Chile's region V rail operator Metro Regional de Valparaiso (Metro Valparaíso) operates as a subsidiary of Chile's state-owned railway firm EFE. The company runs a railway from port city Valparaiso to the town of Limache. Metro Valparaíso operates a double-track electrified railway extending 43km and 20 stations connecting the cities of Valparaíso, Viña del Mar, Quilpué, Villa Alemana and Limache. In 2008, the company added the bus-to-train transfer service, further connecting Limache Viejo, La Calera, La Cruz, Quillota and Olmué. The system is both underground and surface-level depending on the location. In 2015, the company transported more than 19 million passengers, when it added 8 new trains to its fleet, Viña del Mar-based Metro Valparaíso was incorporated in 1996, although its origins can be traced back to 1863 the year the railroad track between Valparaíso and Santiago was first inaugurated.