@14mission @Alon @mekkaokereke The average in Australia is 1.1–1.2 passengers per car.
I haven't checked, but would imagine the average would be similar in the US.
So if you have a lift that carries 1 car per minute, that's just 60 cars per hour. Which means, on average, 66 – 72 passengers per hour.
For context, a single articulated bus seats around 75 passengers; Sydney's trams carry up to 400 passengers.
But it's worse than that.
Because in his future, he wants robotaxis, which potentially drop the passengers per car below 1.
So at, say, .9 average passengers per car (something that can't be achieved without robotaxis), 60 cars an hour turns into just 54 human passengers.