Sud Europe Atlantique High-speed railway line

Construction of a high speed railway line from Tours to Bordeaux, extending the existing high speed line from Paris to Tours and cutting journey times from Paris to Bordeaux to 2 hours and 5 minutes, for an overall investment of €7.8 billion.

Date : 2017 – Client : LISEA

LGV Sud Europe Atlantique par mobility

Services provided

  • Management of the two subgroups responsible for the overhead line and the traction power supply.
  • Design engineering (systems engineering, RAMS studies).
  • Construction design.
  • Supplies.
  • Works.
  • Testing.
  • Final documentation.
  • Participation in integration testing.
  • Participation in overall project management.

Technical details

  • 302 km of new double-track line crossing three regions, six departments, 113 towns and 14 Natura 2,000 areas (200 protected species).
  • Commercial traffic at 320 km/h.
  • 38 km of links to the existing network.
  • 2 overhead line 25 kV.
  • Four 225 kV or 400 kV substations.
  • 13 traction transformers 60 MVA.
  • 27 feeder substations.
  • 55 autotransformers 10MVA or 15MVA.
  • 13000 overhead line supports.
  • 1320 km of overhead line cables.

Strengths

  • First rail concession in France, dating back 50 years
  • Daily progress of 1,300 m with work on two fronts
  • Very short timeline: 73 months
  • Management of RTE services to supply 225 kV or 400 kV lines (within the scope of the concession)

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