The end of the A12 transformed into an urban boulevard

Status : Study

The "Parkway 21" project concerns the restructuring of the R21 route in Laeken/Neder-Over-Heembeek, by upgrading the end of the A12 motorway to an urban boulevard. The project covers the 3 kilometre stretch between the regional border and the canal at the Van Praet Bridge. Its ambition is to ensure the urban and environmental integration of this major traffic route, to improve the living environment of local residents and to promote soft mobility.

This project is therefore anchored in the philosophy of the new GoodMove regional mobility plan.

The road space will be rationalised to make room for a mixed space along the Neder-Over-Heembeek residential areas and connecting the parks of Laeken into a virtually continuous green space.

Some benefits of the project :

  • creation of reconnected and publicly accessible green spaces (the spaces between the two directions of traffic are currently lost as they are inaccessible and fragmented)
  • creation of a complete cycle route (RER bicycle connection), thanks in particular to a footbridge at the roundabout and a cycle route, taking advantage of a continuous green axis
  • Maintaining accessibility by car and fluidity while reducing noise pollution thanks to the new configuration of the road (reduction in speed, removal of traffic lights);
  • optimal connection to the future tram towards NOH, PMR accessibility of the stops.


The equivalent of 14 hectares is directly reclaimed from the road space and transformed into a green space, stretching over 3 kilometres and very well served by public transport. From the point of view of mobility, the project rationalises the number of traffic lanes for a more "urban" configuration and road traffic will be more fluid.

This project is of course coordinated and designed to complement the STIB's future tram 10 project in Neder-Over-Heembeek, which is also soon to be put to public enquiry.

Next steps

Urban Brussels will now analyse the application for planning permission in depth and set the dates for the public enquiry and the consultation committee. At the end of the public inquiry and the consultation committee, Urban will give its opinion and indicate any conditions to be included in the project.




General project information

Technical specifications


  • Neder-Over-Heembeek
  • Laeken
  • Brussels city

Contracting authorities

Bruxelles Mobilité

Place Saint-Lazare, 2
1035 Bruxelles
0800 94 001

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