As far as I know, nobody's worked out how to do an interchange. Not everybody wants to go in a straight line. Some people want to turn. Burke says there could be bottlenecks when automated cars leave their designated lanes. That is a wake up call for the driver.
Experts do have some answers.
For example, to the question about a jack knifed truck. There's two responses possible. One is if there is no obstacle in the next lane, the convoy would make a lane change. Alternatively, the platoon would stop before we hit the obstacle. The computer would be much faster than a human.