Dubai has the world's largest, completely automated, driverless metro line — and it shows how far behind the US really is - Business Insider

Dubai's metro is as futuristic as it looks. Dubai has the world's third-largest automated, driverless metro system, a futuristic and highly reliable system that opened in 2009 and continues to be expanded. ....
https://www.businessinsider.com/dubai-automated-driverless-metro-2018-11