Implementing the Supermanzana approach in Barcelona. Critical issues at local and urban level

To improve neighbourhood liveability and urban sustainability, Barcelona is seeking to re-organize its urban structure into superblocks, designed to discourage cut-through traffic and promote multiple uses of street space. Despite its potential, this approach is not without its limits, that should be properly taken into account. The implementation of the Supermanzana model in the Poblenou neighbourhood is explored in this paper to analyse its potentialities and constraints. Temporal synchronization between the urban level and the neighbourhood level turns out to be particularly important to reduce conflicts and criticalities.