You look at a similar geographic area of population density. In this article they did just that, comparing central LA to SF, and found similar results for densi

You look at a similar geographic area of population density. In this article they did just that, comparing central LA to SF, and found similar results for density and modal share: https://la.streetsblog.org/2015/03/03/l-a-vs-s-f-how-does-transportation-really-compare https://la.streetsblog.org/2015/03/03/l-a-vs-s-f-how-does-tr...