NO-STOP-1 VERSUS SIGPROG

This paper discusses the theory and fundamentals of progressively timed signal systems, whose objective is the achievement of maximum possible bandwidth. The relationship of bandwidth to speed, cycle length, splits, and distances is defined. Two conditions concerning the centers of green and their respective eccentricities are discussed, and their relationship to the bandwidth is demonstrated. Based on these relationships, a model is developed that satisfies the conditions of the Tschebysheff theorem. This theorem serves as the optimization model for maximizing bandwidth; in it speed and cycle length are varied within reasonable and defined limits. NO-STOP-1 is an outgrowth of this model. It includes a table printout that identifies all data necessary to describe a time-space diagram as well as a computer-plotted, time-space diagram that takes into consideration various options. NO-STOP-1 then is compared to SIGPROG. NO-STOP-1 yields larger bandwidths than those produced by SIGPROG. NO-STOP-1 also has a greater variety of options. NO-STOP-1 is also briefly compared to other programs.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1975/531/531-006.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=NO-STOP-1+VERSUS+SIGPROG&author=H.+Leuthardt&publication_year=1975
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309023785
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Traffic Control Devices. 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:
  • Leuthardt, Helmut R
• Conference:
  • 54th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia
  • Date: 1975-1-13 to 1975-1-17
• Publication Date: 1975

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 70-81
• Monograph Title: Traffic Control and Motorist Information
• Serial:
  • Transportation Research Record
  • Issue Number: 531
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Bandwidth; Computer programs; Mathematical models; Optimization; Speed; Theorems; Traffic signal cycle; Traffic signal timing
• Uncontrolled Terms: Models
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00097211
• Record Type: Publication
• ISBN: 0309023785
• Files: TRIS, TRB
• Created Date: Oct 18 1975 12:00AM