PREFERENTIAL CONTROL WARRANTS OF LIGHT RAIL TRANSIT MOVEMENTS

The goal of this paper is to demonstrate a method for evaluating a preferential treatment technique for light rail transit (LRT) in urban areas. A mathematical delay model, which uses probability expressions, is presented to evaluate two LRT preemption signal strategies in existing arterial medians. The model permits the user to evaluate three operational options: a two-phase signal plan, a three-phase signal plan with a separate LRT phase, and a three-phase signal plan with an exclusive left-turn phase for main arterial vehicles. The signal controller modeled in this paper has green extension and red truncation capabilities. Model testing and validation proved that the model parameters consistently produced reasonable results. Control warrant guidelines were developed for two operational options.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1985/1010/1010-010.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=PREFERENTIAL+CONTROL+WARRANTS+OF+LIGHT+RAIL+TRANSIT+MOVEMENTS&author=A.+Radwan&author=K.+Hwang&publication_year=1985
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309038227
• 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 Control Devices.
• Authors:
  • Radwan, A Essam
  • Hwang, Kuo-Ping
• Publication Date: 1985

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 69-75
• Monograph Title: Traffic control devices and rail highway crossings
• Serial:
  • Transportation Research Record
  • Issue Number: 1010
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Bus priority; Light rail transit; Light rail transit grade crossings; Probability theory; Traffic signal preemption; Traffic simulation; Urban areas; Validation; Warrants (Traffic control devices)
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Public Transportation; Safety and Human Factors; Terminals and Facilities; I73: Traffic Control;

Filing Info

• Accession Number: 00452655
• Record Type: Publication
• ISBN: 0309038227
• Files: TRIS, TRB
• Created Date: Apr 30 1986 12:00AM