The objective of winter road maintenance in urban areas is to meet road users' requirements on safety and trafficability. However, there is a general lack of methods for determining the degree to which this objective is fulfilled. The Swedish Road and Traffic Research Institute, VTI, and the Department of Highway Engineering at Chalmers University of Techonolog, CTH, were therefore granted funds by the Swedish Transport Research Board to study the extent to which the safety and trafficability of road users depend on maintenance actions and prevailing weather and road conditions, and to carry out questionnaire surveys of road user attitudes and awareness concerning winter road maintenance. The concept of safety includes accidents in different traffic environments reported by the police and by hospitals. Trafficability is defined as flow, speed and time headway. Changes in winter road maintenance were studied in defined test zones in six urban areas. The effects of the changes were studied by means of comparisons with control zones. The study was carried out over four winter seasons. The changes in winter road maintenance were found not to lead to any statistically significant changes in safety. However, a strong relation between maintenance actions and trafficability was observed. (A)


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Media Info

  • Pagination: 45 p.
  • Serial:

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Filing Info

  • Accession Number: 00667935
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Files: ITRD
  • Created Date: Nov 2 1994 12:00AM