TRAFFIC SIGNAL CONTROL BASED ON TRAVEL TIME INFORMATION FROM BEACONS

The goal of this research is to provide a fundamental methodology for updating signal parameters so as to minimize global delay based on vehicle travel times measured by traffic beacons, and to examine the method through a traffic simulation model. Generally, traffic signal parameters are determined so as to minimize global delay of vehicles passing an intersection. The communication through beacons is bi-driectional, which allows for on-line travel time information between two consecutive beacons from an equipped vehicle. Hence, delay can be measured directly through beacon information, and optimization of signal parameters can be better realized. First, based on the delay profiles obtained from the beacon information, a method is proposed to determine several key factors for the signal control, such as the saturation flow rate, the time duration of a queue, and so on. The objective function of aggregate delay is then defined as a function of signal parameters. Second, an algorithm of iterative optimization of signal parameters for an isolated intersection is proposed. Finally, the proposed algorithms are examined through an object-oriented traffic simulation model applied to an isolated intersection and the performance of the proposed method is analyzed in relation to the percentage of equipped vehicles.

• Supplemental Notes:
  • Five volumes of papers and one volume of abstracts comprise the published set of conference materials.
• Corporate Authors:

  VERTIS

  TORANOMOM 34 MORI BUILDING 1-25-5
  TORANOMON, MINATOKU, TOKYO 105  Japan 
• Authors:
  • Massart, M
  • KOSHI, M
  • Kuwahara, M
• Conference:
  • Steps Forward. Intelligent Transport Systems World Congress
  • Location: Yokohama, Japan
  • Date: 1995-11-9 to 1995-11-11
• Publication Date: 1995-11

Language

• English

Media Info

• Pagination: p. 30

Subject/Index Terms

• TRT Terms: Algorithms; Beacons; Communications; Methodology; Optimization; Signalization; Traffic signals; Traffic simulation
• Uncontrolled Terms: Parameters
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 00716534
• Record Type: Publication
• Report/Paper Numbers: Volume 1
• Files: TRIS
• Created Date: Feb 26 1996 12:00AM