I think this stuff makes sense for somewhat dense and populous cities; that said, I do think that the fragmentation of cities in places like the Bay Area could

I think this stuff makes sense for somewhat dense and populous cities; that said, I do think that the fragmentation of cities in places like the Bay Area could use some generalization (way too many independent, disagreeing suburbs that prevent rational coordinated action. Ridiculous numbers of transit authorities and inconsistent coverage with existing rail make the experience terrible).