Construction began in July The first bore was structurally completed in March , the second in October The tunnel and new tracks linking it with the rest of the network were opened for commercial service on 15 December , the date of the timetable change in December It was planned that each hour and in each direction, there would be up to ten S-Bahn, two regional trains and one express as of July [update]. The S-Bahn network , which is in service since 15 December , is operating as follows December :.
All lines run with intervals of between 30 minutes and minutes. Due to the high number of trains regional trains, S-Bahn and ICE between the main station and Leipzig-Leutzsch, since December the S1 has operated at minute intervals. Before construction, capacity was limited to eleven S-Bahn trains, two regional express trains and one express train per hour in each direction.
A connection between Leipzig Hauptbahnhof and Bayerischer Bahnhof was first considered in The implementation was planned as an underground railway, running parallel to the two mainline tracks from Borsdorf via the Hauptbahnhof and the Bayerischer Bahnhof and on to Connewitz and Gaschwitz. It would be powered by a Third Rail system.
During the construction of the main station started in , between and a m long entrance ramp was built from the direction of Dresden with a m long tunnel under part of the station.
The tunnel ended 8. Beneath the current tram and bus stops, underground platforms 22 and 23 of some 40m in length were built. An extension below the ring road was planned and prepared to a length of m. The construction work was suspended during World War I and was not resumed thereafter. During World War II the tunnel and underground stop were converted to provide air-raid shelters. During the bombing raid on Leipzig on 7 July , there were two explosions that destroyed the tunnel at two places and thus divided it into three parts.
