ABSTRACT
For those who participated in the debates and campaigns over urbanism in the years from 1960 to 1970, city planning was an enterprise that was as much social as physical, designed to modify the forms of society as well as the shape of the city. This chapter shows how the sites of specialised knowledge of the city multiplied in the 1960s and 1970s, in both the state and diverse associations. It examines whether the composition of generalist residents' associations, in particular ADA 13, corresponded to the advent of new socio-professional categories addressing the problem of collective facilities, and hence to a social diffusion of expertise. Through the evolution of forms of mobilisation and kinds of campaigns mounted by ADA 13, the chapter explores how achievements and expertise about the city were diffused and how such learning was transferred outside the association to other spheres and to other actors.
