S41 and S42 operate a circular service on the Ringbahn and are part of the Berlin S-Bahn. The S41 operates clockwise around the circle, the S42 operates counter-clockwise.[1]
See also
References
- ^ "S-Bahn Network Map" (PDF). S-Bahn Berlin GmbH. 2008-06-27. Retrieved 2009-07-07.
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