Madrid had a similar situation with the trains stations. However all they has been connected by rail and metro. Main connection it's the train tunnels from Atoc

Madrid had a similar situation with the trains stations. However all they has been connected by rail and metro. Main connection it's the train tunnels from Atocha-Recoletos-Nuevos ministerios-Chamartin and Atocha-Sol-Nuevos ministerios-Chamartin. Atocha sinks all the train traffic that comes/goes from the spurh of Spain to Madrid. Chamartín does the same thing with the north traffic. Sol, Recoletos and Nuevos ministerios have a pivotal role, moving people from this two exterior stations to the center of Madrid.