[kristopolous]

This was the claim of ride-sharing about 10 years ago but studies showed the opposite, that it actually increased congestion.

Clean, effective, prompt, affordable, quickly constructed mass transit however, does seem to work.

I'm not anti-robo-taxi or pro-mass-transit. Instead, if the value is fewer cars and less carparks, mass transit with the aforementioned properties has been shown to work.

Sadly the United States has been unable to hit those notes with their projects (LA's metro, for example, is still constructing approximately the Prop A system approved by voters, in 1980, 44 years ago: https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Lo...) so in that specific case, it's murkier.