Route of S11
Legend
0.0 Düsseldorf Flughafen Terminal 2.1 Düsseldorf-Unterrath S1 5.4 Düsseldorf-Derendorf S1S6 6.3 Düsseldorf Zoo S1S6 7.5 Düsseldorf-Wehrhahn S1S6 8.6 Düsseldorf Main Station S1S6S8S28S68 10.6 Düsseldorf-Friedrichstadt S8S28 11.7 Düsseldorf-Bilk S8S28 13.5 Düsseldorf Völklinger Straße S8S28 14.3 Düsseldorf-Hamm S8S28 16.0 Neuss Rheinparkcenter S8S28 18.1 Neuss Am Kaiser S8S28 20.8 Neuss Hbf S8S28 23.2 Neuss Süd 27.1 Neuss Norf 21.3 Neuss Allerheiligen 32.6 Dormagen-Nievenheim 36.1 Dormagen 39.2 Dormagen Chempark Network change from VRR to VRS 42.1 Köln-Worringen 44.0 Köln-Blumenberg 45.4 Köln-Chorweiler Nord 46.3 Köln-Chorweiler 46.3 Köln-Volkhovener Weg 49.1 Köln-Longerich 53.5 Köln Geldernstraße 54.7 Köln-Nippes S6 56.1 Köln Hansaring S6S12S13S19 56.9 Köln Hbf S6S12S13S19 57.8 Köln Messe/Deutz S6S12S13S19 58.9 Köln-Buchforst S6 60.9 Köln-Mülheim S6 64.1 Köln-Holweide 66.6 Köln-Dellbrück 68.6 Bergisch Gladbach-Duckterath 70.4 Bergisch Gladbach
Source: German railway atlas[1]

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]