Identification of High Risk Metropolitan Intersection Sites in Perth Metropolitan Area

Because of the greater crash risk at intersections compared to the rest of the road network, it is important to prioritise intersections for safety improvements. A three-stage approach was used to identify these intersections: Road Trauma Risk Analysis, then Comparative Safety Performance Analysis and finally ranking the intersections by the KSI (killed and serious injury) metric. The results ascertained the high risk intersections for each intersection type (by speed environment and control type). Extensions to this process are recommended to improve high risk intersection identification, and the use of a taxonomy to identify candidate treatments.