‘The Besòs River has become a structural element'

Green infrastructure is the set of free spaces of urban land and non-development land, which form metropolitan public space. The metropolitan area is very dense and compact, and green infrastructure can be used to construct free spaces.

The Besòs River is an emblematic place for green infrastructure, as it joins the marine and forest ecosystems and is the backbone of five highly populated municipalities.
The challenges of green infrastructure are: know how to define or redefine the contact between urban and non-development land, and structure, support and create pivotal elements that define green space guidelines.