Potsdam South Train Station opened in 1958 at the intersection of Berlin’s outer ring rail line and the regional rail line from the city center to Michendorf. It gave residents of Potsdam direct access to Schönefeld Airport and East Berlin via the outer ring without traveling through West Berlin. In 1960 the station was renamed Potsdam Central Station, and it remained a busy transportation hub until the unification of Germany in 1990. In 1991 the station stopped servicing intercity trains, as they were traveling to Berlin via the central (and…