The Munich S-Bahn is an electric rail transit system in Munich, Germany. "S-Bahn" is the German abbreviation for Stadtschnellbahn, and the Munich S-Bahn exhibits characteristics of both rapid transit and commuter rail systems. From Wikipedia
From May 9 to May 12, Deutsche Bahn will conduct intensive maintenance and modernization, impacting most S-Bahn lines and requiring extensive replacement services.