EVALUATION OF REAR-END COLLISION DATA FOR DETERMINING VEHICLE REAR-LIGHTING AND SIGNALING PRIORITIES

USING THE WASHTENAW COUNTY (MICHIGAN) ACCIDENT-DATA FILES, AN ANALYSIS OF REAR-END COLLISIONS INVOLVING TWO OR MORE VEHICLES WAS CARRIED OUT TO ASSIST IN THE DEVELOPMENT OF VEHICLE MARKING AND SIGNALING SYSTEMS, BY ASSOCIATING THE RELATIVE FREQUENCIES OF SUCH INJURY- PRODUCING COLLISIONS WITH THE ACTION OF THE VEHICLE STRUCK. ON COUNTY ROADS AND CITY STREETS, VEHICLES MOVING STRAIGHT OR STOPPING WERE STRUCK ABOUT FIVE TIMES AS OFTEN AS THOSE TURNING. ON LIMITED-ACCESS HIGHWAYS, VEHICLES WERE STRUCK MOST OFTEN WHEN MOVING STRAIGHT, WITH GREATER RELATIVE FREQUENCY AT NIGHT THAN DURING DAYTIME. AT NIGHT, PARKED VEHICLES WERE STRUCK MORE OFTEN THAN TURNING VEHICLES. BETTER MARKING OR SIGNALING FOR TURNING VEHICLES WAS INDICATED ON ROADS AND STREETS, WHILE DRIVER AIDS FOR DETERMINING RELATIVE VELOCITY, CLOSURE, AND DISTANCE ARE NEEDED ON LIMITED-ACCESS HIGHWAYS. THE RECOGNITION OF PARKED VEHICLES AT NIGHT NEEDS TO BE IMPROVE. /AUTHOR/

• Corporate Authors:

  Highway Safety Research Institute

  /Hit Lab Reports
  ,   United States 
• Authors:
  • Mortimer, R G
  • Post, D V
• Publication Date: 1972-12

Media Info

• Features: References; Tables;
• Pagination: p. 1-3
• Serial:
  • Publication of: Highway Safety Research Institute
  • Volume: 3
  • Issue Number: 4
  • Publisher: Highway Safety Research Institute

Subject/Index Terms

• TRT Terms: Highway safety; Parking; Prevention; Rear end crashes; Safety; Signaling; Turning traffic; Vehicle characteristics
• Uncontrolled Terms: Parked vehicles; Turning movements
• Subject Areas: Highways; Safety and Human Factors; Security and Emergencies;

Filing Info

• Accession Number: 00222155
• Record Type: Publication
• Files: TRIS
• Created Date: May 15 1973 12:00AM