Line 12 (Madrid Metro)

Line 12
Line 12 train at Fuenlabrada Central station
Overview
Other name(s)	MetroSur
Native name	Línea 12
Owner	CRTM
Locale	Community of Madrid
Stations	28
Website	www.metromadrid.es/en/linea/linea-12-metrosur
Service
Type	Rapid transit
System	Madrid Metro
Operator(s)	CRTM
History
Opened	11 April 2003; 21 years ago (2003-04-11)
Technical
Line length	40.6 km (25.2 mi)
Character	circle line, underground rail
Track gauge	1,445 mm (4 ft 8+7⁄8 in)
Route map Legend Zone ↑ San Nicasio Puerta del Sur Parque Lisboa Alcorcón Central Parque Oeste Los Rosales Universidad Rey Juan Carlos Móstoles Central Pradillo Hospital de Móstoles Manuela Malasaña Móstoles Sur Loranca El Vivero Hospital de Fuenlabrada Parque Europa Fuenlabrada Central Parque de los Estados La Pollina Arroyo Culebro Conservatorio Alonso de Mendoza Getafe Central Juan de la Cierva El Casar Los Espartales El Bercial El Carrascal Julián Besteiro Casa del Reloj Hospital Severo Ochoa Leganés Central San Nicasio Poza del Agua ↓ Puerta del Sur This diagram: view talk edit

Line 12, also known as MetroSur (Spanish for "MetroSouth"), is a line of the Madrid Metro inaugurated on 11 April 2003.^[1] Line 12 is a circle line that is not in the city of Madrid, but links five suburban towns southwest of the city, serving around one million people. The towns linked by Line 12 are Alcorcón, Leganés, Getafe, Fuenlabrada and Móstoles. Despite parts of the line running through uninhabited territory, there are no above-ground sections in an effort to facilitate future urban development. At a total length of 40.6 km (25.2 mi), it is the longest line in the network and even more extensive than Lines 9 and 10 with their appendages to the north and south. Despite this, Line 12 accumulated only about 32 million trips in 2018, down from 34.8 million in the previous year,^[2] making it the only line to lose users in that time and the third least used after the yet-to-be-completed Line 11 and the airport connection Line 8. This decrease was mainly caused by renovation works necessitating the temporary closure of sections of the line.^[3]

The line only interchanges with the rest of the Madrid Metro at one station, with a connection to Line 10 at Puerta del Sur. There are plans to extend Line 3 to provide a further interchange station at El Casar.

MetroSur is one of the longest tunnels in the world. At the time of its opening it was the second longest fully underground subway in Europe. As of 2024 it remains the longest subway tunnel in the European Union.