Abstract
Many urban road networks are equipped with vehicle detectors that enable traffic signals to respond to actual traffic demand, thereby improving traffic flow and reducing delay to motorists. An Urban Traffic Control (UTC) system, such as SCOOT, which continuously monitors the movement of vehicles over detectors, provides a wealth of information which is yet to be fully exploited. This paper explores the possibility of using vehicle detector data for the purpose of detecting incidents in an urban road network. Data obtained from SCOOT installations analysed, together with simulated data from the MULTSIM microscopic traffic simulation model.