Statewide crash analysis and forecasting.
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2008-11-20
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Edition:Final report
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Abstract:There is a need for the development of safety analysis tools to allow Penn DOT to better assess the safety performance of road
segments in the Commonwealth. The project utilized a safety management system database at Penn DOT that integrates crash,
occupant, vehicle and traffic information in an integrated searchable format (i.e., C~DART}. The analyses conducted and models
produced in this research should enhance PennDOT's ability to conduct safety analyses, particularly those using C-DART. The list
of sites with promise contains a rank ordering of road segments offering the greatest potential for safety improvement. The model
containing crash severity levels should give Penn DOT additional confidence when combining fatal and severe injury crashes in
needed analyses. Lastly, the models including census data have explored the feasibility of using that approach to safety modeling
(although additional testing is needed).
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