Berlin Hermannstraße station the S-Bahn to Berliner Verkehrsbetriebe (Berlin Transport) in 1984, and after public enthusiasm for it increased, preparations began in 1989 for gradually reopening the Ringbahn beginning in 1992. The fall of the Berlin wall that November and the ensuing German reunification changed the plans: the stretch of Ringbahn to be initially reopened was extended into the former East Berlin and the reopening deferred to 1993. The Hermannstraße station was completely rebuilt in a new position under the bridge where Hermannstraße crosses the S-Bahn cutting, so that hardly any traces of the historic station remain. The new station has two entrance
Berlin-Wannsee station is that there is only Potsdam-Griebnitzsee shuttle until it was discontinued in 1962. Residents commuted only to East Berlin via the longer Berlin outer ring from Potsdam through regional express trains, and the only trains running on the Berlin–Magdeburg railway was transit traffic from the West Berlin via the GDR to West Germany and other countries. Later on, after the fall of Berlin Wall, the line was re-connected to Potsdam again. Reconstruction began in April 1991 and was completed in 1 April 1992. Between the fall of Berlin Wall and 1 April 1992, Potsdam was connected through the fastest way