During renovation of the Bahnhofplatz in Berne between 2005 and 2008, the following work was performed: road renewal, renovation of the public transport road and track infrastructure, complete renovation of the underground ewb (Energy Water Berne) supply lines (water, gas, electricity), public lighting, greening and general maintenance of the surrounding area, adjustment work on the buildings at Hirschengraben, Bubenbergplatz, Bahnhofplatz and Spitalgasse. Conversion and repair of the Christoffel underpass was made possible by the new construction of the second basement floor. The main work was performed during a period when traffic was closed off. To ensure the avoidance of logistical bottlenecks, the road construction work was vigorously pushed ahead with in the area around Bubenbergplatz and Bahnhofplatz Nord. This then allowed the track work along the cross-city tram route, including the associated road construction work, to be carried out.