Optimization of Offset Reference Point for Coordinated-Actuated Signal Control

Modern traffic controllers support various phase force-off modes for traffic-actuated control. This paper describes the detailed operational mechanisms of the force-off modes used in traffic signal controllers and CORSIM. In addition, the delay performance of four force-off modes has been examined through simulation experiments under the coordinated-actuated signal operations environment. According to the simulation results, the fixed force-off mode showed the best performance for all volume-to-capacity ratios, and when considering short-term fluctuations in traffic volume, the fixed force-off mode also outperformed the floating force-off and CORSIM-embedded modes for every demand variations. Based on the case study conducted under various traffic conditions, it could be identified that the fixed force-off mode provides more benefits in coordinated-actuated signal operations.

• Supplemental Notes:
  • Abstract reprinted with permission from Intelligent Transportation Society of America. The Table of Contents on the DVD lists the title of this paper as "Offset Reference Point Configuration Methods in Traffic Signal Controller".
• Corporate Authors:

  ITS America

  1100 17th Street, NW, 12th Floor
  Washington, DC  United States  20036
• Authors:
  • Lee, Jisun
• Conference:
  • 19th ITS World Congress
  • Location: Vienna , Austria
  • Date: 2012-10-22 to 2012-10-26
• Publication Date: 2012

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 10p
• Monograph Title: 19th ITS World Congress, Vienna, Austria, 22 to 26 October 2012

Subject/Index Terms

• TRT Terms: Highway traffic control; Offsets (Traffic signal timing); Traffic actuated controllers; Traffic delays; Traffic signal control systems; Traffic volume
• Identifier Terms: CORSIM (Traffic simulation model)
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 01501710
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 23 2013 7:52AM