DEFINITIONS AND RELATIONSHIPS FOR THREE DIFFERENT TIME INTERVALS FOR DELAYED INTERVALS

The effect of temporary obstructions to traffic flow is generally evaluated from the "delay time" of impeded vehicles. Comparisons of delay time are sometimes very difficult due to varying definitions of delay. In this paper three different time intervals for delayed vehicles are defined: (1) The stopped time. - This is the interval between the moment a car arrives at the tail of a queue and the moment a car is able to move again. (2) The time consumed in a defined part of the system (waiting time). - This interval includes in addition to the stopped time, that time interval which is required to cross, for example the point of obstruction. (3) The operational delay time. - This is the difference between the time an unimpedded vehicle would have crossed the point of obstruction, and the time the same car actually crosses this point. A formula is developed based on deterministic assumptions, which allows an approximative computation of each of these time intervals. /Author/

• Supplemental Notes:
  • Proceedings of the 6th International Symposium on Transportation and Traffic Theory held at the University of New South Wales, Sydney, Australia from 26-28 August 1974.
• Corporate Authors:

  Elsevier Publishing Company, Incorporated

  52 Vanderbilt Avenue
  New York, NY  United States  10017
• Authors:
  • Leutzbach, W
  • Kohler, U
• Conference:
  • Transportation and Traffic Theory, Proceedings
• Publication Date: 1974-8

Media Info

• Features: Figures; References;
• Pagination: p. 87-102
• Serial:
  • Volume: 6

Subject/Index Terms

• TRT Terms: Calculation; Equations; Formulas; Headways; Navigational obstructions; Stopped time delays; Traffic delays; Traffic flow; Waiting time
• Uncontrolled Terms: Computation
• Old TRIS Terms: Obstruction
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00099272
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 10 1975 12:00AM