Interesting, though I think this misses the whole story. (In particular, BART at peak hours was dangerously congested, though I won't argue with data showing that other uses declined enough that the average was below zero.)

But perhaps this speaks to your broader point about car ownership and public transit use. Even SF itself has more registered vehicles than inhabitants.

> There were 8% fewer transit (bus and rail) trips in the Bay Area in 2018 than in 1982

Btw, I'd be curious to read the source for this!