Why does public transit have to be 2 hours? If you replaced every 30 cars with one bus, you could run one bus every minute, the bus could travel much faster bec

Why does public transit have to be 2 hours? If you replaced every 30 cars with one bus, you could run one bus every minute, the bus could travel much faster because there are no cars clogging the lanes. It is simply more efficient and potentialy faster.