Line 8 of the Madrid Metro opened between Mar de Cristal and Campo de las Naciones on 24 June 1998. An extension to Barajas via Madrid Airport was opened in 1999 and in 2002 an extension to Nuevos Ministerios and Colombia opened. Originally this line was a small-profile line, but in 2002 it became a large rolling stock line. The line uses 4-car versions of class 8000 trains. In 2007 an intermediate station called Pinar del Rey opened between Colombia and Mar de Cristal, as did an extension to the new Terminal 4 of Madrid Airport.
Aeropuerto T4
The Madrid Metro is a rapid transit system serving the city of Madrid, capital of Spain. The system is the 14th longest rapid transit system in the world, with a total length of 293 km (182 mi). Its growth between 1995 and 2007 put it among the fastest-growing networks in the world at the time. However, the European debt crisis greatly slowed expansion plans, with many projects being postponed and canceled. Unlike normal Spanish road and rail traffic, which drive on the right, Madrid Metro trains use left-hand running on all lines because traffic in Madrid drove on the left until 1924, five years after the system started operating.
The closed Chamberí station on line 1
Metro de Madrid Diesel motors used for generating electricity before the Spanish Civil War
Typical Madrid metro entrance, designed by Antonio Palacios, at Tribunal station
Lago station in the old Line S (now Line 10) is one of the few surface stations in the Metro network.