RELATIONSHIP OF ACCIDENT RATES AND ACCIDENT VOLUMES WITH HOURLY VOLUMES

ACCIDENTS AND ACCIDENT RATES ARE RELATED TO HOURLY TRAFFIC VOLUMES AND ARE 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.

• Supplemental Notes:
  • Hpr, N.J. NO 4,
• Corporate Authors:

  New Jersey Department of Transportation

  1035 Parkway Avenue
  Trenton, NJ  United States  08625
• Publication Date: 1966-6-8

Subject/Index Terms

• TRT Terms: Alternatives analysis; Automobiles; Crash rates; Crashes; Trucks; Volume
• Uncontrolled Terms: Data
• Subject Areas: Highways; Motor Carriers; Safety and Human Factors;

Filing Info

• Accession Number: 00219664
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS, STATEDOT
• Created Date: Jul 1 1994 12:00AM