RUN-OFF-THE-ROAD ACCIDENTS AND THE ROADSIDE AREA. STAGE 3. ACCIDENT COSTS AND ESTIMATIONS OF ACCIDENT RISKS AND COSTS FOR OBJECTS IN THE ROADSIDE AREA

AVKOERNINGSOLYCKOR OCH VAEGENS SIDOUTRYMME. ETAPP 3. OLYCKSKOSTNADER SAMT BERAEKNING AV OLYCKSRISKER OCH OLYCKSKOSTNADER FOER OBJEKT I SIDOUTRYMMET

The purpose of this report stage was to: (1) estimate the costs for run-off-the-road accidents, (2) investigate how the costs for run-off-the-road accidents vary with type of object struck, roadside design etc and (3) modify an existing model, with which the reduction in accident costs can be estimated for improvements concerning objects in the roadside area. The results show that 42% of all accidents during 1972-76 on roads maintained by the National Road Administration were run-off-the-road accidents. The proportion of run-off-the-road accidents is greater on road stretches than at intersections - 48% and 28% respectively. The average cost for a run-off-the-road accident is 122000 sw CR if no vehicles collide and 209000 sw CR if the encroachment takes place in combination with a vehicle collision. The lateral distance, i.e. the distance from the road edge to the position of the encroached vehicle, is important when estimating the probability of a collision with a roadside obstacle. The results show that most vehicles are hindered by the ditch and that the distribution of lateral distances can be approximated by the negative exponential distribution. Finally, results are discussed, which show the variations in accident costs, depending upon where in the roadside area the struck object was positioned. The influence of lateral and longitudinal distance is, inter alia, discussed. The type of object struck is more important than its position in the roadside area. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03476049
• Corporate Authors:

  Swedish National Road and Transport Research Institute (VTI)

  Linköping,   Sweden  SE-581 95
• Authors:
  • Schandersson, R
• Publication Date: 1979

Language

• Swedish

Media Info

• Features: Figures; References; Tables;
• Pagination: 123 p.
• Serial:
  • Publication of: National Swedish Road & Traffic Research Institute
  • Publisher: Swedish National Road and Traffic Research Institute
  • ISSN: 0347-6049

Subject/Index Terms

• TRT Terms: Bolts; Costs; Crash investigation; Crashes; Distance; Drilling; Equipment; Hydraulic fluids; Hydraulics; Mathematical models; Presplitting (Blasting); Probability theory; Ran off road crashes; Reduction (Chemistry); Roadside structures; Structural design; Tunnels
• Uncontrolled Terms: Accident costs
• Old TRIS Terms: Reduction
• ITRD Terms: 1643: Accident; 224: Cost; 2755: Highway; 2855: Highway design; 9108: Improvement; 9061: Location; 6473: Mathematical model; 1644: Obstacle; 9150: Risk; 9074: Side
• Subject Areas: Bridges and other structures; Data and Information Technology; Design; Finance; Highways; Safety and Human Factors; I10: Economics and Administration; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 00317136
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Report/Paper Numbers: VTI Rapport NR185 Monograph
• Files: ITRD, TRIS
• Created Date: Apr 15 1981 12:00AM