ACCIDENT RATE AS A TRAFFIC SAFETY MEASUREMENT. THE ACCIDENT RATE VARIATION IN DIFFERENT ROAD AND LIGHTING CONDITIONS

OLYCKSKVOT SOM TRAFIKSAEKERHETSMAATT. LOYCKSKVOTENS VARIATION UNDER OLIKA VAEGLAGS-OCH LJUSFOERHAALLANDEN

Differences in accident exposure for different lighting conditions and road conditions in various parts of Sweden during different periods of the year are discussed. Accident exposure was measured in terms of the accident rate, i.e., the number of accidents per million kilometers of pair of axles. The network investigated comprises the national road network, and the accident material refers to 1973. Lighting conditions refers to daylight/darkness, and road conditions refers to bare ground/ice or snow. Based on traffic counts on the national road network during 1973, vehicle mileage could be distributed on these various external conditions as well as on region and month. The accident data was correspondingly distributed. In this way it was possible to express accident exposure with the aid of accident rates for various external conditions.

• Supplemental Notes:
  • In Swedish; English Summary.
• Corporate Authors:

  Swedish National Road and Transport Research Institute (VTI)

  Linköping,   Sweden  SE-581 95
• Authors:
  • Nilsson, G
• Publication Date: 1976

Media Info

• Pagination: 88 p.

Subject/Index Terms

• TRT Terms: Airport runways; Crash exposure; Crash investigation; Crash rates; Daily; Darkness; Ice; Lighting systems; Measurement; Motion; Safety management; Street lighting; Surface course (Pavements); Traffic control; Traffic crashes; Traffic safety; Variables
• Uncontrolled Terms: Mileage
• Geographic Terms: Sweden
• Old TRIS Terms: Illuminating; Variations
• Subject Areas: Highways; Operations and Traffic Management; Pavements; Safety and Human Factors;

Filing Info

• Accession Number: 00166203
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: VTI-73
• Files: TRIS
• Created Date: Sep 20 1978 12:00AM