The joint transition structure (FüK) addresses the critical challenge posed by differing movements between station buildings and adjoining bridge structures. As these structures move independently of one another, the FüK ensures that the track on the slab track remains continuously stable at the bridge joints.

The system was specifically developed to withstand extreme loads – such as 3- to 5-minute intervals in suburban and long-distance rail services. As a replacement for defective legacy systems, the RAILONE solution offers a heavy-duty, technically tested innovation for complex junctions in the rail infrastructure.