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Evaluation of Pennsylvania Road Safety Audit Pilot Program
Effects on Speeds and Accidents
AASHTO accident algorithm all-red interval analysis automated RLR enforcement carriers clearance interval conducted cost crash data crash frequencies Department of Transportation district drivers evaluation Florida focus groups Geographic Information Systems Hawaii Highway Safety Howard County ICBC identified impaired riders implementation improvements included insurance companies km/h law enforcement left-turn license locations logistic regression lower wintertime speed ment motorcycle crashes motorcycle helmet motorcyclists National Research Council nonimpaired riders novelty helmet observed OOS Rate original ISS participants pedestrian PennDOT percent phase police Polk County private truck stops problem recommendations red light cameras red light running red light violations reduce rest areas road safety road safety engineering roadside inspections roadway SafeStat safety audit process safety engineering selected Seven Mile Road signalized intersections significant survey Table tion Total traffic crash traffic engineering traffic safety traffic signal truck parking turning vehicles U.S. Department wintertime speed limits yellow interval