The Estación de Madrid-Chamartín Clara Campoamor is the second major railway station in Madrid, Spain. Located on the northern side of the city, it was built between 1970 and 1975, but more work was carried on into the early 1980s. It then superseded Atocha station, which is located just south of the city centre. However, as the AVE network expanded with a hu…The Estación de Madrid-Chamartín Clara Campoamor is the second major railway station in Madrid, Spain. Located on the northern side of the city, it was built between 1970 and 1975, but more work was carried on into the early 1980s. It then superseded Atocha station, which is located just south of the city centre. However, as the AVE network expanded with a hub at Atocha, Chamartin again became Madrid's second station by passenger volume.