SERVICE RATES OF MIXED TRAFFIC ON THE FAR LEFT LANE OF AN APPROACH

The effect of left-turning vehicles on approach capacity has been observed and studied, but a complete model has been lacking. As part of the development of the TRAFLO simulation model for the Federal Highway Administration, the capacity of a signalized intersection approach was modeled. The most complex component of this capacity model, that for left-turn lanes, is discussed. Three basic types of intervals for the vehicle discharge process are identified, and the probabilities of each are found. Expressions for expected vehicle discharge per cycle and for saturation flow rates per hour of green are reported. Reasonable results have been obtained. (Author)

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1980/772/772-005.pdf
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=SERVICE+RATES+OF+MIXED+TRAFFIC+ON+THE+FAR+LEFT+LANE+OF+AN+APPROACH&author=W.+McShane&author=E.+Lieberman&publication_year=1980
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Traffic Flow Theory and Characteristics. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • McShane, William R
  • Lieberman, Edward B
• Conference:
  • 59th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1980-1-21 to 1980-1-25
• Publication Date: 1980

Media Info

• Media Type: Web
• Features: Figures; References;
• Pagination: pp 18-23
• Monograph Title: Traffic flow theory, characteristics and capacity
• Serial:
  • Transportation Research Record
  • Issue Number: 772
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Approach lanes; Flow; Highway capacity; Left turns; Percent saturation; Signalized intersections; Traffic flow; Traffic simulation
• Uncontrolled Terms: Flow rate
• Old TRIS Terms: Approaches
• Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 00334158
• Record Type: Publication
• ISBN: 0309031168
• Files: TRIS, TRB
• Created Date: Oct 28 1981 12:00AM