Projects

Modeling Highway Accidents Using Spatially and Temporally -Explicit Event Data: A Southeastern Pennsylvania Pilot Study


Source Organization:
University:University of Pennsylvania
Principal Investigator:John D. Landis
PI Contact Information:Department of City and Regional Planning, 127 Meyerson Hall, 210 S. 34th St. Philadelphia PA (P) 215-746-2340 jlan@design.upenn.edu
Project Manager:Courtney Ehrlichman
Funding Source(s) and Amounts Provided (by each agency or organization):T-SET UTC
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Start and End Dates:October 1, 2012 thru July 31, 2013
Project Status:Complete
Subject Categories:Southeastern Pennsylvania Pilot Study
Abstract:Using individual accident records provided by PennDOT, and covering the 2007 to 2012 period, this project will develop a series of statistical models of accident frequency on federal and state 4-lane, controlled-access roads in Southeastern Pennsylvania. The dependent variable will be the frequency of accidents per month per 1-mile or 2-mile roadway segment by time of day and accident severity. The independent variables will include: (1) car and truck traffic volumes, speeds, and congestion levels; (2) weather and visibility conditions; (3) Roadway capacity, lane counts, and geometry measures; (4) Measures of intersection frequency and type; and other measures of facility design, capacity, and use. Should the pilot study yield robust results, we would later make it statewide in scope
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