Can we just get some real public transportation options in the USA? I've visited Washington D.C., Boston, and New York City recently, and I'm in love with the subway (etc). Where I live would still require a car, but afaik, none of the major cities around me have anything more than a lackluster bus system.
Ok, hear me out: What if we were to dig a system of narrow tunnels under the city, and then let people drive through them. Of course, cars would need to be on some form of automated tracks to make it safe. Then you could link up multiple cars and make long lines of cars following the tracks to the same destination.
It's a brand new concept, I know, but modern problems require modern solutions. Maybe we can sell hats and flamethrowers to generate support.
There could be rapid trains between major city clusters and light rail networks within those cities, so you could, say, take a light rail from your neighborhood to the central hub, then a fast train to another city, then a light rail to your destination.
I'm not saying NYC to LA, but NYC to Philly/Boston/DC and LA to Albuquerque, Vegas, Salt Lake City, even Denver.