This is an interim report on a research study to relate accidents to various design factors. This report concerns itself with the relationship of accidents and accident rates to hourly traffic volumes. The report is based on 1,305 accidents occuring on a 3.8 mile section of U. S. Route 22 in New Jersey. Accident data were obtained from the files of the State Division of Motor Vehicles. Volume data were obtained from the State Highway Department. Accidents and accident rates for cars and trucks are compared with respect to the hourly traffic volumes. The research data indicate that for low volumes (less than 600 veh/hr) accident rates are lower for trucks than for passenger cars; for high volume conditions (greater than 1,200 veh/hr) trucks have higher accident rates, and for the 600-1200 veh/hr volume range accident rates for passenger cars and trucks are approximately the same. For purposes of the study, a truck was defined as any vehicle with more than four tires. It was found that the higher total accident rates occur in the low and high hourly volume ranges with the lower rates occuring in the intermediate hourly volume range. (Author)
Relationship of Accident Rates and Accident Involvements with Hourly Volumes
1966
43 pages
Report
Keine Angabe
Englisch
Relationship of accident rates and accident involvements with hourly volumes
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