REAL TIME TRAFFIC SIGNAL OPTIMIZATION CONTROL IN URBAN ROAD NETWORK

This paper describes a new method of optimally coordinating the traffic signal timings. The optimization is based on the information available from the vehicle detectors in urban road networks in Japan. The conventional methods are deficient in that the cycle length and the split are characterized only by the behavior of critical intersection, and offsets along a major road are chosen from a small set of prescribed patterns. In the first step of the proposed method, the cycle length and the split are obtained by minimizing the total traffic delay in a sub-area, which consists of a series of intersections. In the second step, the offsets are determined by maximizing the bandwidth that is the fraction of a cycle in which vehicles may pass through all intersections in the sub-area without stopping. The results of simulation experiments indicate that the proposed method reduces the queue length significantly in comparison with the conventional methods.

• Supplemental Notes:
  • Full Conference Proceedings available on CD-ROM.
• Corporate Authors:

  ITS America

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• Authors:
  • Oda, Toshikane
  • Kurata, K
  • TAJIMA, T
• Conference:
  • 9th World Congress on Intelligent Transport Systems
  • Location: Chicago, Illinois
  • Date: 2002-10-14 to 2002-10-17
• Publication Date: 2002

Language

• English

Media Info

• Pagination: 12p

Subject/Index Terms

• TRT Terms: Control systems; Intersections; Networks; Optimization; Real time information; Traffic queuing; Traffic signals; Urban highways
• Geographic Terms: Japan
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00960278
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 10 2003 12:00AM