As of the December 2023 timetable change,[update] the S1 operates every 10 minutes between Wannsee and Frohnau and every 20 minutes between Frohnau and Oranienburg.[3]
Since becoming a numbered route in 1984, the S1's line colour is pink.[4]
Service history
The S1 was created along with the S2 and S3 on 9 January 1984, when the Berliner Verkehrsbetriebe (BVG) took over the S-Bahn network from the East German Deutsche Reichsbahn in West Berlin: however, the dilapidated state of the West Berlin network at the time meant that the first S1 trains did not run until 1 May 1985, when the line between Wannsee and Anhalter Bahnhof reopened.[5]
In 1990, the S1 was extended to Frohnau, while the S2 was curtailed to Gesundbrunnen.[6] It was extended to its present northern terminus of Oranienburg on 31 May 1992, after the reopening of the Berlin Northern Railway between Frohnau and Hohen Neuendorf.[7]