Per the report, road wear does not increase linearly with weight, so more semis at or near the weight limit will end up damaging the roads more overall. Page 9

Per the report, road wear does not increase linearly with weight, so more semis at or near the weight limit will end up damaging the roads more overall. Page 9 shows that even pickups cause 7x more wear than a passenger car. Additionally, any extra weight comes from the haul capacity of the truck, this means that more trips will be needed to move the same amount of cargo, and again causing a disproportional amount of wear on the road.