The C-8 is a line and rail service of Cercanías Madrid commuter rail network, operated by Renfe Operadora. It runs from Cercedilla northwest of Madrid to Guadalajara railway station. The C-8 shares tracks for the majority its length with Madrid commuter rail service line while it also shares significant parts with lines , and .
Infrastructure Like the rest of Cercanías Madrid lines, the C-8 runs on the Iberian gauge mainline railway system, which is owned by Adif, an agency of the Spanish government. All of the railway lines carrying Cercanías Madrid services are electrified at 3,000 volts (V) direct current (DC) using overhead lines. The C-8 operates on a total line length of , which is entirely double-track. The trains on the line call at up to 32 stations, using the following railway lines, in order from west to east:
From To Railway line Route number (PK 19.7) (PK 0.0) Villalba-Segovia 110 (PK 37.8) (PK 0.0) Madrid−Hendaye 100 (PK 0.0) (PK 7.0) Risa Tunnel 900 (PK 0.0) (PK 18.3) Madrid-San Fernando de Henares 930 (PK 15.9) (PK 56.8) Madrid-Barcelona 200
List of stations The following table lists the name of each station served by line C-8 in order from west to east; the station's service pattern offered by C-8 trains; the transfers to other Cercanías Madrid lines; remarkable transfers to other transport systems; the municipality in which each station is located; and the fare zone each station belongs to according to the Madrid Metro fare zone system.
#Terminal of a service*Transfer station to other transport systems#*Transfer station and terminal●Station served by all trains running through it○Limited service station
Station Service Cercanías Madrid transfers Other transfers Municipality Fare zone #* ● Renfe Operadora-operated rail services Cercedilla ● — — Los Molinos ● — — Collado Mediano ● — — Alpedrete ● — — Alpedrete * ● , Renfe Operadora-operated rail services Collado Villalba ● , — Galapagar ● , — Torrelodones ● , — Las Rozas de Madrid ● , — Las Rozas de Madrid Pitis* ● , Madrid Metro line 7 Madrid Mirasierra-Paco de Lucía* ● , Madrid Metro line 9 Madrid ● , — Madrid * ● , , , , , , Renfe Operadora-operated high-speed and long-distance rail servicesMadrid Metro lines 1 and 10 National and international coach services Madrid * ● , , , , , , Madrid Metro lines 6, 8 and 10 Madrid ● , , , — Madrid * ● , , , , , , , Renfe Operadora-operated high-speed and long-distance rail servicesMadrid Metro line 1 at Atocha Renfe station National and international coach services Madrid ● , — Madrid ● , — Madrid * ● , Madrid Metro line 1 at Sierra de Guadalupe station Madrid ● , — Madrid * ● , Madrid Metro line 9 at Puerta de Arganda station Madrid * ● , Madrid Metro line 7 at Coslada Central station Coslada ● , — Coslada ● , — Torrejón de Ardoz ● , — Torrejón de Ardoz ● , — Alcalá de Henares * ● , Renfe Operadora-operated rail services Alcalá de Henares ● — Alcalá de Henares ● — Meco ● — Azuqueca de Henares #* ● Renfe Operadora-operated rail services Guadalajara
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