LGV Sud Europe Atlantique
| Company type | Consortium |
|---|---|
| Industry | Railway transport |
| Founded | 2011 |
| Headquarters | France |
Area served | Southwestern France |
| Products | High-speed rail services (infrastructure) |
| Owner | LISEA consortium |
The LGV Sud Europe Atlantique (LGV SEA), also referred to as LGV Sud-Ouest and officially named LGV L'Océane since April 2016, is a high-speed rail corridor linking Tours and Bordeaux in France. This line is serviced by SNCF's TGV inOui and Ouigo trains and acts as the southern extension of the LGV Atlantique, complementing the western expansion known as LGV Bretagne-Pays de la Loire. Both extensions were inaugurated on 28 February 2017 and opened to traffic on 2 July 2017. The LISEA consortium, responsible for building the line, retains ownership and maintenance duties until 2061, charging access fees to train operators. Trains depart from Paris via Gare Montparnasse.
Trains operate at speeds up to , cutting the travel time between Paris and Bordeaux to roughly two hours—nearly an hour quicker than the previous route. Future plans include extending the line from Bordeaux toward Spain (LGV Bordeaux–Spain) and Toulouse (LGV Bordeaux - Toulouse), with preliminary work on the Toulouse extension beginning in May 2024 and service anticipated by 2032.
This railway marks France’s inaugural high-speed line developed through a public-private partnership model, with LISEA overseeing financing, construction, operation, and upkeep from 2011 until 2061.
Purpose
The LGV SEA introduces high-speed rail connectivity to southwestern France, linking the Nouvelle-Aquitaine and Occitanie regions with Northern Europe’s high-speed network that connects Paris to cities such as London, Brussels, and Amsterdam. The journey from Paris to Bordeaux now takes approximately two hours and ten minutes at speeds reaching . It strengthens intercity links among Tours, Poitiers, Angoulême, and Bordeaux, enhancing accessibility within France and across Europe. Departures from Paris are made at Gare Montparnasse.
This project alleviates congestion on older lines caused by mixed traffic—fast TGV trains traveling up to sharing tracks with slower freight and regional (TER) services. By providing dedicated tracks for TGV trains, capacity is freed on existing lines for additional freight and TER operations, fostering regional development while reducing road congestion. In Nouvelle-Aquitaine, TER ridership increased by 10% in 2018, illustrating the positive regional effects of the new line.
A concession agreement facilitated the simultaneous launch of four high-speed rail projects under President Nicolas Sarkozy’s administration, capping public funding at 51% for the SEA line compared to an average of 75% in other railway partnerships. The construction phase generated approximately 10,000 jobs over five years and stimulated employment in sectors such as transport, commerce, and services. Local enterprises have benefited from expanded market access and boosted tourism.
This high-speed route supplements—and partially replaces—the traditional Paris–Bordeaux railway.
Details
The LGV SEA was constructed by the LISEA consortium comprising Vinci Concessions (33.4%), Caisse des dépôts et consignations (25.4%), Meridiam (22.0%), and Ardian (19.2%). LISEA holds responsibility for operating and maintaining the line until 2061 while charging tolls to train operators. The consortium invested €3.8 billion; contributions from the French government, local authorities, and the European Union amounted to €3 billion; SNCF Réseau provided €1 billion plus an additional €1.2 billion dedicated to interconnections, control centers, capacity enhancements at Bordeaux, and track reconfiguration at Gare Montparnasse. The total expenditure reached €7.7 billion.
Due to its concession-based financing structure, SNCF initially expressed concerns about potentially higher toll fees compared to other French high-speed lines. To manage expenses, SNCF explored deploying higher-capacity trains with fewer daily services and initially excluded Ouigo low-cost trains because of toll incompatibilities. A dispute in 2015 involved LISEA requesting 19 daily services to ensure profitability against SNCF’s proposal of 15; by July 2017, around 18.5 daily services were running, with Ouigo utilizing the entire LGV.
The new alignment bypasses Libourne, reducing travel distance relative to the former route. No additional stations were constructed between Saint-Pierre-des-Corps and Bordeaux; existing stations at Châtellerault, Poitiers, and Angoulême connect via new links to the high-speed tracks. South of Poitiers, a junction enables access to conventional lines toward La Rochelle.
Travel time between Tours and Bordeaux has been shortened by approximately 50 minutes, with typical Paris-Bordeaux trips taking around two hours and three minutes. The project comprises of dedicated high-speed track plus of conventional connecting track segments. Following its opening, annual ridership grew roughly 3.8%, surpassing initial projections of 2.6%–3.5%.
