The Dubai Metro is the world's longest driverless rail system and one of the most advanced metro networks. It runs partly underground and partly via elevated viaducts. So far, green and red these two lines have been constructed.

Stock photo: The Dubai Metro is the world's longest driverless rail system and one of the most advanced metro networks. It runs partly underground and partly via elevated viaducts. So far, green and red these two lines have been constructed. was taken by sreerag3 .