Public Transportation in the San Francisco Bay Area

 https://en.wikipedia.org/wiki/Transportation_in_the_San_Francisco_Bay_Area#Public_transportation

https://futuretravel.today/bay-area-2050-the-bart-metro-map-ab83b22d3d8b

https://www.mercurynews.com/2021/01/27/sacramento-to-san-francisco-by-train-check-out-the-bay-areas-dream-rail-map/