Distance Gap as a Detection Design and Operations Tool

This paper considers the concept of the distance gap as a means to better design detection using demand based control using long presence loops with minimal passage time to better deal with queue discharge dynamics which vary based on distance from the stop bar. The paper considers three questions: the characteristics of the distance gap in a discharging queue, the speed characteristics of vehicles in a discharging queue, and the length of the detection zone resulting from a joint consideration of distance gap and zero passage time. A longer detection zone length reduces the need for a non-zero passage time value and has the potential to allocate time more efficiently to higher demand phases.

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Kyte, Michael
  • Abdel-Rahim, Ahmed
  • Dixon, Michael P
  • Li, Jan-Mou
  • Urbanik II, Thomas
• Conference:
  • Transportation Research Board 88th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2009-1-11 to 2009-1-15
• Date: 2009

Language

• English

Media Info

• Media Type: DVD
• Features: Figures; Maps; Photos; References; Tables;
• Pagination: 20p
• Monograph Title: TRB 88th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

• TRT Terms: Car following; Gap acceptance; Loops (Control systems); Operations; Traffic incidents; Traffic platooning; Traffic queuing; Travel demand; Vehicle spacing
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01126976
• Record Type: Publication
• Report/Paper Numbers: 09-1083
• Files: TRIS, TRB
• Created Date: Apr 21 2009 8:52AM