The subpar navigation and traffic avoidance are a function of road design in high density environments.
We know how to make that go away: create separated bus only right of way with traffic light synchronization.
We know how to make that go away: create separated bus only right of way with traffic light synchronization.
Yes. Buses are cheap, but slow and uncomfortable.
Buses are big and unmaneuverable. That makes them slow over long distances. In low densities, the size means lots of inefficient stops. In high density, the manoeuvrability means subpar navigation and traffic avoidance.
Buses are also uncomfortable. If you raise ticket prices to buy a better ride, the quantity demanded drops and one ends up with vans.
Vans are expensive because they need drivers. Driverless vans are superior to private cars and buses for their market. (Nobody is close to providing this.)