OUESTRAIL is committed to the development of performing railway connections in Western Switzerland. It focuses on the international, national and interregional offerings, regarding both the passenger transport and the freight transport.
The OUESTRAIL association was born in August 2004 from the merger of the CISL (Communauté d'intérêt de la ligne Simplon – Lötschberg, ie. community of interest of the Simplon – Lötschberg line) and the CITAJ (Communauté d'intérêt des transports ferroviaires de l'Arc jurassien, ie. community of interest of the railway transports from the Jura Arc).