The crash data used spans 5 years from January 2007 to December 2011. For all reports, only fatality and injury crashes were counted (including possible injuries). New Safety Performance Functions have been introduced for injury-fatality crashes only (previous SPFs included all crash types).
Oklahoma Highway Safety Improvement Program (HSIP) Five Percent Report, 2012
2012
9 pages
Report
Keine Angabe
Englisch