There are trams operating on nine systems in seven Swiss cities. Street-running tramways are nearly all 1,000 mm (3 ft 3 3⁄8 in). The Chemin de fer Bex–Villars–Bretaye (BVB) in Bex is more of a mixed interuban light rail line connected to a rack railway but it does have some street running portions, particularly in Bex where the BVB operates along the right of way of a tramway system originally built in the 1890s.