S5 (Berlin)

S5 is a line on the Berlin S-Bahn. It operates from Strausberg Nord to Westkreuz over:
 * the Strausberg–Strausberg Nord line, completed in 1955 and electrified in 1956,
 * a section of the Prussian Eastern line, opened on 1 October 1866 and electrified on 6 November 1928,
 * the Stadtbahn, opened on 7 February 1882 and electrified on 11 June 1928.

Service history
The S5 was created on 2 June 1991, replacing the Orange route of the S3 between Westkreuz and Strausberg Nord, with the southwestern terminus extended to Wannsee.