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. From Wikipedia
A derailed locomotive in Düsseldorf-Bilk continues to impact regional train schedules, causing significant delays and cancellations.