Travel durations
The anticipated travel times in comparison with those before the LGV implementation:
| Route | 2007 | 2017 (expected) | 2017 (actual) |
|---|---|---|---|
| Paris-Bordeaux | 3h 00m | 2h 04m | 2h 04m |
| Paris-Poitiers | 1h 26m | 1h 17m | 1h 18m |
| Paris-Angoulême | 2h 05m | 1h 40m | 1h 43m |
| Paris-La Rochelle | 2h 50m | 2h 27m | 2h 26m |
| Paris-Toulouse | 4h 56m | 4h 03m | 4h 08m |
| Bordeaux-Angoulême | 0h 52m | 0h 35m | 0h 35m |
| Poitiers-Bordeaux | 1h 32m | 0h 55m | 1h 03m |
| Poitiers-Angoulême | 0h 44m | 0h 37m | 0h 37m |
| Poitiers-Tours | 0h 47m | 0h 30m | 0h 29m |
| Tours-Angoulême | 1h 32m | 1h 07m | 0h 57m |
| Tours-Bordeaux | 2h 30m | 1h 30m | 1h 38m |
Project stages
Due to budgetary constraints, the initiative was segmented into three distinct stages:
Stage One: Angoulême to Bordeaux
- 2001–2003: Initial feasibility and planning studies
- 3 February –16 March 2005: Public consultations conducted
- 18 July 2006: Official declaration of public utility issued
- Early 2012: Commencement of construction activities
- 31 July 2017: Inauguration of service
Stage Two: Tours to Angoulême
- 2004–2006: Preliminary project assessments
- 25 October –19 December 2007: Public inquiry period
- 16 April 2007: Preliminary design endorsed by Ministry of Transport
- 10 June 2009: Declaration of public utility granted
- 2009: Initial groundwork and land procurement
- Early 2012: Main construction phase initiated
- 2 July 2017: Service launch
This second stage was expedited, supported by additional government funding announced in February 2009, aimed at accommodating increased passenger volumes following the opening of Stage One.
Stage Three: Bordeaux to Toulouse and onward to Spanish border
- Proposal stage; not yet finalized
- 2004–2005: Initial exploratory studies
- 2006: Public debate held
Although construction toward the Spanish frontier was initially scheduled before 2020, a public inquiry in 2015 halted this segment due to financial concerns. Nevertheless, preliminary works for the Bordeaux–Toulouse high-speed corridor commenced in May 2024, with operations anticipated by 2032.
Development timeline
- 25 September 1990: Launch of service on the south-west branch of the LGV Atlantique reaching Saint-Pierre-des-Corps, near Tours
- 1 April 1992: Early proposals introduced for a high-speed connection between Saint-Pierre-des-Corps and Bordeaux, initially called LGV Aquitaine
- 1994–1995: Public consultation on the LGV Aquitaine concept
- 1997–1998: Preliminary engineering studies for the Tours to Bordeaux route
- 2001–2003: Preliminary project development (APS) for section one (Angoulême-Bordeaux)
- 2004–2006: Preliminary project development for section two (Tours-Angoulême)
- 3 February –16 March 2005: Public utility inquiry for section one
- 18 July 2006: Declaration of public utility for works between Villognon and Ambarès-et-Lagrave
- 16 April 2007: Ministry of Transport approval of preliminary designs for section two
- 25 October –19 December 2007: Public inquiry conducted for section two
- 10 June 2009: Declaration of public utility for works from Saint-Avertin to Xambes granted
- 30 March 2010: Vinci-led consortium selected as contractor for line construction
- April 2010: Gironde General Council commits €138 million funding alongside State support
- 16 June 2011: LISEA consortium awarded a fifty-year concession to build and operate the line
- Early 2012: Construction activities commence, scheduled over approximately seventy-three months until early 2017
- 6 July 2015: Completion of civil engineering ahead of schedule; service opening set for July 31, 2017
- 25 July 2016: Initial TGV test runs at speeds of up to160 km/h; velocity increased to320 km/h by August
- 28 February 2017: Official inauguration by President François Hollande at Villognon maintenance facility
- 2 July 2017: Commercial operations begin
Ridership
| Year | Number of passengers |
|---|---|
| 2017* | ~20,000,000 |
| 2018 | ~20,000,000 |
| 2019 | ~20,000,000 |
| 2020 | ~10,000,000 |
| 2021 | 15,520,000 |
| 2022 | 19,320,000 |
- Year of inauguration (July), figures represent roughly six months of operation.
Environmental impact
The LGV route extends 302 km and covers around 4,200 hectares of territory.