The overhead line system at the track section between kilometres 28,640 and 35,440 of the 4300 Höllentalbahn railway line was renewed. The track section includes Titisee station at kilometre 29,293 and Neustadt (Black Forest) station at kilometre 34,889. At Titisee station the Dreiseenbahn (Three Lakes Railway), i.e. line 4301, diverges to Seebrugg. At the track section between Titisee and Neustadt (Black Forest) a speed of up to 100 km/h is reached, which is also the maximum permissible speed.

The works were carried out during a complete closure of the track.