content: How about a light rail system but with smaller trains, and more of them? We have the technology to have self driving cars, so why not self operating trains with a central control station where operators can manually take control if something goes wrong, or if there are issues onboard. Each route to and from major centers would be their own little track as well, so while there might be some switching of trains to get to other places, the number of them should be good enough to reduce the time between stops.