Between March 2023 and November 2023, SWIETELSKY carried out a comprehensive track and railway infrastructure project on the Fredericia–Vejle open line section. The project was executed on an active and trafficked railway line and required a high level of coordination, railway safety and technical integration across multiple disciplines.
The project included both mechanised and manual track works, carried out through several work stages. Works comprised track removal and reinstatement, construction of new track formation, as well as extensive track adjustment and ballast cleaning activities. Welding and stress‑relief works were performed over longer track sections to ensure stable and safe railway operations.
As part of the project, extensive shoulder, embankment and drainage works were carried out, including the installation of new drainage systems with drains, fixed pipes and manholes. The works also involved comprehensive cable handling in connection with ballast cleaning, including cable detection, exposure, lowering and reburial, as well as removal and reinstatement of cable troughs and level crossings.
The project further included significant signalling and overhead line works, such as removal and reinstallation of ATC equipment including testing, temporary relocation of signals, temporary interventions in signalling systems and subsequent signalling commissioning. Overhead contact line works comprised adjustment and fine‑tuning of the catenary suspension system, followed by commissioning of the overhead line system.
The project demonstrates SWIETELSKY’s experience in delivering complex track and railway infrastructure works, integrating multiple technical disciplines in a single coordinated execution with a strong focus on quality, safety and operational reliability.
Project key figures
- Period: March 2023 – November 2023
- 762 m of track removal and reinstatement
- 45 prefabricated glued insulated rail joints and fittings
- 18 km of welding and stress‑relief works
- 17 km of track alignment and adjustment
- 762 m of manual construction of new track formation
- 16 km of mechanised ballast cleaning
- 17 km of shoulder, embankment and ditch works
- 450 m of drainage systems (drains, fixed pipes and manholes)
- 5 km of cable detection and cable handling
- 1 km of cable exposure and reburial




