01

Change the route before the paving

The Superblock approach reduces through-traffic within selected areas and gives more interior space to walking, cycling and public use. Barcelona’s later green-axis programme applies that thinking to connected streets, rather than treating every intervention as the same enclosed block.

The city’s March 2021 design brief makes the physical change specific. It names Consell de Cent, Girona, Rocafort and Comte Borrell as the first four Eixample green streets, with four new squares at junctions. Its requirements include a continuous level surface, pedestrian priority and more planting. The road is being redesigned for a different set of activities.

02

An implemented street is not a citywide result

The useful distinction is between changing a place and proving its wider effects. A study published in Environment International modelled health benefits for a projected citywide Superblock network. Those estimates are not measurements of what every completed street has achieved.

Moving traffic also raises a practical question: where does it go? A calmer interior should be assessed alongside boundary streets, deliveries, access and changes across the transport network. A good-looking square cannot answer those questions by itself.

Our reading: public space follows the rules that allocate it. The transferable lesson is to connect circulation, street design and evaluation, then examine what changes for people inside and around the intervention.

WHAT THE SOURCES SHOW

Municipal design brief · Design brief published 3 March 2021

Four green streets and four new squares

Barcelona’s March 2021 brief identifies the first four Eixample green streets and four junction squares, with pedestrian priority, level surfaces and planting.

What this tells us. This describes a defined design programme. It is not a measurement of citywide health effects or traffic displacement.

Sources (3)
  1. Barcelona City Council · Eixample green streets and squares, March 2021
  2. Environment International · Changing the urban design of cities for health: The superblock model
  3. European Court of Auditors · Urban pollution in the EU, 2025
Have a correction or useful update? Let us know ↗