The  study concerns the River Ripoll space, a major tributary of the Besos in the  metropolitan area of Barcelona. It  defines the main features of the river "blueprint" a strategic area  for the great Barcelona. Along the river confront two different rationalities:  that of natural dynamic, systemic, complex and fundamentally unitary and urban  rationality as complex but fragmented and diverse, often contradictory. 
            The  study is divided into parts that each conclude with a scenario: first, the  river as an ecological object, made with the " reasons of the river  " scenario, in extrêmisant opportunities to return to large areas of  expansion water. The second part (the river  as an object of rationalization, expression of a hydraulic safety research,  energy production and related industrial production) and the third (the river  as political and social object) articulated two scenarios that ask "reasons of the city." In  a scenario of " introverted river " that extrêmise current trends and  leaving the Ripoll in the current position of marginality in relation to cities  nearby. The  inland area is privatized and inaccessible because of vegetable gardens,  industrial tapes, major infrastructure that fragment . What  future for this type of relationship with the river, also motivated by social  and productive reasons? 
              On  the other side the last scenario explores the consequences of extending the  urban area to the river: it is to overcome the barrier, to invent a new public  space for activities related to habitat and at the metropolitan level. 
          The  three scenarios are not projects, or better they are special forms of project  that question the possibilities that can talk about the future clarifying the  different logics that define the arena possible. They do not build free or  simplified contradictions, but they require to make explicit the points of  conflict and so they require to go deeper into the possibilities of coexistence  of different viewpoints.  |