Construction begins on Vienna U-Bahn U2xU5 project, Austria October 9, 2018 | Europe Company News Construction has begun on the Vienna U-Bahn U2xU5 project, which involves extension of Line U2 and construction of Line U5. Work has started at the Matzleinsdorfer Platz station of Line U2 extension.&... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password