[azernik]

All of those scenarios are definitely a thing in sunny clear Oakland, CA. And San Francisco, where a lot of the testing has been run, is notorious for both its hostile and unpredictable driver/biker/pedestrian behavior, and for its fog. Rain and snow, which change the observed road surface, seem to be the harder problems.

[GFischer]

That said, no North American city comes within an order of magnitude of the complexity of driving in Latin America.

You can forget about traffic rules, and you very often have to check the other driver´s body language to make split-second decisions, and play a game of "chicken" to cross a busy thoroughfare (inch through, then force yourself in front of an incoming car and expect him to stop). Giving way to other cars means you might be stuck in a traffic jam, so drivers can be incredibly aggressive - and I wouldn´t want to drive with an AI trained to try to battering ram their way around.

There are cities where I wouldn´t trust myself to drive (Lima, Peru is one I've experienced firsthand).

I'm hopeful for self-driving, but it's going to be very tough (and might take decades to adapt to the third world)