Title

EXTENSIONS AND NEW APPLICATIONS OF THE TRAFFIC-RESPONSIVE URBAN CONTROL STRATEGY: COORDINATED SIGNAL CONTROL FOR URBAN NETWORKS

Document Type

Journal Article

Publication Date

2003

Subject Area

operations - coordination, operations - traffic, infrastructure - bus/tram priority, infrastructure - bus/tram priority, infrastructure - traffic signals, ridership - commuting, place - urban, mode - bus

Keywords

Urban areas, Traffic simulation, Traffic signal networks, Traffic signal coordination, Traffic signal control systems, Traffic responsive urban control, Tel Aviv (Israel), Synchronization (Traffic signals), Saturation flow, Real time control, Microsimulation, Linked signals, Jerusalem (Israel), Jerusalem, Interconnection (Traffic signals), Computer controlled signals, Bus priority, Automatic traffic signal control, AIMSUN (Computer model)

Abstract

The objectives, approach, advantages, and some application results of recent extensions of the traffic-responsive urban control (TUC) strategy are presented. Based on well-known methods of the automatic control theory, TUC allows for traffic-responsive coordinated signal control of large-scale urban networks that is particularly efficient under saturated traffic conditions. The first version of the TUC strategy controlled only the green splits. After initial development and the first field implementations and evaluations, TUC was expanded to perform real-time cycle and offset control, and to allow for public transport priority. Simulation investigations of the extended TUC application in parts of the urban networks of Tel Aviv and Jerusalem, Israel, by use of the AIMSUN microscopic simulator demonstrate the high efficiency of the new signal control strategy.