alt Hacker Newsis it? i dont see the relevant other studies, and my initial assumptions would be that the median subway user is lower income than the median car driver in NYC, so transfering funds from car drivers to subway improvements would be progressive.
However NYC's transit is notoriously bad at spending, so not sure it would achive that. Which studies linked in this thread are you refering to? I cant see them.
Regular driving in large working cities is usually only done out of professional necesscity and people who drive for a living tend to be in lower socioeconomic bands.
How many people on Wallstreet do you know that drive to work?