A Study of Collisions with Lead Versus Lag Left-Turn Phasing: Additional Data and Analyses
This paper reports on a study comparing 8 years of collision data for intersections with leading and lagging left-turn arrow operations in two Arizona cities. Collision experience is compared at 13 intersections with lagging left-turn arrows and 9 intersections with leading left-turn arrows. Results showed that lagging left-turn arrows had a statistically significant lower collision rate than leading left-turn arrows for all collisions, collisions involving left-turning vehicles and collisions involving left-turning vehicles with opposing through vehicles. There was no statistically significant difference between lagging left-turn arrow operation and leading left-turn arrow operation in the rate of collisions that did not involve left-turn vehicles.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/614107147
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Authors:
- Basha, Paul E
- Publication Date: 2007-8
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 22-29
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Serial:
- ITE Journal
- Volume: 77
- Issue Number: 8
- Publisher: Institute of Transportation Engineers (ITE)
- ISSN: 0162-8178
- Serial URL: https://www.ite.org/publications/ite-journal/
Subject/Index Terms
- TRT Terms: Alternatives analysis; Crash data; Crash rates; Crashes; Lead-lag phasing; Left turn phase; Left turns; Signalized intersections; Statistical analysis; Traffic crashes; Traffic safety
- Geographic Terms: Arizona
- Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control; I82: Accidents and Transport Infrastructure;
Filing Info
- Accession Number: 01055246
- Record Type: Publication
- Files: TRIS
- Created Date: Aug 21 2007 1:17AM