The previous time I looked, which was a while ago, federal fuel tax revenue in the USA and federal highway expenditures were about equal. Since then, fuel tax revenue has fallen behind highway spending; the required increase to even it out would be modest in absolute terms - something like 15 cents per gallon. States each have their own taxes and budgets, of course.
As for the road damage each car causes, it increases (roughly) proportional to the fourth power of vehicle weight. Semi trucks and similar heavy commercial vehicles cause almost all of the traffic-induced road wear, and passenger cars contribute very little. It’s likely the fuel taxes paid for a passenger car (even a relatively large one) are several times its marginal impact on road maintenance.
The fuel tax doesn’t even cover the damage your car does to the road.
That’s probably not true, but hard to calculate.
The previous time I looked, which was a while ago, federal fuel tax revenue in the USA and federal highway expenditures were about equal. Since then, fuel tax revenue has fallen behind highway spending; the required increase to even it out would be modest in absolute terms - something like 15 cents per gallon. States each have their own taxes and budgets, of course.
As for the road damage each car causes, it increases (roughly) proportional to the fourth power of vehicle weight. Semi trucks and similar heavy commercial vehicles cause almost all of the traffic-induced road wear, and passenger cars contribute very little. It’s likely the fuel taxes paid for a passenger car (even a relatively large one) are several times its marginal impact on road maintenance.