S6 (Rhine-Ruhr S-Bahn)

Line S 6 is a S-Bahn line in the Rhein-Ruhr network.

It calls, among others, at the cities of Essen, Düsseldorf and Cologne and was the first S-Bahn line in the Rhine-Ruhr network, becoming operational on 28 September 1967 between Ratingen Ost and Düsseldorf-Garath.

It is operated at 20-minute intervals using coupled sets of class 422 four-car electrical multiple units.

Line S 6 runs over lines built by various railway companies: It was opened on 28 September 1967 between Ratingen Ost and Düsseldorf-Garath.

It was extended from Ratingen Ost to Essen on 26 May 1968 and from Garath to Langenfeld (Rheinl) on 12 December 1968, from Langenfeld to Köln Hansaring on 2 June 1991 and from Hansaring to Köln-Nippes on 13 June 2004.