Green oases will spring up in Barcelona's L’Eixample district, Source: Ada Colau via Gergely Karácsony

Reclaiming city streets from cars, Barcelona style

Reclaiming city streets from cars, Barcelona style

Following the green transformation of several neighbourhoods, the Superilla Barcelona scheme will move on to L’Eixample district, with work starting in June 2022

Say Barcelona and conjure a sprawling, sun-bathed city with endless beaches, Modernista architecture punctuated by Gaudi landmarks and mouth-watering cuisine. An almost perfect picture, had it not been for one thing - the unrelentingly heavy car traffic and the ensuing noise and pollution. The majority of Barcelona inner city areas regularly exceed WHO nitrogen dioxide limits of 40 micrograms per cubic metre, with fine particulate matter also above the norm.

According to 2020 data, Barcelona had 6,000 private cars per square km, the highest number among EU cities. And while cars proliferate, pedestrian and community public spaces dwindle at a fast rate. How is Barcelona coping with this problem?

Superilla Barcelona kicks in

In 2000, the new city leadership headed by pro-independence mayor Ada Colau launched a 10-year plan to create green zones in the heavily polluted central L’Eixample district and other areas. These peaceful oases in a bustling city do not ban, but discourage car use, giving priority to walkers and cyclists.

The scheme, conceived back in 2016 and now radically extended, was dubbed Superilla or Superblock, evoking the grid of straight avenues and octagonal blocks created by urban planner Ildefons Cerdà who shaped L’Eixample’s modern outlook in the early 20th century.

Addressing the environmental concerns of the 21st century, the plan puts several city blocks in a cluster, closing them off to through-traffic with the help of low-cost interventions: potted plants, picnic tables, and benches installed at spaces used for parking. The green zones come also equipped with children’s playgrounds and fountains, as well as cycling lanes cutting through.  

Innovative street model

Despite the opposition of car lobbies, the Superblocks plan received widespread public support. And following the creation of green zones in a number of neighbourhoods such as Sant Antoni, Poblenou and Horta, the municipal government announced last week that it was moving on to L’Eixample, the district with the most pollution and fewest public spaces.

Works are set to begin in June 2022. The initial projects, including the creation of four large and 31 smaller squares, as well as four green streets, are worth EUR 52.3 million.  

Starting with the four streets - Rocafort, Comte Borrell, Girona and Consell de Cent - a new street model will be implemented in all transformational projects across Barcelona. The concept envisages fostering everyday life in public spaces, stimulating sustainable mobility and local commerce, while simultaneously reducing car noise and pollution.

Here is what the new street model entails:

  • Pedestrians will have a top priority. Speed limits of 10 km/h will be introduced for motor vehicles, effectively giving them a guest status. Urban services and emergency vehicles will have unrestricted access.
  • Streets will have no curbs. Asphalt will be replaced with typical panot paving stones and granite slabs.
  • The streets will be fully accessible and equipped with guiding elements, tenji block paving, traffic lights, and signage.
  • More benches, fountains, play areas and tables will be installed.
  • The current 1 percent of greenery will be increased to at least 10 percent with tree planting a top priority. Species with leafy foliage such as European nettle trees and lime trees will be planted in central street sections to provide more shade. The ground will be water permeable and a system for reusing rainwater will be installed.
  • Lighting will be renovated to cater to the needs of people rather than vehicles.

The four streets and squares are just the first stage in the major facelift to L’Eixample which will see 21 green streets and 21 large squares created by 2030.

Barcelona’s latest export product

The Superblock scheme (to borrow the words of Budapest Mayor Gergely Karácsony) is Barcelona’s latest international export product, which many other cities are already trying to emulate. Karácsony was captivated by the model’s efficiency during a recent visit to Barcelona in the framework of the Pact of Free Cities. Consequently, he announced on his Facebook page that for the first time this year, the Municipality of Budapest will issue a call for tenders, inviting non-governmental organizations to come up with ideas for the creation of green zones in the Hungarian capital.

Discover the planned transformation in our Gallery above.



Growing City


Smart City


Green City


Social City


New European Bauhaus




ECP 2021 Winner TheMayorEU