No one is talking about spread out areas. This conversation is about US cities.
Pick a US city, then pick a neighborhood within that city you feel is emblematic of the pattern you observe. We've selected a few -- Seattle, Minneapolis -- go ahead and you pick one where a US city would not be able to support it. Then we can look at that example together.
Can you define city for me first? Not being a jackass. I'm defining them more broadly than you are, perhaps.
> This conversation is about US cities.
Yes, exactly. Massachusetts; specifically the area around Boston, has this problem. There's plenty of land set aside for public transportation, but it's significantly underused for the reasons I described a few posts above.
When I started going into Boston one day a week, I tried the commuter rail twice, but it was so horrible I decided it was easier, and more comfortable to sit in traffic. (Even though it costs about 1/3rd to take the commuter rail into Boston.)
I was expecting an experience like Caltrain, I used to take it between Palo Alto and San Francisco and it was delightful. Not only are the trains more reliable, the seats are comfortable too.