ACCIDENT EXPOSURE AND INTERSECTION SAFETY FOR AT-GRADE, UNSIGNALIZED INTERSECTIONS
THE PURPOSE OF THIS STUDY IS TO PROVIDE A METHOD THAT WILL ENABLE TRAFFIC AND SAFETY ENGINEERS TO COMPARE CERTAIN TYPES OF INTERSECTIONS RELATIVE TO TRAFFIC SAFETY. THE METHOD IS BASED ON DETERMINING AN ACCIDENT EXPOSURE INDEX AND COULD BE UTILIZED TO IDENTIFY THE INTERSECTIONS THAT ARE PRONE TO ACCIDENTS. FOUR PRIORITY-TYPE, UNSIGNALIZED, AT-GRADE INTERSECTIONS OF VARYING GEOMETRICS WERE INVESTIGATED. A FAIRLY GOOD CORRELATION WAS FOUND BETWEEN THE NUMBER OF ACCIDENTS AND THE ACCIDENT EXPOSURE INDEX. THE INDEX WAS CALCULATED ON THE BASIS OF THE MERGING OF THE TWO TRAFFIC STREAMS, AND HENCE THE SINGLE-VEHICLE ACCIDENTS CANNOT BE ASSUMED TO CORRELATE WITH THE INDEX. /AUTHOR/
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Supplemental Notes:
- Paper sponsored by Committee on Operational Effects of Geometrics and presented at the 48th Annual Meeting. 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.
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Authors:
- Surti, Vasant H
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Discussers:
- McCarthy, C Blase
- Publication Date: 1969
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 81-95
- Monograph Title: Traffic control devices
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Serial:
- Highway Research Record
- Issue Number: 286
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Alternatives analysis; Crash exposure; Crash investigation; High risk drivers; Intersections; Merging traffic; Traffic crashes; Traffic safety
- Uncontrolled Terms: Exposure
- Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;
Filing Info
- Accession Number: 00225575
- Record Type: Publication
- Report/Paper Numbers: Paper No 1
- Files: TRIS, TRB
- Created Date: Dec 22 1994 12:00AM