RSRG renovates platforms and infrastructure at a major transport hub in Germany, all under live traffic conditions.
As part of the complete redevelopment and comprehensive modernisation of all eight platforms at Dortmund Central Station, Rhomberg Sersa Rail Group equipped the station with a new, state-of-the-art lighting system. In addition, the entire platform power supply was renewed. To maximise safety, a new high-performance 10 kV medium-voltage system was installed in the former post and luggage tunnel.
To ensure reliable energy supply, a new transformer station with two 630 kVA dry-type transformers was constructed and it has been in operation since May 2022. An existing 10 kV transformer station was also newly connected to the grid. This required rerouting power lines throughout the entire station – a particularly challenging task given the existing infrastructure.
A central element of the project was the construction of a new pedestrian underpass. It now links the platforms with the newly built concourse and the northern entrance, providing passengers with a more comfortable and accessible route through the station.
Challenges…
A key challenge was that all refurbishment work had to take place during ongoing operations – in other words, “under live wheels”. Only specific sections of the station could be closed at a time, with only the platform currently under construction ever taken out of service. Passenger traffic had to be maintained at all times, including during demolition and new construction phases.
Throughout the construction period, all parties involved were consistently pushed to their limits. The planning had to be revised several times – whether due to changes in regulations, technical innovations such as LED lighting, CCTV, Wi-Fi or D-BOS, or unexpected structural conditions in the existing building. Despite these adjustments, the project schedule was met without delays.
…and solutions
None of this would have been possible without the close, solution-focused collaboration of everyone involved. Special thanks go to Deutsche Bahn as the project owner, who always pursued a pragmatic approach. The successful delivery of this project demonstrates what can be achieved through ongoing coordination, technical expertise, and shared commitment.
After a total construction period of seven years, the last of the eight platforms was completed and officially opened on February 7, 2025 – marking a major milestone for the station.
