Line S 11 is a S-Bahn line operated by DB Regio on the Rhine-Ruhr S-Bahn network. It connects Düsseldorf Airport Terminal with Bergisch Gladbach, running via Düsseldorf Neuss, Dormagen and Cologne. Before 13 December 2009, the service operated from Wuppertal-Vohwinkel in peak time, sharing the Wuppertal-Düsseldorf run with the S8 trains. Normal operation, though, started at Düsseldorf-Wehrhahn. Since the introduction of the new 2010 Schedule the service starts at Düsseldorf Airport Terminal replacing the line S 7 to Düsseldorf Hbf. The former run to Wuppertal-Vohwinkel is now conducted by the S 68.
The S11 runs are normally operated with DBAG Class 423 stock, usually with two coupled sets per train.
The Line runs over lines built by various railway companies:
- from Düsseldorf Airport Terminal to Düsseldorf-Unterrath over the Düsseldorf-Unterrath–Düsseldorf Airport Terminal railway, opened on 27 October 1975 by Deutsche Bundesbahn,[2]
- from Düsseldorf-Unterrath to Düsseldorf Hauptbahnhof over the Cologne–Duisburg railway, opened by the Cologne-Minden Railway Company on 9 February 1846,[3]
- from Düsseldorf Hauptbahnhof to Neuss Hauptbahnhof over the deviation of the Mönchengladbach–Düsseldorf railway over the Hamm Railway Bridge, opened by the Bergisch-Märkische Railway Company on 24 July 1870,[4]
- from Neuss Hauptbahnhof to Köln-Worringen over the Lower Left Rhine Railway, opened by the Cöln-Crefeld Railway Company on 15 November 1855,[5]
- from Köln-Worringen to Köln–Hansaring over the Cologne–Köln-Worringen railway, opened by Deutsche Bundesbahn in stages from 1 June 1975 to 2 June 1985 as part of the S-Bahn,[6]
- from Köln–Hansaring to Cologne Hauptbahnhof over a section of the Cologne–Aachen line opened by the Rhenish Railway Company on 15 October 1859 with the opening of the new central station,[7]
- from Cologne Hauptbahnhof to Köln Messe/Deutz over the new S-Bahn tracks opened on 28 May 1989 and 26 May 1990[8] next to the original Hohenzollern Bridge opened on 22 May 1911,[9] which replaced the Cathedral Bridge, opened by the Cologne-Minden Railway Company on 3 October 1859,
- from Köln Messe/Deutz to Köln-Mülheim over the Cologne–Duisburg railway, opened by the Cologne-Minden Railway Company on 20 December 1845,[3]
- from Köln-Mülheim to Bergisch Gladbach over the Sülz Valley Railway, opened by the Bergisch-Märkische Railway Company on 15 December 1868.[10]
Services commenced between Cologne and Köln-Chorweiler on 1 June 1975 and extended to Köln-Chorweiler Nord on 22 May 1977. Services were extended to Neuss on 2 June 1985, to Düsseldorf-Gerresheim/Düsseldorf Wehrhahn on 29 May 1988, to Wuppertal-Vohwinkel. On 13 December 2009, it was extended to Düsseldorf Airport Terminal, dropping the fork to Wuppertal-Vohwinkel.[11]
