There has been a trend toward a reduction in road risks in European countries, notably in France. The number of deaths on French roads dropped from 8,253 in 2001 to 3,963 in 2011 (ONISR, 2012). These results can be explained by a determined policy aimed at controlling speed and improving vehicles, but also by changes in infrastructures. Thus, in the urban planning field, many spaces have been redesigned in recent years using traffic calming techniques. Urban spaces differ in their design, in their socioeconomic make-up and in the attention paid to their physical treatment. My researches first focused on the possibility of improving safety through infrastructure and urban design. Starting with the technical aspect, I was interested in the roles of the actors involved and the challenges facing them. Then, my research became a work on regional safety management with a focus on transport safety as an area of complex system management.
