2 ms·Roads don’t get worn all at once.by DANmode 8mo agoRoads don’t get worn all at once.thfuran 8mo agoRight. They do it at a rate approximately proportional to the fourth power of the per-axle weight of the vehicles driving by. So really only the heaviest vehicles matter much at all.DANmode 8mo agoThey all matter, above the weight of a Smart car.