RE: Autonomous Taxis: The Death of Trains and Buses

In places like Mexico City, where I live, it's really hard to imagine the streets (avenues, highways, and our inter-urban two storied eight-lane Periferico) getting even more vehicles. It doesn't matter if they are self-driving, human driven, or some kind of hybrid. Traffic jams are already such a nearly constant phenomenon, that adding to it would seem infeasible. As for the metro, they are typically just as jam-packed with people, but at least they get you through the city at a decent speed.