Autonomous Cars Strengthen the Case for Dedicated Bus and Bike Lanes

As Jarrett Walker notes though, mass transit is still going to remain the best way to move large numbers of people through narrow streets. The one thing we’re not making more of in cities is space on the street. So fixed guideway transit, mostly rail, will still make sense because of the space constraints. We might have fewer total cars (the Eno Center thinks a single shared AV could replace between 9-13 personal cars without sacrificing mobility) but more of them will be in motion at any given time, rather than staying parked for 23 hours a day on average as is currently the case.