Siemens to test autonomous tram in Potsdam, Germany September 5, 2018 | Europe News Siemens Mobility has announced plans to test the world's first autonomous tram on a 6-km long section of the tram network in Potsdam (Germany) between September 18, 2018, and September 21, 2018.  ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password