Contenu de l'article

Titre Le système des voies urbaines : entre réseau et espace
Auteur Antoine Brès
Mir@bel Revue Flux
Numéro no 34, octobre-décembre 1998
Page 4-20
Résumé anglais Working out a relationship between the spatial approach and the network approach to the study of road systems has become all the more urgent today, since it has become the responsibility of the road system to provide the linkage between urban areas and the mobility of those live there, between the global and the local. This article connects the urban road system with three properties, which participate in the nature of this area-network and determine certain consequences of urban planning as well. They are accessibility, mutability and imageability, and they make it possible to assess the aptitude of planning to participate in organizing urban areas, namely in maintaining the balance of supply of short- and long-distance travel, contributing to the perception and representation of territory, and integrating action connected with the road system into long-term strategies. Evaluating the quality of the service of the road system in terms of shape, or configuration, introduces here the notion of road density, which follows from a postulate that urban density, interpreted as the intensity of use of urban space, depends as much upon the density of roads as upon the density of built-up spaces. The notion of road density makes it possible to evaluate the spatial relationships between road system, urban space and buildings. The multiple capacities of the road system to organize urban space itself should bring about in the first place a preoccupation with this area-network. Paradoxically, this is the condition for providing alternatives for everyone, especially local authorities, to arbitrate between the global and the local, between time and territory according to which mode of travel is given priority. It is with respect to this alternative that the relationship between a spatial approach and a network approach to the urban road system appears today to be particularly operational.
Source : Éditeur (via Persée)
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