MINIMUM DELAY OPTIMIZATION OF A MAXIMUM BANDWIDTH SOLUTION TO ARTERIAL SIGNAL TIMING (ABRIDGMENT)

This study indicated the advantages and drawbacks of combining the two major state-of-the-art traffic signal control strategies: the bandwidth maximization procedure and the delay minimization technique. The enhanced reduced-delay optimization model provided in PASSER II-84 guarantees minimum total arterial system delay within the slack-time allowance range of the original PASSER II-80 maximum progression solution. Modifications to the PASSER II signal timing plan for an arterial street system, using both a maximum bandwidth procedure and a minimum delay signal timing optimization algorithm, are evaluated. An efficient and usable delay-based search algorithm to assist traffic engineers in selecting a minimum delay arterial street signal timing plan that optimizes phasing sequence, cycle length, and offsets based on maximum bandwidth calculations in an urban network is demonstrated. The maximum bandwidth procedures are based mainly on calculations of distance, travel speed, and continuity of available green time for progressive movements without direct relationship to delay. The minimum delay algorithm minimizes total system delay endured by all traffic in the analysis network. Resulting offsets confirmed the feasibility of minimizing delay by the optimal offsets from the maximum bandwidth algorithm. When minimum delay and maximum progression are used, as calculated by the enhanced PASSER II-84, an improved level of service results thereby providing maximum progression and minimum total system delay within the offset slack-time range. This research has provided various insights into the operational characteristics of the enhanced PASSER II-84. It was found that PASSER II-84 consistently outperformed PASSER II-80. A consistent and satisfactory trend of delay reductions was found between PASSER II-84 and NETSIM evaluations. Recommendations are to implement the enhanced PASSER II-84 with possible field validation, to develop alternative strategies for allocating directional bandwidths, and to explore execution time and program efficiency.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1985/1005/1005-011.pdf
• Summary URL:
  https://scholar.google.com/scholar_lookup?title=MINIMUM+DELAY+OPTIMIZATION+OF+A+MAXIMUM+BANDWIDTH+SOLUTION+TO+ARTERIAL+SIGNAL+TIMING+(ABRIDGMENT)&author=E.+Chang&author=C.+Messer&publication_year=1985
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• Supplemental Notes:
  • 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. Publication of this paper sponsored by Committee on Traffic Flow Theory and Characteristics.
• Corporate Authors:

  Transportation Research Board

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  Washington, DC  United States  20001
• Authors:
  • Chang, Edmond Chin-Ping
  • Messer, Carroll J
• Publication Date: 1985

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 89-95
• Monograph Title: HIGHWAY CAPACITY, TRAFFIC CHARACTERISTICS, AND FLOW THEORY
• Serial:
  • Transportation Research Record
  • Issue Number: 1005
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Algorithms; Arterial highways; Bandwidth; Distance; Green interval (Traffic signal cycle); Level of service; Optimization; Reduction (Chemistry); Streets; Traffic delays; Traffic signal timing; Travel time
• Old TRIS Terms: Reduction
• Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 00451830
• Record Type: Publication
• ISBN: 0309038154
• Report/Paper Numbers: HS-039 135
• Files: HSL, TRIS, TRB
• Created Date: Dec 31 1988 12:00AM