I don’t think the killer market for driverless cars in America in the first place. Places like China that have all that (commuter rail, subway) but lack places for new roads and parking would benefit greatly from optimizing their limited road infrastructure. They already have people who are used to taking taxies everywhere, now make the ring roads automated only to triple their capacity.

Europe, Asia, can be benefit greatly from driverless cars because they have a different situation from America.