I am not talking about the big cities. Setting up a alternative transportation system in the more sparsely populated areas of the US is what I am talking about. I have been to Paris and rode their subway everywhere and rode the train out to Versailles and the Musee De La Grande Guerre so I do see that a good train infrastructure could help because I could literally go anywhere I need to go using the train and my own two legs but most of the track and infrastructure to make that work in the US has long since been removed. A great many rail lines would need to be rebuilt and then expanded. This is a map of railroads in my current state in 1920, which is I think the height of railroads in Michigan. This is a map of railroads now, and most of those are freight only also - as far as I know, the only passenger lines left in Michigan are the Amtrak lines I just linked. It is clear to see that using, say, highspeed electric railroads, at the very least would require HUGE investment.