An underground railway line for Munich was first proposed in 1928 in a report on the "relocation of traffic centres".
An underground route would allow "direct long distance traffic to and through the city centre".

On 22 May 1938, the first tunnel, which was part of the north-south route, was started in the Lindwurmstraße, between the present-day underground stations Sendlinger Tor and Goetheplatz.
In the speech of Julius Dorpmüller, the general director of Deutsche Reichsbahn, the project was called "S-Bahn" for the first time.
Due to World War II the construction and plans for the Munich S-Bahn were set aside.
An underground railway line for Munich was first proposed in 1928 in a report on the "relocation of traffic centres". An underground route would allow "direct long distance traffic to and through the city centre".
On 22 May 1938, the first tunnel, which was part of the north-south route, was started in the Lindwurmstraße, between the present-day underground stations Sendlinger Tor and Goetheplatz. In the speech of Julius Dorpmüller, the general director of Deutsche Reichsbahn, the project was called "S-Bahn" for the first time. Due to World War II the construction and plans for the Munich S-Bahn were set aside.
Munich S-Bahn