Key Data:
Operator
Metro de Madrid SA
Maximum line speed
Sub-surface 80km/h (50mph); surface-level 110km/h (67mph)
Passengers carried
575 million
Electrification:
Rolling Stock:
Number of vehicles
1,338 cars (700 on order in 2006)
Special Characteristics:
One of most extensive metros in the world
Rapid expansion since the 1990s
Trains run 20 hours per day
Extensions matched by major new car parks
Security guards patrol trains for extra safety