Toyota and Uber to develop autonomous cars
http://www.metro-report.com/news/business/single-view/view/toyota-and-uber-to-develop-autonomous-cars.html
Judging from the fact that most of the railways around the world have not yet been automated, it's more difficult to expand autonomous cars.
Unlike railway systems, vehicles have to decide which directions they want to drive.
It's not only the problem with vehicles, but also the problem with signalling systems that has to be improved.
For example, brightness of each signal differs. It may cause the problem that engineers can not decide minimum brightness to respond automatically.
It seems to be a long way before commercial use of autonomous cars.
