It's honestly so weird that we're attracted to all of these 'crazy' schemes, while skipping out on the all sorts of far lower hanging, and sensible fruit.
From an energy generation point of view, this plan is pretty irresponsible. Solar installations have a relatively poor EROI as it is (for standard installations) for mid-latitude regions. Purposefully handicapping your solar infrastructure by putting on the road surface is particularly braindead in that respect. From a systemic view, it makes more sense to rip out the solar panels from the road way, and put it ontop of buildings, or really any where you won't get random occlusions, and ridiculous amounts of dirt.
I mean, I get the attraction of easily reconfigurable displays on your road surface, but honestly, the intelligence and power generation aspects of the idea should just be decoupled, and split out.