 The structure was composed of around 150 tonnes of spruce timber, reinforced with steel elements, and assembled from four pre-fabricated modules which were lifted into place using cranes.On 6 August 2012, trains began passing through the new Hauptbahhof station without stopping.During December 2012, the station attained a partial operational status, coinciding with a timetable shakeup on 9 December and the induction of some new alignments; as a result, both regional and S-Bahn services began using platforms 9-12, while long-distance trains continued to not stop at the station.