Track construction

High-speed lines

Classic lines, high-speed lines, metros, trams... TSO masters all the required skills, from design to commissioning.

TSO has participated in the installation of a linear quantity of more than 2500km of high-speed tracks on French and European territory.


  • LGV Atlantic
  • Lyon bypass and extension to Valence
  • LGV North
  • Channel Tunnel
  • Mediterranean High Speed Line
  • High Speed One in the United Kingdom
  • LGV in Belgium
  • LGV Rhine-Rhone
  • LGV East European

World speed records were broken – 515.3 km/h on the LGV Atlantic line in 1990 and 574.8 km/h on the LGV East European line in April 2007 – on the tracks laid by TSO.