The Stuttgart–Ulm rail project

The Stuttgart–Ulm rail project is: S21 the complete restructuring of the Stuttgart rail node plus the construction of a new line between Wendlingen and Ulm. It is the largest upgrading concept for public rail transport in Baden-Württemberg since the 19th century.

S21 – restructuring the Stuttgart rail node

A total of 60 km of new railway line and three new stations – Stuttgart Main Station, Flughafen/Messe for the airport and trade fair grounds, and Mittnachtstraße rapid transit station in the new Rosenstein district – will increase the capacity of the Stuttgart rail node.

The city's main station will be converted from a terminus where trains end into a through station, but the historic station, with its striking passenger building, tower and colonnades will be integrated with the new structure.

The new Flughafen/Messe station will link the region to the south of the city to long-distance and regional transport routes.

The project will open up unique urban development opportunities in Stuttgart: tracks that now slice the urban fabric in two will give way to a new neighbourhood right in the centre of Stuttgart. This will create more green space, new housing and jobs.

S21- Restructuring the Stuttgart rail nodeThe new-build Wendlingen-Ulm line
  • Total line length:
    57 km
  • Of which tunnels and cuttings:
    33 km
  • Maximum speed:
    250 km/h
  • Number of tunnels and cuttings:
  • Number of bridges:
  • Number of stations:
  • Planned inauguration:
    December 2025
  • Total line length:
    59,6 km
  • Of which tunnels and cuttings:
    30,4 km
  • Maximum speed:
    250 km/h
  • Tunnel (>500 m)
  • Railway overpasses:
  • Road overpasses:
  • Planning approval issued on:
    December 2022