I think it varies, actually. Nearly everything on the peninsula, and everything in the East Bay south of Oakland is pure car dependence. But SF, Oakland, and

I think it varies, actually. Nearly everything on the peninsula, and everything in the East Bay south of Oakland is pure car dependence. But SF, Oakland, and Berkeley grew up in the streetcar era and are still walkable with decent rail and bus service that can be readily improved when the cheap oil interval finally ends. The string of little towns from Concord to Walnut Creek to Alamo and Danville have walkable nuggets at the core of their sprawls and these can easily be connected by streetcar on the old Santa Fe rights of way if anyone wants to. Livermore also has a proper downtown and even mainline rail service to San Jose. Plus Livermore is dead level and you can bike all over it in no time. When driving becomes too expensive there is definitely going to be a lot of abandoned sprawl but there's also plenty of decent places to live. By definition, few people live in the sprawl. It's a shame that they wasted so much of their and your money building out those subdivisions in the middle of nowhere, but that's a sunk cost now.