THE DANISH CO-ORDINATED ACCIDENT STATISTICS

The Danish Road Directorate has published results of the so-called co-ordinated accident statistics concerning the five-years-period 1976-1980. The purpose of the co-ordinated accident statistics is to analyse accident numbers as functions of the traffic flow on different types of road sections and intersections. Among other things, the results are used for pointing out black spots. They are also used when evaluating the effect on road safety of a proposed road project. The co-ordinatetd accident statistics cover a road network of almost 7,500 km consisting of all Danish trunk roads (4,500), highways in 8 of the 14 Danish counties (3,000), and 130 km of roads in a single municipality. The road sections are divided into a number of types dependent on the width of the road, ribbon development, etc. While the type of an intersection is determined by the number of arms, regulation, channelling system, and ribbon development. The statistics deal with traffic accidents reported by the police during the years 1976-80, which amount to a total of 25,500 accidents. Of these 5,500 occurred at major intersections, and 20,000 on road sections in between. A similar study two years ago brought to light some interesting findings for road sections. For intersections, however, the results were incompatible with experience. The way in which the traffic load at the intersections is calculated has now been changed. The results of the co-ordinated accident statistics 1976-80 are compatible with experience for road sections and for intersections as well. The paper carefully describes the models and the accidental behaviour of the different types of road sections and intersections will be discussed. Finally examples of the ways in which the results are used in traffic planning practice will be given. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0860501124
• Supplemental Notes:
  • This paper was presented during Seminar H, Highway Construction and Maintenance at PTRC's 11th Annual Summer Meeting, Sussex University, England, 4-7 July 1983.
• Corporate Authors:

  PTRC Education and Research Services Limited

  110 Strand
  London WC2,   England 
• Authors:
  • WASS, C
• Conference:
  • Planning & Transport Res & Comp, Sum Ann Mtg, Proc
• Publication Date: 1983

Media Info

• Features: Figures; Tables;
• Pagination: p. 131-137

Subject/Index Terms

• TRT Terms: Classification; Conferences; Crash analysis; Crash records; Crashes; High risk locations; Highways; Intersections; Networks; Roads; Statistical analysis; Statistics; Traffic crashes; Traffic flow
• Uncontrolled Terms: Highway classification; Road networks
• Geographic Terms: Denmark
• ITRD Terms: 1643: Accident; 1663: Accident black spot; 8513: Classification; 8525: Conference; 8028: Denmark; 2755: Highway; 455: Junction; 6555: Statistics; 671: Traffic flow
• Subject Areas: Data and Information Technology; Highways; Safety and Human Factors; I81: Accident Statistics;

Filing Info

• Accession Number: 00382656
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-86050-112-4
• Report/Paper Numbers: Volume P240
• Files: ITRD, TRIS
• Created Date: May 30 1984 12:00AM