Abstract
This article argues that especially at the regional level the interaction between land use and traffic is vital: "sprawl is the key-issue for conurbation-wide traffic calming". The author adds fiscal policies as a third pole. He analyses the changes in France and especially in the Paris region. Traffic between the suburbs is the hottest issue at this moment: it grows faster and it is more car dominated than the radial traffic. In view of the importance of land-use, the author looks at the possibilities for a more compact urbanity on different levels. Among his suggestions: extend the principle of priority for less "space-consuming" travel modes to the highways and freeways, for example through high occupancy lanes. (A)