Later on, the track of the Berlin outer ring between Hohen Neuendorf and the Karower Kreuz was temporarily provided with a busbar and built an additional connecting curve between outer ring and northern railway at Hohen Neuendorf, so that from 19 November 1961 again a direct S-Bahn traffic to East Berlin was possible.

For decades, the S-Bahn trains from Oranienburg via Birkenwerder, Blankenburg, Ostkreuz to Schönefeld Airport; in the evening and weekend traffic partly to Spindlersfeld.

The passenger trains to the north to various destinations on the northern railway and to the branches in Löwenberg (Mark) routes to Templin and Rheinsberg or Neuruppin began in Oranienburg.

In addition, there were some trains between Oranienburg and Hennigsdorf on Birkenwerder and until the suspension of passenger traffic on these routes in the 1960s in the direction of Velten and Nauen Kremmen.

With the expansion of the ports in Rostock and Stralsund, the growing population in the north of the GDR and the increasing tourism, the importance of the Northern Railway and also the Oranienburg station for the long-distance and freight traffic grew.

In May 1992, the S-Bahn line reopened between Hohen Neuendorf and Frohnau and provides the direct connection from Oranienburg towards the Berlin city center.