of the extensive congestion management tools available in SCOOT. Other new developments affect how SCOOT operates in providing bus priority and in controlling puffin pedestrian crossings. (Author/publisher).
Samenvatting