[Zhang Fei]

So the gasoline/diesl already taxes the user based on the drivers usage and fuel consumption. Low mpg vehicles pay the premium for the necessity or need of the high consumption.

This isn't news to me. The problem we have today is the increasing presence of EV's and hybrids, which decrease fuel usage (and thus, fuel tax payments) without decreasing road wear. Then there's the potential for the large scale adoption of CNG vehicles in the decade ahead. Ultimately, the gasoline tax will have to be reduced or scrapped in exchange for something that doesn't ignore the effect of non-gasoline burning road users.

[vortec94]

Could it be that the Highway Trust fund has been raided for mass transit projects in the cities at the expense of highways?