I don't think it matters which one is better - each has a niche to fill. I would much rather hop on a train and be in LA or Seattle in an hour, than get a self

I don't think it matters which one is better - each has a niche to fill. I would much rather hop on a train and be in LA or Seattle in an hour, than get a self-driving car and be there in 6+. But for short distance, cars or a slower, more traditional public are the better option (mainly because you can't have high-speed lines to carry people a few blocks at a time)