Cities of Linz and Graz open tram extensions September 13, 2016 | Europe News City-owned Linz AG, the developer of Linz Tram, has opened the tram Line 3 extension, which spans 1.8 km from Trauner Kreuzung to Schloss Traun, covering three stops. Earlier, in February, Linz AG had... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password