There is but there is no buy in for it. The thing is that for all of its modern day climate virtue signalling, California is a State that embraced the motorcar like no other and is built around it. It is a giant pain in the ass to drive places and nobody is arsed. New York in comparison is very much back with buy in at all levels.
Been a fair bit to Silicon Valley in the last few years. Nobody walks anywhere. And nobody cycles. Itās impossible to do either. Any time I did walk or get a bus it was just me and the down and outs. It wonāt change anytime soon either. To get people out of cars youād have to demolish the entire area and rebuild from scratch.
Itās the same in most of the US other than the more dense north eastern cities and Chicago- though only within the city limits, the suburbs there cannot be walked easily.
A function of size so as you say it canāt be rolled back. The big difference with somewhere like San Fran is that it could be an awful lot more dense and there would be a demand for more European style living (vs. a Texas where they mostly donāt care) but the locals are selfish & block all construction. It is actually disgraceful what goes on there and sadly Ireland has been cited as not far off on the NIMBY front.
Mate of mine lives in the suburbs of Charlotte. You basically canāt walk anywhere. There isnāt even footpaths if you wanted to. Itās also ridiculously sprawled out.
Apparently it is one of the least walkable cities in the US, which is saying something in itself