> If you want to guide left-turning vehicles around the right lane you need to put something IN FRONT of the lane you closed. The important point is that a hum

> If you want to guide left-turning vehicles around the right lane you need to put something IN FRONT of the lane you closed. The important point is that a human driver (as all the human drivers in the video) has no trouble. A lot of driving is not by the book, but humans coordinate and go with the flow. The software in these cars breaks down as soon as anything unexpected happens.