But you could get the same result, much quicker, by levying tolls so high that rush hour looks like 9pm. Then commutes would be quick, but must people could only afford to go by bus.

Edit: and I dare say people might prefer that after a thorough CBA since it might mean paying $10/day for some private bus service but also saving an hour in commute time while also being able to use the commute to get something else done. But the prospect of tolls that high and riding a bus have a big "ick" factor for a lot of people, so...