> You can solve almost all of those problems more easily by improving road design with knowledge we already have. Sure, to some extent. The knowledge we alread

> You can solve almost all of those problems more easily by improving road design with knowledge we already have. Sure, to some extent. The knowledge we already have about how to prevent e.g. cars killing children, pedestrians, and cyclists is that you slow them down (and separate them which also typically involves taking space from cars to make room). But as seen above in this thread, that kind of thing meets opposition from people who say you're "making good things in life shittier". > the areas where it't uneconomical or otherwise unfeasible to run rails. If you've never done this, I suggest taking a look at old maps of the US's passenger rail network. We had a lot more rail in the past than we do now.