Simplon Tunnel
In 1915, nine years after the opening of the Simplon Tunnel, the direct Frasne–Lausanne line, including the Vallorbe railway station, was opened in conjunction with the piercing of the Mont d'Or. The doubling of the tracks were completed in 1908, and it was electrified in 1925. Since 1984, the station has also been served by TGV trains.