Reporting on serious road traffic casualties : combining and using different data sources to improve understanding of non-fatal road traffic crashes.

To improve further road safety, it is necessary to have a better understanding of the real number of road traffic casualties, including serious injuries. This is made possible by linking different sources of accident data, including police and hospital data. This report, prepared by the IRTAD Group, reviews how serious injuries are defined in IRTAD countries and identifies and assesses methodologies for linking different sources of crash data. (Author/publisher)