The PRACT Repository is a new online road safety toolcontaining the most recent Accident Prediction Models and Crash Modification Factors, highlighting effectiveness of road safety infrastructure measures worldwide, for use by road safety decision makers and practitioners worldwide. 

This Repository has been developed within the framework of the project PRACT, (Predicting Road ACcidents-a Transferable methodology across Europe) carried out by the University of Florence, the National Technical University of Athens, the Technical University of Berlin and the Imperial College London, commissioned by theConference of European Directors of Roads.

The basic assumption on which the PRACT Repository is built is that Accident Prediction Models (APM) and Crash Modification Factors (CMF) can be transferred to conditions different from the ones for which they have been developed, if selected based on scientifically valid criteria and adapted to local conditions based on historical crash data.