Justin Hyde is firmly in the camp that 'Vehicle-Miles-Traveled' (VMT) fees are coming - and the release of a GAO report last month may support that contention. Privacy concerns from GPS and collection costs are challenges that were considered.
Jan 14, 2013 Motoramic (Yahoo! Autos blog)
Two years ago a Dutch city embarked on a trial for distance-based pricing that placed a meter on the dashboard showing the price of the trip. The plan was scratched due to an election. In OR, VMT fee legislation for electric vehicles has stalled.
Aug 12, 2011 The New York Times - Environment
A draft is circulating within the Beltway showing the president's transportation reauthorization bill. High Speed Rail is in, as is a 'Livability Program'. Goodby Highway Trust Fund - Hello Transportation Fund.
May 8, 2011 D.C. Streetsblog