The Flemish Roads and Traffic Agency has appointed TM ViA12, a consortium of Jan De Nul Group and Willemen Group, to reconstruct the Londerzeel-South intersection on the A12. 

The A12 will be buried and lowered, featuring an underground tunnel for the planned light rail on one side and a bicycle path on the other. Above this, the ViA12 consortium will construct two bridges. Cyclists and pedestrians will have a safe and convenient crossing via a separate bridge connecting to the cycle highway. The other bridge over the motorway will offer a conflict-free connection for local traffic between Londerzeel and Westrode. The existing traffic lights at Londerzeel-South will be replaced by slip roads, improving the flow of both traffic on the A12 and local traffic. 

The project creates additional space for buffer basins and enhances connecting ditches, enabling better water collection and infiltration. Design improvements have minimized surface water runoff, reducing risks to residents and nearby natural areas. This initiative is part of a Public-Private Partnership, with the TM ViA12 consortium responsible for preparing, financing, and executing the works, as well as maintaining the infrastructure for 30 years. In spring 2026, TM ViA12 will start the reconstruction of the Londerzeel-South intersection.