[dpflan]

I think the trick is not to mix autonomous and non-autonomous. Cities delegate autonomous only zones where no non-autonomous cars can go; this creates a transportation circulatory system and safe experimental zone which can expand - which can include just making the area of city only for autonomous cars larger or gradual commingling with non-autonomous cars. Or again partial autonomy of cars on highways / more predictable driving scenarios, like we are already seeing.

[robbrown451]

That seems like the trick to making sure they are never adopted in a big way.

I mean sure, that's an easy problem to solve but in that case why use cars at all and not people movers or the like?

[sammyo]

But this is just wrong. Virtually the only accidents were people rear ending a stopped car at a red light. The current google cars are probably improving the general driving safety.