projet urbain (French Edition)

What do we mean by urban structure and form? Who decides what form a city should take, what structure it should assume? The layout of a city is informed and linked to its development and renewal. The structures, forms, contours and divisions we find in a city are often the result of immense technical planning. Yet often these forms quickly escape the original conditions of their creation and end up being constraints. If in the past a harmonious relationship existed between urban planners, a city, and its inhabitants, today, the idea of development is more challenging than ever. Indeed, urban planning is full of theoretical and practical difficulties. This book explores the gap between urban theory and practice, and defines the problematic of urbanism with the following question: are technicians capable of contributing to the development of cities not just stretching it into a sprawl or increasing the number of buildings within its ever-expanding frontiers? And are the inhabitants themselves capable of adapting to the changing lifestyles and economic exigencies of a growing city? Panerai and Mangin skillfully probe these questions, drawing from official reports, analysis and treaties on urban planning starting from the early 20th century. They comment on the most significant examples of city planning, examining the contours, divisions, lots and structures one finds in cities and their relationship to the localized space that they occupy.

Les formes urbaines incluent des trac s, des d coupages, des dispositions mat rialis es, construites, inscrites sur le sol qui conditionnent les capacit s de d veloppement et de renouvellement des activit s sur un territoire. Inscrites dans une longue dur e, ces formes chappent rapidement aux conditions de leur cr ation ; de produits elles deviennent contraintes voire causes. Trop de ruptures sont intervenues dans les th ories et les pratiques de l urbanisme et la r flexion doit tre reprise la base. Cet ouvrage, qui s apparente un manuel o se m lent constats et analyses de la r alit et propositions, renoue consciemment avec les trait s d urbanisme du d but du xxe si cle. 11 traite successivement des d coupages, parcellaires et de leur ordonnancement en fonction des types b tis, situe l espace de la voie dans ses relations avec les terrains desservis et aborde plus grande chelle la constitution du tissu et l tude des grands trac s avant de mener une r flexion sur les activit s et leur localisation.