Woltersdorf is located at the east from Berlin. Construction of 5.6 km tram line to link village with Berlin started in 1911 and completed with official opening at 17 May 1913.

Now single track line with two passing loops is served by three trams (three motor and two trailer cars, as part of line is served only by motor cars). This is one of few lines in Europe where one can still see Gothas, which were renewed in 1990s.

There are three more systems around Berlin in Potsdam, Schöneiche, Strausberg. Even some of these lines are partially within the city limits or at least within the same tariff zone "C" but are served by separate companies and not linked to the main system