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Line S 5 is a S-Bahn

S-Bahn

S-Bahn refers to an often combined city center and suburban railway system metro in Austria, Germany, Switzerland and Denmark...

 line in the Rhine-Ruhr network. It is operated by DB Regio

DB Regio

DB Regio AG is a subsidiary of Deutsche Bahn which operates short and medium distance passenger train services in Germany, and operates light and heavy rail infrastructure in the United Kingdom.-Germany:...

. It runs from via to . There are current plans to expand the line by building five new stations. It is operated between Düsseldorf and Wuppertal-Oberbarmen

Wuppertal-Oberbarmen station

Wuppertal-Oberbarmen station is a station in the city of Wuppertal in the German state of North Rhine-Westphalia. It was long an important railway junction, connecting to four railway lines...

 at 30 minute intervals using class 422 electric multiple units

DBAG Class 422

The Class 422 is a series of four-car electric multiple units that are a derivative of the DBAG Class 423.- History :The units were commissioned by Deutsche Bahn in 2005...

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Line S 5 runs over the Elberfeld–Dortmund railway

Elberfeld–Dortmund railway

The Elberfeld–Dortmund railway is a major German railway. It is part of a major axis for long distance and regional rail services between Wuppertal and Cologne, and is served by Intercity Express, InterCity, Regional Express, Regionalbahn and S-Bahn trains....

 opened by the Bergisch-Märkische Railway Company on 20 December 1848.

S-Bahn services commenced on the whole length of the route on 29 May 1994.