S9 (Berlin) Explained

System:	Berlin S-Bahn
Locale:	Berlin
Operator:	S-Bahn Berlin GmbH
Stock:	DBAG Class 481
Electrification:	750 V DC Third rail
Map State:	uncollapsed

S9 is a line on the Berlin S-Bahn.^[1] It operates from Flughafen BER to Spandau through Berlin Hauptbahnhof (Berlin Central Station) over:

• a very short section of the Outer ring, opened in 1951 and electrified in 1983,
• a short section of the former Outer freight ring opened in the early 1940s and electrified in 1983,
• the Görlitz line, opened in 1866 and electrified in 1929,
• the Ring line, completed in 1877 and electrified in 1926 and, via a connecting curve,
• the Berlin–Wrocław railway, which at Berlin Ostbahnhof becomes
• the Berlin Stadtbahn to Charlottenburg,
• the Spandau Suburban Line.

Service history

The S9 was created on 2 June 1991, replacing the Blue route of the S3 between Charlottenburg and Flughafen Berlin Schönefeld (now Schönefeld (bei Berlin) station), with the western terminus extended by one stop to Westkreuz.^{[2] [3]}

Notes and References

1. Web site: S-Bahn Network Map . . 2008-06-27 . 4 June 2010 .
2. Web site: How the S-Bahn got its numbers. S-Bahn Berlin. Deutsche Bahn. 18 May 2023. https://web.archive.org/web/20230518233609/https://sbahn.berlin/aktuelles/artikel/wie-die-s-bahn-zu-ihren-nummern-kam#c21296. 18 May 2023. Berlin. de. 9 June 2021.
3. Web site: Berliner Nahverkehrsnetz – Schnellbahnnetz. Berliner Linienchronik. Berliner Verkehrsbetriebe. 19 May 2023. https://web.archive.org/web/20230519002335/https://file1.hpage.com/003497/13/bilder/s_u-bahn_netz_199091.jpg. 19 May 2023. Berlin. de. November 1990.