New indicators for road accidents analysis: the “collision matrix” and road users' risk profiles

Road accidents are a complex issue, and for a comprehensive analysis of the data, it is often recommended to use new indicators and innovative approaches rather than relying solely on traditional methods. In order to study the different features of all road users and their interactions, it is very important to relate the specific risk elements of the connections between users and vehicles on the road. The paper presents the new collision matrices, with reference to killed or injured involved, the information on the vehicle in collision with they had the crash, and the method used to build the new indicators.