Commercial services commence on Basel Tramway Line 3 extension Phase I August 15, 2017 | Europe News Basler Verkehrs-Betriebe (BVB), the transport authority of Basel in Switzerland, has commenced service on tram Line 3 extension Phase I, which spans 500 metres from Burgfelden Grenze to Burgfelderhof ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password