Its going to have a bigger effect on local government financing than anything else. In theory there will be a huge drop in red light / speeding / parking tickets that will smack the municipal bottom line pretty hard. That's why I'm not so gung ho about the prospects of automated cars. In order to make up for the loss of revenue municipalities will regulate the shit out of the industry, most likely treating it like a utility (for our own good, of course), and limiting the competition so that they have to buy (expensive) licenses from the city. It'll be Taxi Medallions Part 2.