Dive summary:

• Even before hybrids and all-electric vehicles, using a tax on gasoline tax fund road construction was a dying system because vehicle mileage keeps rising.
• The alternative is a levy based on how many miles people drive, which correlates excellently with their impact on the roads but can raise privacy issues.
• Oregon is addressing that with a pilot project in which 40 state workers have their road use either tracked by a GPS device, have it counted by a device on the car that cannot report where the miles were driven, or pay a flat fee based on estimated mileage that is reconciled with actual mileage when cars are inspected annually.

From the article:

"Trying to replace [the gas tax] is really difficult, because anything you try to do is so much more complicated than just pulling up to the pump and paying for gas." ...