CASE STUDIES OF WRONG-WAY ENTRIES AT HIGHWAY INTERCHANGES IN VIRGINIA

An evaluation of a 2-year survey of wrong-way driving led to on-site investigations of a number of intersections and interchanges. The investigations showed a consistent pattern in wrong-way entry incidents that related to road geometrics, markings, and signs. Based on the findings of the investigations, five case studies were developed to show the effects of these variables. This paper discusses the results of the survey, some case studies, and measures for preventing wrong-way entries at selected interchanges. Some of the recommendations made are as follows: Channelize the left lane of the exit ramp and remove the left end flare; investigate the effectiveness of stop lines, the continuation of pavement edge lines across exit ramps, and the use of continuous double yellow lines; through the use of signs, provide intersection geometry information for drivers entering a 4-lane divided highway; and provide additional pavement marking and spotlighting to supplement signs.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1974/514/514-002.pdf
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=CASE+STUDIES+OF+WRONG-WAY+ENTRIES+AT+HIGHWAY+INTERCHANGES+IN+VIRGINIA&author=N.+Vaswani&publication_year=1974
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Operational Effects of Geometrics. 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:
  • Vaswani, N K
• Conference:
  • 53rd Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1974-1-21 to 1974-1-25
• Publication Date: 1974

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 16-28
• Monograph Title: Traffic operations
• Serial:
  • Transportation Research Record
  • Issue Number: 514
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Case studies; Data collection; Interchange ramps; Interchanges; Prevention; Road markings; Surveys; Traffic signs; Wrong way driving
• Geographic Terms: Virginia
• Old TRIS Terms: Freeway ramps; Traffic marking
• Subject Areas: Highways; Operations and Traffic Management; Security and Emergencies;

Filing Info

• Accession Number: 00083967
• Record Type: Publication
• ISBN: 0309023580
• Files: TRIS, TRB
• Created Date: Apr 8 1975 12:00AM