The Berlin S-Bahn is operated by an independent company, S-Bahn Berlin GmbH.
Information on timetables and terms and conditions can be found on its website.
Information on changes to the timetable due to works and disruption for S-Bahn trains (in German only): http://www.s-bahn-berlin.de
The online BVG journey planner naturally includes all S-Bahn stops and journey times.
For questions and general information on the S-Bahn Berlin, please contact:
Telephone: (030) 29 74 33 33
All S-Bahn trains are accessible to reduced-mobility passengers. As required, the train driver or the station supervisor will provide assistance in boarding and alighting. Passengers with reduced mobility should remember, however, that the S-Bahn station at which they wish to board, alight or change may not be fully accessible.
More information can be found in the mobility overview.