ANALYSIS OF SIDE-MOUNTED TURN SIGNAL SAFETY BENEFITS (ABRIDGMENT)

An analysis was undertaken to obtain an estimate of the accident and dollar savings that might be realized from the installation of side-mounted turn signals on passenger cars. An analytical model was developed that predicts the probability of an accident with and without a side turn signal given that the lead driver makes a blind lane change. Annual side turn signal benefits were then estimated by calculating the number of vehicles saved from being in accidents through provision of a side turn signal. The analytical procedure involved three different tasks. First, an adjacent lane overtaking model was developed that defined the overtaking situations in which an accident would occur under each of several different environmental conditions. Next, a probability model was employed to estimate the accident likelihoods under each of these conditions. Finally, a survey of accident data yielded the relative accident frequencies of these conditions and also produced an estimate of the overall number of lane-change crashes expected to occur each year.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1976/600/600-006.pdf
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=ANALYSIS+OF+SIDE-MOUNTED+TURN+SIGNAL+SAFETY+BENEFITS+(ABRIDGMENT)&author=E.+Farber&author=E.+Grush&author=S.+Rezabek&publication_year=1976
• Availability:
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Motorist Information Systems.. 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:
  • Farber, E I
  • Grush, E S
  • Rezabek, S E
• Conference:
  • 55th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1976-1-19 to 1976-1-23
• Publication Date: 1976

Media Info

• Media Type: Digital/other
• Features: Figures;
• Pagination: pp 30-32
• Monograph Title: Motorist information systems and services
• Serial:
  • Transportation Research Record
  • Issue Number: 600
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Automobiles; Benefit cost analysis; Crash rates; Lamps; Lane changing; Mathematical models; Passing; Prevention; Safety; Signal face; Turn signals
• Uncontrolled Terms: Models
• Old TRIS Terms: Side marker lamps
• Subject Areas: Highways; Safety and Human Factors; Security and Emergencies;

Filing Info

• Accession Number: 00153131
• Record Type: Publication
• ISBN: 0309025699
• Files: TRIS, TRB
• Created Date: May 31 1977 12:00AM