EFFECT OF CERTAIN ROADWAY CHARACTERISTICS ON ACCIDENT RATES FOR TWO-LANE, TWO-WAY ROADS IN CONNECTICUT (ABRIDGMENT)

This study identified and defined which roadway elements are statistically correlated with accident occurence and evaluated the relative merit of each element as an index of accident prediction. Of the three principal factors associated with accidents, the vehicle, the driver, and the roadway, this paper considers contribution of the roadway. Four selected geometric elements, roadway width, horizontal curvature, vertical clearance, and restricted sight distance were rated for adequacy, and these ratings were then correlated with accident rates. Multiple linear regression analyses were performed to examine these relationships. The resulting correlation coefficients were quite small. Of the four geometric characteristics considered, restricted sight distance and horizontal curvature appear to have some effect on accident rates and vertical clearance appears to have no effect.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1975/541/541-006.pdf
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=EFFECT+OF+CERTAIN+ROADWAY+CHARACTERISTICS+ON+ACCIDENT+RATES+FOR+TWO-LANE%2c+TWO-WAY+ROADS+IN+CONNECTICUT+(ABRIDGMENT)&author=R.+Gupta&author=R.+Jain&publication_year=1975
• Availability:
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• 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:
  • Gupta, R C
  • Jain, R P
• 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: Digital/other
• Features: References;
• Pagination: pp 50-54
• Monograph Title: Effect of roadway geometrics on traffic operations
• Serial:
  • Transportation Research Record
  • Issue Number: 541
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Average daily traffic; Crash rates; Data collection; Geometric curves; Geometric design; Highway curves; Linear regression analysis; Pavements; Plan implementation; Prevention; Regression analysis; Safety; Safety factors; Shrinkage; Sight distance; Statistics; Width
• Uncontrolled Terms: Horizontal curvature; Safety improvement
• Old TRIS Terms: Pavement width
• Subject Areas: Data and Information Technology; Design; Highways; Operations and Traffic Management; Pavements; Safety and Human Factors; Security and Emergencies;

Filing Info

• Accession Number: 00127150
• Record Type: Publication
• ISBN: 0309023947
• Files: TRIS, TRB
• Created Date: Jan 14 1976 12:00AM