EVALUATION OF A PROTOTYPE WARNING SYSTEM FOR URBAN FREEWAYS

This paper evaluates a prototype real-time system that warns approaching motorists of stoppages downstream of cresting vertical curves. Before and after studies were conducted to measure primary and secondary accidents. A questionnaire survey was administered to obtain motorist reactions. The study results revealed that the warning system is cost effective. Both primary and secondary accidents were reduced. The results of the questionnaire study indicated that motorists believed that the system was useful, that the warning sign was readily noticed, and that the message was generally understandable and appropriate to traffic conditions.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1975/533/533-005.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=EVALUATION+OF+A+PROTOTYPE+WARNING+SYSTEM+FOR+URBAN+FREEWAYS&author=C.+Dudek&author=R.+Huchingson&author=G.+Ritch&publication_year=1975
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/030902384X
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Freeway Operations. 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:
  • Dudek, Conrad L
  • Huchingson, R Dale
  • Ritch, Gene
• 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 64-76
• Monograph Title: Freeway Entry, Flow, and Control
• Serial:
  • Transportation Research Record
  • Issue Number: 533
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Before and after studies; Cost effectiveness; Evaluation; Freeways; Prevention; Questionnaires; Safety; Warning systems
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors; Security and Emergencies;

Filing Info

• Accession Number: 00099663
• Record Type: Publication
• ISBN: 030902384X
• Files: TRIS, TRB
• Created Date: Nov 5 1975 12:00AM