Automated cars and trucks will become much more able then human drivers and that could create chaos. For example, suppose you want shift from the middle lane to the fast lane and your vehicle knows it can do it with a full six inches of clearance and all of a sudden you have a car only six inches in front of you. It could get to the point at which you know that the computers are super trustworthy but can a human mind be in such a vehicle without wearing a blind fold? Seeing heavy objects at speed coming so close to you will cause some very primitive emotions to take place. Also imagine the effects that this sort of thing would have on a motorcyclist. The fear of getting wiped out may be overwhelming. I am all for autonomous cars and trucks but it will have strange effects that very few people are taking into account.