Self driving buses will be smaller, more flexible, and less of a hindrance to traffic than current buses, because there will be no need to amortize the cost of

Self driving buses will be smaller, more flexible, and less of a hindrance to traffic than current buses, because there will be no need to amortize the cost of a driver over so many passengers. Self driving cars will reduce the cost of Uber-like services as well, and lower the cost of tunneling (self driving cars will mean higher capacity and smaller shoulders and lanes, and electric cars will mean less ventilation required). Going underground is the best way to increase travel speeds and reduce friction between pedestrians and vehicles. Cities should look more like Venice.