The third principle proposes the installation of an extensive plant canopy, nestling within the density of the buildings of Cerdà’s Barcelona. This plant cover will articulate the green public thoroughfares of the eastern part of the city (Trinitat - Sagrera - Ciutadella, Carretera de Ribes - Clot, Rec Comtal and Diagonal), serving as a powerful environmental corridor and climate regulator. The fourth principle entails the incorporation of an intensification device, represented by a constellation of ‘nodes’ that punctuate the space of the park. Primarily composed of plants organized vertically, there will be two kinds of nodes: micro-nodes and macro-nodes. The micro-nodes, small spaces inaccessible to the general public, will be refuges for biodiversity, an essential haven for flora and fauna. Meanwhile, the macro-nodes will play host to numerous activities as the main meeting places in the park.