SWOV Catalogus


Using accident correctability to identify accident-prone locations.
C 8726 (In: C 8665 e) /10 /82 / IRRD 872607
Sayed, T. Navin, F. Abdelwahab, W. & Leur, P. de
In: Transportation : total customer satisfaction : proceedings of the 1995 Transportation Association of Canada TAC annual conference, Victoria, British Columbia, October 22-25, 1995, Volume 5, p. A67-A88, 8 ref. / Also published as: Journal of Transportation Engineering, Vol. 123 (1997), No. 2 (March/April) p. 107-113

Samenvatting In traditional Black Spot programs aimed at improving highway safety, locations are identified as accident prone based on the total number of accidents. This criteria, provides no consideration of whether the accidents were caused or could be corrected by road improvements. This traditional method results in the identification of locations that are not truly hazardous from a road safety authority perspective, and consequently, may lead to a misapplication of safety improvement funding. Therefore, accidents should be categorized into one or a combination of the three highway system components: the driver, the vehicle and the road. Sayed (Sayed et al., 1995) describes a procedure that allows each accident to have a membership in each of the three highway system components. This paper describes the application of this procedure for the identification of accident prone locations. The membership of each accident in the road environment component is used to represent the correctability of accidents by road improvements. Each accident is then weighted by its correctability. The effect of weighting accidents by their correctability is discussed and the usefulness of the approach is demonstrated. (A)
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