RAN-OFF-ROAD ACCIDENTS AND THE SIDE CLEARANCE OF THE ROAD. STAGE 1 B - A PILOT STUDY IN THE COUNTY OF SOEDERMANLAND, SWEDEN

AVKOERNINGSOLYCKOR OCH VAEGENS SIDOUTRYMME. ETAPP 1 B - PILOTSTUDIE I SOEDERMANLANDS LAEN

This study aims at providing guide lines and information necessary for planning and implementation of a more comprehensive investigation, the object of which will be to find appropriate measures relating to the road, the traffic and the clearance provided at the sides of the road, in order to reduce the number of ran-off-road accidents and to lessen the injury caused by these accidents. The material analyzed was police reported accidents, which occurred in soedermanland during 1969-71. Of the ran-off-road accidents 59% were single vehicle accidents, 14% involved two vehicles meeting and 13% were the result of an overtaking manoeuvre. In the 719 accidents analyzed, 15 people were killed, 90 badly injured and 242 slightly injured, while 705 people escaped without injury. The alignment of the road, both vertical and horizontal alignment but especially the latter, exhibits a pronounced effect on the risk of ran-off-road accidents. Objects such as trees, rocks, lighting columns etc. situated in side clearances cause serious injuries when hit by a vehicle when it leaves the road. Collisions with rigid objects cause more serious injuries than collisions with non-rigid objects. By removing all road side obstacles near the road the exposition to risk of collision should be greatly reduced. /TRRL/

• Corporate Authors:

  Swedish National Road and Transport Research Institute (VTI)

  Linköping,   Sweden  SE-581 95
• Authors:
  • Petterson, R
• Publication Date: 1975

Language

• Swedish

Media Info

• Features: Figures; References; Tables;
• Pagination: 41 p.
• Serial:
  • Issue Number: 48

Subject/Index Terms

• TRT Terms: Alignment; Crash investigation; Crash rates; Crashes; Earthwork; Fatalities; Highway design; Highway safety; Highways; Injuries; Injury severity; Lighting columns; Navigational obstructions; Passing; Ran off road crashes; Roadside structures; Single vehicle crashes; Statistics; Stiffness; Vegetation; Vehicles
• Uncontrolled Terms: Fixed object; Horizontal; Land clearance; One; Side; Vertical
• Old TRIS Terms: Obstruction
• Subject Areas: Data and Information Technology; Highways; Safety and Human Factors; Vehicles and Equipment; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 00132232
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Report/Paper Numbers: R&D Rpt.
• Files: ITRD, TRIS
• Created Date: Jun 23 1976 12:00AM