Costing of Road Crashes by RUM Code and Speed Limit.

Economic analysis of treatments proposed to reduce the number and/or the severity of crashes occurring at ”blackspots‘ require cost estimates of crashes by road user movement code. As these treatments are proposed in different speed environments, the cost estimates need to be for different speeds in the range from 50 to 110 km/h. Similarly, for major road projects, where road crash rates per vehicle kilometre and an average cost per crash are used to estimate total crash costs before and after project implementation, it is desirable that the cost per crash be available for generic road types at each speed in the range from 50 to 110 km/h. These average costs per crash should be derived from estimates of costs per person killed or injured plus the damage costs either per vehicle involved or per crash. This paper describes the method used to estimate per crash costs by road user movement code by speed limit and the per crash cost by generic road type by speed limit from costs per person injured and damage costs per crash. General introduction to need Estimates of road crash costs are used at three different levels • At a macro level for estimating the total costs of all crashes over a large area (for a State or the whole of Australia) • At a road project level where there is a predicted change in the total number of crashes with no change in the proportions of the type of crash