The objective of this project is to draft the methodological approach for the development of the “IRTAD and the Cities” network and database. The main output of the project will be the preparation of a report comprising a bibliography review, the identification of the necessary data, the definition of the most appropriate exposure data to measure safety,  the definition of the most appropriate road safety indicators, the definition of the knowledge base, city selection criteria and grouping, identification of analyses types and outputs and identification of the scope of the network of experts.