Heavy vehicles are the only thing that can put any meaningful wear on roads and streets, due to the https://en.wikipedia.org/wiki/Fourth_power_law that says that the wear on the road is a function of the fourth power of the mass of the vehicle over the number of axles. A car puts 160,000 times as much wear on a road as a bike does, and the step up to heavy transportation vehicles involves a similarly massive jump. Every time a heavy truck moves a shipment over our roads, there is a real cost that we have to pay in maintenance that has no equivalent for personal vehicles.
Heavy vehicles are the only thing that can put any meaningful wear on roads and streets, due to the https://en.wikipedia.org/wiki/Fourth_power_law that says that the wear on the road is a function of the fourth power of the mass of the vehicle over the number of axles. A car puts 160,000 times as much wear on a road as a bike does, and the step up to heavy transportation vehicles involves a similarly massive jump. Every time a heavy truck moves a shipment over our roads, there is a real cost that we have to pay in maintenance that has no equivalent for personal vehicles.