Comment by stcredzero

I am not sure the poor state of existing infrastructure precludes someone from building their own new infrastructure. Public transportation outside of the US is often run by private companies, and they make plenty of money.

It would be relatively easy (which is to say, it would be easier than doing it to private cars) to fit the municipal bus fleet with the equipment to also become automatically piloted "packets." For that matter, it would also be possible to bake-in such functionality to Tesla cars.