Developments in the method of traffic conflict data acquisition used by TRRL are outlined and research carried out since 1979 is described. A total of 17 sites is used in the present study in a mix of urban and rural locations. These comprise 8 t-junctions and 9 crossroads and include both single and dual-carriageway priority roads with a fairly wide range of traffic flows and injury accident histories. Signalised junctions without roundabouts were not included in this study. The equipment used for the study and the way data are collected are described. For the covering abstract of the conference see IRRD abstract no 265671.
Abstract