The 3.6km twin-bore north-south tunnel links Leipzig North and Leipzig MDR, with new underground stations at Leipzig Hauptbahnhof, Leipzig Markt, Wilhelm-Leuscher Platz, and Bayerische Bahnhof.
Public services began on December 15, initially with six S-Bahn trains per hour operating in each direction.
Construction commenced in July 2003 and the tunnel was connected to the mainline network in September, with test operation beginning on October 1.
The Mid-German S-Bahn network is operated by DB Regio using a fleet of 36 three-car and 15 four-car class 442 emus supplied by Bombardier.
