Mülheim (Ruhr) Hauptbahnhof Mülheim (Ruhr) Hauptbahnhof Mülheim (Ruhr) Hauptbahnhof is a railway station for the city of Mülheim in the German state of North Rhine-Westphalia. It was renamed as a Hauptbahnhof in 1974 at the time of the rebuilding of the Dortmund–Duisburg line as part of the establishment of the Rhine-Ruhr S-Bahn. It is classified by Deutsche Bahn as a category 3 station. The original station is unusual in that it was built as two adjoining stations by the two main private railways buildings lines in the Ruhr area, the Rhenish Railway Company ("Rheinische Eisenbahn-Gesellschaft", "RhE") and the Bergisch-Märkische Railway Company ("Bergisch-Märkische Eisenbahn
S7 (Rhine-Ruhr S-Bahn) and on weekends, every 30 minutes. Line S 7 runs over lines built by two railway companies: There was an earlier line S 7 operated by DB Regio, which began at Düsseldorf Airport Terminal station. From there it ran south to Solingen Hbf via Düsseldorf Hbf. With the change to the 2010 timetable on 13 December 2009, line S1 replaced the service between Düsseldorf Hbf and Solingen. The S11 was extended to run to Düsseldorf Airport Terminal station. 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