The Berlin S-Bahn is a rapid transit system operated by S-Bahn Berlin GmbH, a subsidiary of the Deutsche Bahn. The Berlin S-Bahn consists of 15 lines and is integrated with the mostly underground U-Bahn to form the backbone of Berlin's rapid transport system. Although the S- and U-Bahn are part of a unified fare system, they have different operators: the U-Bahn is run by BVG, the main public transit company for the city of Berlin.
The S-Bahn routes all feed into one of three core lines: a central, elevated east-west line (die Stadtbahn), a central, mostly underground north-south line (die Nord-Süd Bahn), and a circular, elevated line (die Ringbahn). Geographically, the Ringbahn takes the form of a dog's head and colloquially known to Berliners by that name (Hundekopf). Outside the Ringbahn, suburban routes radiate out in all directions.
Generally speaking, the first digit of a route number designates the main route or a group of routes. Thus, S25 is a bifurcation of S2, while S41, S42, S45, S46, and S47 are all Ringbahn routes that share some of the same route.
Stations in brackets are serviced at certain times only (Monday - Friday during offpeak in the case of S47 and during peak in the case of S8 and S85).
Daytime and nighttime service
The normal daytime service runs fundamentally between 04:00 and 01:00 Monday - Friday, between 05:00 and 01:00 on Saturdays and between 06:30 and 01:00 on Sundays. However, there is a comprehensive nighttime service on most lines between 01:00 and 05:00 on Saturdays and 01:00 and 06:30 on Sundays, which means that most stations enjoy a continuous service between Friday morning and Sunday evening. The only exception to this is the section of the S8 between and which has no service during these times. Many other lines are totally unchanged in their operation, but some are curtailed or extended during nighttime service.
Services on the Berlin S-Bahn were at first provided by the German national railway, the Deutsche Reichsbahn. Electrification of the existing suburban lines was completed around 1929, and thoughts turned to a new project: a tunnel that would join two spur lines that protruded into the city centre from the north and south. This tunnel, to be known as the Nord Süd Bahn, was a prestige project for the Nazis, and was opened in two sections. The first, from the north to Unter den Linden, opened in time for the 1936 Berlin Olympics; the final section, via Potsdamer Platz, opened the month after the Second World War began, in October 1939.
After hostilities ceased in 1945, Berlin was given special status as a "Four Sector City," surrounded by the Russian Occupation Zone, which later became the German Democratic Republic (GDR). The Allies had decided that S-Bahn service in the western sectors of Berlin should continue to be provided by the Reichsbahn (DR), which was by now the provider of railway services in East Germany. (Rail services in West Germany proper were provided by the new Deutsche Bundesbahn.)
The western sectors of the city were physically cut off from East Germany on 13 August 1961 by what was later called the Berlin Wall, in a well-prepared plan to separate the two halves of the city – and at the same time, to divide the Berlin public transit network into two separate systems. Stadtbahn services were curtailed from both directions at the Friedrichstraße station. This station was divided into two physically separated areas, one for eastern passengers and one for westerners. Although the station lay within East Berlin, western passengers could transfer between S-Bahn lines or to the U-Bahn without passing through border checks, much like passengers changing planes at an international airport. The GDR also operated an Intershop in the western portion of the station, where persons arriving from West Berlin (again without passing through border controls) could buy luxury goods such as tobacco and alcoholic beverages at discounted prices (compared to prices in West Berlin), provided they paid in hard currency, owing in part to the fact that Intershop customers did not pay West German taxes on their purchases. The West Berlin authorities were aware of this situation but did not impose stringent customs controls on such purchases out of political considerations. The Friedrichstraße station also become the main entry point for train and subway riders from West Berlin into East Berlin. Service on the Nord Süd Bahn was operated for western passengers only. It passed through a relatively short stretch under East Berlin territory in the city centre, and trains did not stop at the underground East Berlin S-Bahn stations, which were called ghost stations. Similarly, the Ringbahn services in the north of the city were curtailed at Gesundbrunnen from the west and Schönhauser Allee from the east, and in the south-east of the city at Sonnenallee and Köllnische Heide from the west and Treptower Park and Baumschulenweg from the East.
Because the S-Bahn was operated by the DR, West Berliners vented their frustration at the building of the wall by boycotting it since its fares were seen as subsidising the communist regime in the East. "Keinen Pfennig mehr für Ulbricht," or "not a penny more for Ulbricht," became the S-Bahn opponents' chant. Within days of the Berlin Wall being built, the BVG, with assistance from other transit companies in West Germany, began providing "solidarity with Berlin buses" – new bus services which paralleled the S-Bahn lines and therefore provided an alternative. After many years of declining passenger usage and difficult industrial relations between the West Berlin workforce and their East Berlin employers, most of the western portion of the S-Bahn was closed down in September 1980 following a strike. A 20-minute service was still provided on the Stadtbahn from Westkreuz to Friedrichstraße as well as services on the Nord-Süd Bahn between Frohnau, Friedrichstraße, Lichtenrade or Wannsee.
By contrast, during the same period, services on the S-Bahn in East Berlin were increased and new lines built as housing projects expanded eastward from the city centre. With most of the U-Bahn located in West Berlin, the S-Bahn became the backbone of the East Berlin transit network.
The 1980 incidents turned media and political attention towards what was left of West Berlin's S-Bahn network. The city government decided to enter negotiations with East Germany which were finally successful. On 9 January 1984, the BVG took over the responsibility for operation of S-Bahn services in West Berlin. After further closedowns that same day, a limited service was restored, initially comprising only two short sections without direct interchange between them. In the years between 1984 and 1989, several sections were gradually reopened, resulting in a network of 71 km and three lines - with one line running on the Stadtbahn and two on the Nord Süd Bahn - comprising of about 50% of West Berlin's original network. This development brought West Berlin's S-Bahn back into the public awareness and restored its popularity.
Technically, a number of projects followed in the steps of re-establishing broken links in order to restore the former S-Bahn network to its 1961 status after 1990, especially the Ringbahn. In December 1997 the connection between Neukölln and Treptower Park via Sonnenallee was reopened, enabling S4 trains to run 75% of the whole ring between Schönhauser Allee and Jungfernheide. On 16 June 2002, the section Gesundbrunnen - Westhafen also reopened, re-establishing the Ringbahn operations.
Until 1984, all Berlin S-Bahn routes were allocated letters as a means of identifying the route of the train. These letters were occasionally followed by Roman numerals to indicate a shortworking or bifurcation in the service (e.g., A, BI, BII, C,) and are still used internally by the Berlin S-Bahn GmbH for timetabling and in conjunction with radio call-signs to each train unit. When the BVG took over the responsibility for operation of S-Bahn services in West Berlin in 1984, it introduced a new unified numbering scheme for both the S-Bahn and the U-Bahn, which it also operated. Existing U-Bahn route numbers were prefixed with the letter U, while the new S-Bahn route numbers were prefixed with the letter S. This system of numbering routes was used in all other West German cities, and was extended to the S-Bahn service for the whole city after reunification.
Compare U-Bahn Line Numbering
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