[mwbajor]

"That’s not even remotely feasible"

Strong words, how do YOU know?

Get rid of buses and trains and replace them with 3 types of vehicles, 2 person, 4 person and 8 person. Keep reserves of vehicles in the train tunnels.

How can the contributors of HN not see a perfect application for variable packet sizes?

[nimbleplum40]

Would you also ban all private automobiles? I don't know how you're going to accommodate 1.3 million _extra_ car trips per day that currently (well, pre-covid) are handled by just the Lexington Avenue line alone. That's an insane amount of traffic. Streets would be completely gridlocked.