The toll of driving

I did read today in an actual newspaper (with the ink and paper. Remember?) that Congress is thinking of allowing tolls on traveled highways. Kevin Drum seems interested, but questions if it's worth the hassle. I have a couple questions myself.

First, wouldn't this turn into a big city tax sort of thing? Clearly people in L.A. drive more than those in, say, Topeka, so wouldn't Los Angelinos and New Yorkers end up paying even more taxes than they already do? And wouldn't the end result be more people living in tighter spaces in the city and force others to drive city streets rather than paying the costly tolls?

Then what's the solution, charging people to leave their driveway?

Second, Bush is opposed to raising taxes, but he's okay with tolls? What the big difference? The only thing I can figure is that it once again assaults the middle and working class (who have to drive to work every day and, if rush hour focused tolling comes on line, pay more to go home) while allowing those who can afford not to work a free ride. Family vacation, and you can't afford to take the private jet? Why not pay the national highway tolls?

Also, of course, a toll would do nothing to discourage SUV drivers. Hummers for everyone!

Anyway, perhaps it's just Pavlov's dog's reaction to another bill from the 109th Congress. If some can explain the merits, I'm all ears. Until then, I've got to go to bed.