How does one figger this out? By miles traveled? Long-haul truckers get hit by each state through which they travel. No doubt the trucking fees are high. But if on a per-mile basis, I wonder, compared to the gas taxes paid by personal vehicle travel, which would likely be far less. (FWIW, trucks do far more damage to roads then cars, whether long-haul, regional, or local.)
I agree they do more damage due to weight. I thought it was info based on a per mile basis, which seems the best metric to use, but I don’t recall specifically. If I have time later I’ll try to look it up or hopefully a FReeper in the industry can provide better info.