This is timely. You might want to go take a look at this poll. I just read about it today in the online magazine Slate. It is contest for people to offer ideas, vote and comment on ways to improve transportation infrastructure.
Nimble Cities
Help Slate make transportation in and between cities more efficient, safe, and pleasant.By Tom Vanderbilt
Updated Tuesday, June 15, 2010
In the plethora of ideas, restructuring Gas Taxes is one of the ideas entered. Enjoy.
http://www.slate.com/id/2256666/