[seibelj]

The libertarian sensibility is to make people who use the resource pay for it, so tolls are the correct way to pay for roads. If we could get a national system that charged based on the odometer, this would also be an option.

[irixusr]

well insurance companies have something similar now where they track your driving using GPS.

In principle I like that because you pay for the risk you are, but in practice it sucks because I have no way to force the insurance company to just use the data to charge me insurance and not to track my peccadilloes.