The Dubai Metro Green Line opens today, September 9, 2011. The Green Line is 14 miles (23 km) long. When combined with the Dubai Red Line which opened 2 years ago, the system consists of 46 miles (75 km) of fully automated, driverless track.
The maximum running speed of trains is 55 mph (90km/h).
The combined lines are expected to transport more than 40 million passengers a year.
Image curtesy of Wikipedia.