> I'm fine with increasing passenger miles as long as passenger-CO2 and passenger-congestion go down Yes but the idea that people will opt for a minibus over a

> I'm fine with increasing passenger miles as long as passenger-CO2 and passenger-congestion go down Yes but the idea that people will opt for a minibus over an individual taxi when the cost is trivial is optimistic. The marginal cost for a trip is gas + maintenance. The way to drive down emissions is to make people pay for them. One of the "advantages" of driverless is that passengers will likely become less sensitive to congestion (because they're reading or sleeping). It's again hard to image much effort going into reducing congestion if people are less likely to notice it. I don't see how this scenario reduces emissions or congestion.