Idk Chicago's transit is really good. It's getting crowded in some places, but still great. It of course has an advantage - it's been around so long that the c

Idk Chicago's transit is really good. It's getting crowded in some places, but still great. It of course has an advantage - it's been around so long that the city has grown around major transit lines, so the things you want to do are all grouped around & easily accessibly by transit. If you take a city like LA or Houston that has zero centralization and just slapped transit lines down, they would have trouble servicing everything and average person wants to do - maybe you can get to work on the line, but not the gym or grocery store. Still, it would reduce car traffic, and over time it would encourage the desired grouping around transit lines that is part of what makes the transit so helpful in the first place. I don't think it could ever fully replace cars in most places in America, as they are so spread out and many people will still want to travel between cities by car. However, even just getting most people to get to their 9-5 jobs via transit instead of car would be a massive reduction in congestion & pollution.