Louvain-la-Neuve also has an interesting take on this. Like Ghent it's a student city but it's also a planned city, and was built as a "two-levels" city, buildings sit on top of a huge concrete "slab" and topside is completely car-free, with roads & parkings downside.
Not having to "burn" any surface on carspace makes the city pretty inherently walkable.
One issue is I don't remember the public parkings providing electric plugs for EC.