La Campanya contra el Quart Cinturó : un moviment social urbà

This article is a case study of what is known as urban social movements. The term refers to the threat that is represented by urbanistic action.
We present an analysis of the internal and external aspects of the urban social movements as seen specifically in the Vallès Oriental and Occidental.
This urban social movement began as a reaction to the construction of the Quart Cinturó, initiated in 1994, and is still active.