“IDEAS CHANGING” PROCESSES OF EUROPAN’S IMPLEMENTATION DEBATES OF THE FORUM OF RESULTS EUROPAN 12 VIENNA MAY 2012 DEBATE 3 CREATING URBAN FLUIDITY THROUGH A POROUS URBAN FABRIC Making the city by creang fluid routes that can accommodate different kinds of mobility is a priority in today’s urban projects. Architects seek to make the urban fabric porous. Buildings, while connuing to play their role in bounding tradional public spaces (streets, squares, etc.), allow cycleways and footpaths to pass through them. But how do you build these intermediate spaces and give them a public character, while protecng the pri- vate dimension and the security of the transit spaces?