Driving around Melbourne is estimated from an “exposure survey” conducted in Autumn 2001. The risk of crashing per distance travelled is calculated using corresponding crash frequencies during the 3-year period: 2000-2002. To develop and evaluate road safety initiatives, it is important to assess the circumstances with “high crash risk” as well as the circumstances with ‘high crash frequency”. Distance travelled depends on the type of vehicle, the occupants, the place, the time, etc. and hence the risk of crashing can be relatively higher or relatively lower than expected from the number of crashes. Knowledge of both measures provides more accurate benefit/cost estimations than estimations based on crash frequencies alone. This project produces thousands of risk measures: number of crashes per distance travelled corresponding to (a) the chosen interest group (type of vehicle or occupancy of vehicle), (b) the type of risk (driver involvement or driver injury) and (c) the type of crash. (Author/publisher) For the covering entry of this conference, please see ITRD abstract no. E211985.
Samenvatting