Rem designs Highways?

I'm not sure whether to think of this as the downturn of architecture, or the upturn of roadtrips, but OMA's designing schemes for the existing motorway between Amsterdam and Antwerp. Called A4 Corridor, it aims to

reinvigorate the lifeline that connects the major cities of the region. Aiming to organize the metropolitan infrastructure, it will set the stage for Rotterdam, Amsterdam, and Antwerp to become major players in the global field.

The concept is interesting, and unusual. Lets hope the project gets past the schematic phase!