EVALUATION OF RAILROAD PREEMPTION CAPABILITIES OF TRAFFIC SIGNAL CONTROLLERS

The subject of railroad preemption has historically not received much attention in professional literature. All aspects of preemption need to be studied and reported on in greater detail. This research examined and compared the preemption capabilities of a number of currently marketed actuated traffic signal controllers based on the Naitonal Electrical Manufacturers Association standard. Shortcomings in their preemption logic were identified, and preemption issues were discussed in terms of their operations. The evaluation was conducted from a pragmatic point of view to determine whether modern controllers allow practical and reasonable preemption design in conformance with accepted traffic engineering practice. Recommendations are offered with respect to minimum desirable operational capabilities, as well as railroad preemption nomenclature and user documentation.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1990/1254/1254-006.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=EVALUATION+OF+RAILROAD+PREEMPTION+CAPABILITIES+OF+TRAFFIC+SIGNAL+CONTROLLERS&author=P.+Marshall&author=W.+Berg&publication_year=1990
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309050065
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1254, Traffic Control Devices for Highways, Work Zones, and Railroad Grade Crossings 1990. 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:
  • Marshall, Peter S
  • Berg, William D
• Publication Date: 1990

Media Info

• Features: References; Tables;
• Pagination: p. 44-49
• Monograph Title: Traffic control devices for highways, work zones, and railroad grade crossings 1990
• Serial:
  • Transportation Research Record
  • Issue Number: 1254
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Definitions; Documents; Railroad grade crossings; Recommendations; Traffic signal controllers; Traffic signal preemption
• Uncontrolled Terms: Documentation; Nomenclature
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Railroads; Research; I73: Traffic Control;

Filing Info

• Accession Number: 00497394
• Record Type: Publication
• ISBN: 0309050065
• Files: TRIS, TRB, ATRI
• Created Date: Sep 30 1990 12:00AM