https://www.citylab.com/equity/2012/03/us-urban-population-w...
I assume that number has only gone up since 2010.
"Urban areas" includes where I live, which is not dense enough for public transportation to work well. Reading the article you cited, it looks like about half of the population labeled "urban" by the Census Bureau lives in areas that are like mine (or even less dense).
You lose me here. I live in a major metro area and public transportation works fine, even out into the suburbs where it is not as dense, but the public transit spokes out to the major hubs and people drive to those transit stations and park for the day.
Public transportation works for the vast majority of the country.
- Walking, biking, etc. are out since there's very little mixed-use land. Getting out of your residential area is already outside what one could reasonably be expected to bike. Your nearest grocery store is even further.
- Fixed path transport is always being proposed but getting the coverage and schedule that would make people give up their cars is always ludicrously cost prohibitive. There are too many areas to hit and few people in each area which makes each stop basically unprofitable.
- Buses face exactly the same problems. Within the densest parts of the city they work well but they don't work well in sparse residential areas because it's not profitable to run them at convenient schedules for small populations that trickle in and out.
And we're talking about millions of people. Rearrange everything isn't exactly a viable path forward.
You misspelled "in most places in the US public transport cannot meet people's needs". Yes, it can in inner cities, but most of the US is not inner cities.