Remember also that existing transit links are beyond fully saturated. It’s not really possible for people to switch to transit en masse before the decades it takes us to build bus terminals and train tunnels have elapsed. No public transit system has the slack to absorb the Bay Bridge drive-alone traffic, let alone 101 or 280. People physically won’t fit into the vehicles. There are decade-scale projects to address that, and I support them, but I don’t expect to see their fruits during my working life. Anyone working now is going to be retired by the time a second Transbay Tube starts passenger service, assuming we vote to fund it right now.