NORTH DAKOTA INTERSTATE SYSTEM ACCIDENT STUDY

THE PRIMARY PURPOSE OF THIS REPORT WAS TO SHOW COMPARISONS OF ACCIDENT, INJURY, AND FATALITY RATES BETWEEN THE COMPLETED PORTIONS OF THE INTERSTATE SYSTEM AND EXISTING U. S. NUMBERED RURAL HIGHWAYS WITHIN NORTH DAKOTA. THE REPORT WAS PREPARED IN TWO PARTS. PART I CONSISTED OF A COMPARISON OF THE ENTIRE RURAL INTERSTATE MILEAGE OPENED TO TRAFFIC PRIOR TO JANUARY 1, 1962, WITH SIMILAR LENGTH SECTIONS OF NEARBY EXISTING HIGHWAYS. IN PART II, TWO SHORT SECTIONS OF INTERSTATE 94 WERE SELECTED AND COMPARED TO NEARBY EXISTING U. S. ROUTES. RATES WERE COMPUTED FOR THE EXISTING HIGHWAYS BOTH BEFORE AND AFTER THE CORRESPONDING INTERSTATE SECTIONS WERE OPENED TO TRAFFIC. THE ACCIDENT RATE ON THE INTERSTATE SYSTEMS WAS 15 PERCENT LOWER THAN THAT ON THE EXISTING ROUTES. THE RATES FOR INJURIES AND FATALITIES WERE RESPECTIVELY 54 AND 86 PERCENT LOWER ON THE INTERSTATE SYSTEM THAN ON THE EXISTING ROUTES. HEAD-ON COLLISIONS WERE FOUND TO BE NEARLY NON-EXISTENT ON THE INTERSTATE HIGHWAYS. /BPR/

• Supplemental Notes:
  • State No./6/-64, 1963
• Corporate Authors:

  North Dakota State Highway Department

  State Highway Building, Capitol Grounds
  Bismarck, ND  United States  58505
• Publication Date: 1963

Subject/Index Terms

• TRT Terms: Alternatives analysis; Before and after studies; Crash rates; Fatalities; Improvements; Injuries; Roads; Rural highways; Vehicle miles of travel
• Identifier Terms: Interstate 94; Interstate Highway System
• Geographic Terms: North Dakota
• Old TRIS Terms: Existing roads; Mileage death rate
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00219643
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS, STATEDOT
• Created Date: Oct 1 1994 12:00AM