3 ms·
The heavier the vehicle, the more damage it does, ~exponentially. Freight trucks use more fuel (and so, fuel taxes) and have more fees and such but nowhere near
by shantly 7y ago
The heavier the vehicle, the more damage it does, ~exponentially. Freight trucks use more fuel (and so, fuel taxes) and have more fees and such but nowhere near enough to make up for the extra damage they do.
- jcampbell1 7y agoIn the US we have maximum weight limits and it is enforced with weigh stations. I have wondered if tire pressure limits would be more effective at preserving the roads. Cars put about 35psi on the roads and trucks put 80-100psi.
- robocat 7y agoIt isn't as simple as X kPa does Y damage. Damage also occurs due to dynamic loading, which depends upon suspension, tire weight, weight shifts between axles, and braking action (frictional horizontal loads).
- rleigh 7y agoRoad damage is proportional to the fourth power of the axle weight. Adjusting the tyre pressures won't have any appreciable effect. Halving the maximum lading weight would reduce the damage by a factor of sixteen.