S1 (Rhine-Ruhr S-Bahn) Services ran via Düsseldorf Airport Terminal station from 24 May 1998 to 28 May 2000. Services were extended from Düsseldorf to Solingen on 13 December 2009, replacing part of the former line S 7 service. S1 (Rhine-Ruhr S-Bahn) Line S1 is a S-Bahn line on the Rhine-Ruhr network. It is operated by DB Regio. It runs from Dortmund west over Essen to Duisburg. From there it travels south to Düsseldorf and Hilden before continuing to Solingen. It is operated at 20 minute intervals, using coupled sets of class 422 four-car electrical multiple units. Line S 1 runs over lines built
S7 (Rhine-Ruhr S-Bahn) S7 (Rhine-Ruhr S-Bahn) Line S 7 is an S-Bahn line on the Rhine-Ruhr network in the German state of North Rhine-Westphalia, which has been operated by Abellio from Wuppertal Hauptbahnhof to Solingen Hauptbahnhof since 15 December 2013. It is operated at 20 minute intervals, using LINT 41 vehicles. The service was previously classified as Regionalbahn service RB 47, known as the "Der Müngstener", a reference to the Müngsten Bridge, which it crosses and DB Regio had operated it on the same route with class 628 diesel multiple units since 1994. It was also operated at 20-minute intervals, in the evenings