Urban Traffic Control

Alicia Parkway corridor, located in Orange County, California, was part of Phase 1 of an inter-jurisdictional Traffic Light Synchronisation Programme (TLSP) in Orange County designed to increase mobility and overall drive quality while reducing fuel consumption and greenhouse gas emissions. By increasing average speeds and reducing travel times via the reduction in stops, the programme sought to reduce vehicle acceleration and deceleration events along the corridor; these have been identified as the leadin

Hugh Colton, Georgia DOT details move to improve urban traffic control in the Atlanta area. With a significant proportion of traffic using freeways and toll-ways, along with a significant investment in roadway infrastructure, urban arterials are often the poor relation when it comes to ITS investment. Hitherto the primary means of Urban Traffic Control (UTC) has been the ubiquitous traffic signal. Many traffic signals still operate in a standalone mode and traffic detection is often broken, leaving the sign

A new solution developed as a consequence of the UK's Freeflow project fuses GPS and UTC loop data to give more accurate predictions of journey times, benefting network managers and travellers alike. By Matt Cowley and Gareth Jones, Trakm8 and John Polak and Rajesh Krishnan, Imperial College London

As the technologies and stakeholders in traffic management evolve, what can we expect to see happening in the coming years? For many, the conversation of the moment is just how, and how far, the newer technologies and services provided principally by the private sector should be allowed to intrude into the realms of traffic management.

Urban traffic control is a well-defined and practised art. Nevertheless, there are technologies here and on the horizon with the potential to revolutionise how we do things. By Gavin Jackman and Andrew Kirkham, TRL, and Jason Barnes. Distributed monitoring and control of urban traffic networks and flows is nothing new. PC-based Urban Traffic Control (UTC) is now well established and operating in many locations around the world. However, it is worth considering the effects of the huge growth in the use of sm

I-95 Corridor Coalition's Tom Martin discusses the state of the art in incident management and what visitors to this year's ITS World Congress can expect of the first ever Emergency Responder-Incident Management Day. Developments in incident management are driven in the main by need. A bald statement, and one which holds no surprises, it nevertheless quantifies the evolutionary process within the I-95 Corridor Coalition over the last decade and more. Spread over 16 states from Maine to Florida, the Coalitio