I agree that weight should be a factor, but it needs to be nonlinear. Very light vehicles do not damage roads, while heavier vehicles cause disproportionately m

I agree that weight should be a factor, but it needs to be nonlinear. Very light vehicles do not damage roads, while heavier vehicles cause disproportionately more damage. A car causes some minimal amount of damage that adds up over time, but a car twice as heavy causes more than twice as much damage and thus should pay more than twice as much per mile. And because cargo trucks weigh significantly more when laden than when empty, it needs to be based on either the weight when laden or on the actual weight at the time.