DETERMINING VEHICLE SIGNAL CHANGE AND CLEARANCE INTERVALS

This report focuses on current U.S. practices and contains information on particular procedures used to determine vehicle signal change intervals. The methodologies presented here are based on the "permissive yellow rule," which allows drivers to enter the intersection until the end of the yellow interval. For this report, the term "vehicle signal change interval" (also known as the intergreen period) is defined as that period of time in a traffic signal cycle between conflicting green intervals, and is characterized by a yellow change interval sometimes followed by a red clearance interval.

• Corporate Authors:

  Institute of Transportation Engineers (ITE)

  Washington, DC  United States 
• Conference:
  • Compendium of Technical Papers, 64th ITE Annual Meeting
  • Location: Dallas, Texas
  • Date: 1994-10-16 to 1994-10-19
• Publication Date: 1994

Language

• English

Media Info

• Features: References;
• Pagination: p. 27-31

Subject/Index Terms

• TRT Terms: Green interval; Red clearance interval; Time intervals; Traffic signal timing; Yellow change interval
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 00716565
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 31 2004 12:00AM