HomeAbout Us Saftey & Cleanliness On behalf of Safety and Cleanliness To make you feel more comfortable, every day numerous of security and cleaning teams are on the move. Safety Measures and Clean-Up at Train Stations and in the Trains: ©David UlrichIn order to ensure that you're safely on your way Join a short tour : we will show you our measures for safety and explain what our passengers should know and pay attention to. Read more about In order to ensure that you're safely on your wayClean-up by day and night Get familiar with the range of cleaning operations at the S-Bahn Berlin, including Berlin's longest vehicle washing facility and our graffiti-teams Read more about Clean-up by day and night Modern Infrastructure and Security Technology ©Jerpback - FotoliaZBS safety technology and signal box technology Since October 2011 the railway network has been continously upgraded to the new train control system (ZBS). This represents a milestone in the suburban rail traffic. Read more about ZBS safety technology and signal box technology