TGV

TGV
Company type	State-owned enterprise
Industry	Rail transport
Founded	1966
Founder	SNCF
Headquarters	France
Area served	France, Italy, Spain, Belgium, Luxembourg, Germany, Switzerland, United Kingdom, Netherlands
Key people	SNCF
Products	High-speed rail services
Owner	SNCF (state-owned)

The TGV (; , meaning 'high-speed train') represents France's premier intercity high-speed rail service. Operating commercially at speeds reaching on the newest routes, the TGV was created as part of significant national initiatives such as the Ariane 1 rocket and Concorde supersonic aircraft, all supported by government-driven champion national strategies. In 2023, the system transported 122 million travelers.

The state-owned SNCF launched the high-speed rail initiative in 1966, receiving presidential endorsement in 1974. Originally intended to be powered by gas turbine turbotrains, the TGV prototypes transitioned to electric traction following the 1973 oil crisis. In 1976, SNCF commissioned 87 trains from Alstom. The first Paris–Lyon route commenced operations in 1981 on the LGV Sud-Est, with further network extensions linking major French cities including Marseille, Lille, Bordeaux, Strasbourg, and Rennes, as well as international destinations through a combination of high-speed and conventional tracks. The network expanded swiftly with new LGVs spanning southern, western, northern, and eastern France. Remarkably, the TGV has preserved an unblemished safety record, with zero passenger fatalities during routine service.

In 2007, a specially adapted TGV train named Project V150 established a world speed milestone of . That same year witnessed the fastest scheduled rail service achieving an average speed of on the LGV Est line—a record only surpassed in 2013 by a Chinese high-speed segment. The TGV’s sophisticated TVM cab-signalling system enhances operational safety and efficiency by permitting train departures every three minutes and automatically engaging emergency brakes when necessary.

The TGV network reaches beyond France to Italy, Spain, Belgium, Luxembourg, Germany, Switzerland (through TGV Lyria), the United Kingdom (Eurostar), and the Netherlands (formerly Thalys). Current developments include the Mont d'Ambin Base Tunnel on the LGV Lyon–Turin route, anticipated to become the world’s longest railway tunnel. Additionally, the TGV services commuter routes around Paris and connects major airports such as Charles de Gaulle and Lyon–Saint-Exupéry, alongside tourist hotspots like Disneyland Paris, Avignon, and Aix-en-Provence. Cities including Brest, Chambéry, Nice, Toulouse, and Biarritz are accessible via a blend of LGVs and upgraded conventional lines.

In 2007, SNCF reported profits of €1.1 billion (approximately US$1.75 billion), largely fueled by robust earnings from the TGV network.

History

The idea for the TGV originated in the 1960s following Japan's introduction of the Shinkansen in 1959. While exploring alternative technologies such as hovercraft and the Aérotrain system, SNCF concentrated on developing high-speed trains compatible with existing tracks. Funding for the initial line was secured in 1976. By the mid-1990s, due to its success, SNCF president Louis Gallois described it as "the train that saved French railways."

Development

At its inception, the TGV—an acronym for très grande vitesse ('very high speed') or alternatively turbine grande vitesse ('high-speed turbine')—was engineered to utilize gas turbines for their favorable power-to-weight ratio. The sole gas-turbine prototype, TGV 001, was abandoned after the 1973 oil crisis rendered turbines uneconomical; consequently, development shifted toward electric traction powered by overhead lines energized predominantly through nuclear power.

TGV 001 introduced several pioneering features: enhanced high-speed braking systems, aerodynamic design improvements, articulated carriages sharing bogies between cars, achieving a speed of 318 km/h—a record for non-electric trains at that time. Its design by Jacques Cooper influenced early visual elements of subsequent TGV models, including their distinctive nose profiles.

Adapting to electric propulsion necessitated redesign efforts. The first electric prototype called "Zébulon" (1974) underwent testing focused on motor mounting techniques, pantograph performance, suspension systems, and braking capabilities. Positioning motors on the car body reduced unsprung mass by over three tonnes. This prototype accumulated nearly one million kilometers during trials.

Following government approval of financing in 1976, construction commenced on LGV Sud-Est—the inaugural high-speed line (Ligne Nouvelle 1). After extensive testing and refinement using two pre-production units named "Patrick" and "Sophie," the first production trainset was delivered on 25 April 1980.

Service

The TGV began its commercial operations between Paris and Lyon on 27 September 1981. Unlike previous elite fast train offerings, SNCF positioned the TGV as a service accessible to the general public, keeping ticket prices similar to those of regular trains. To counter the perception that the TGV was exclusively a premium business service, SNCF highlighted attributes such as rapid travel times, frequent departures, flexible reservations, uniform pricing, and wide availability through comprehensive marketing efforts. This inclusive approach was further promoted during the Mitterrand administration with the motto "Progress means nothing unless it is shared by all." The TGV provided substantially quicker door-to-door journeys compared to traditional trains, automobiles, or airplanes, swiftly becoming popular due to its efficiency and convenience.

The Eurostar service launched in 1994, connecting continental Europe to London via the Channel Tunnel and LGV Nord-Europe using a specialized TGV model adapted for UK infrastructure. The British High Speed 1 line opened in stages—initially in 2003 and fully completed by November 2007—enabling record travel times of 2 hours 15 minutes between London and Paris and 1 hour 51 minutes between London and Brussels. On 3 April 2018, a twice-daily London-Amsterdam route commenced, reducing travel time to 3 hours 47 minutes.

Milestones

Introduced in 1981, the TGV was the second commercial high-speed train operating on standard gauge tracks worldwide, following Japan's 0 Series Shinkansen, which had connected Tokyo and Osaka since 1964. The service achieved significant commercial success.

A TGV test train holds the world speed record for conventional rail vehicles. On 3 April 2007, a specially modified TGV POS reached a speed of under controlled test conditions on the LGV Est line between Paris and Strasbourg. For this attempt, line voltage was increased to 31 kV and additional ballast was applied. This surpassed the previous record of , set in 1990 by another TGV model. The trial was part of Alstom's extensive research initiatives.

In 2007, the TGV maintained the distinction of being the fastest scheduled conventional train globally, averaging speeds of between Champagne-Ardenne and Lorraine stations. However, this record was overtaken in 2009 by China's Wuhan–Guangzhou high-speed railway, where trains averaged speeds exceeding .

On 17 May 2006, a Eurostar (TGV) train established the longest non-stop international high-speed journey record by transporting the cast of The Da Vinci Code from London to Cannes () in 7 hours and 25 minutes at an average speed of .

The fastest long-distance TGV trip was completed by a TGV Réseau unit traveling from Calais-Frethun to Marseille () in just 3 hours and 29 minutes at an average speed of , marking the inauguration of the LGV Méditerranée line in May 2001.

Passenger usage

On 28 November 2003, the TGV network celebrated carrying its one billionth passenger, ranking second only to Japan’s Shinkansen which reached five billion passengers in 2000.

Excluding international travelers, the TGV system transported 98 million passengers in 2008—a rise of 9.1% compared to the prior year.

TGV passengers in millions from 1981 to 2010
1980	1981	1982	1983	1984	1985	1986	1987	1988	1989
Template:Center	1.26	6.08	9.20	13.77	15.38	15.57	16.97	18.10	19.16
1990	1991	1992	1993	1994	1995	1996	1997	1998	1999
29.93	37.00	39.30	40.12	43.91	46.59	55.73	62.60	71.00	74.00
2000	2001	2002	2003	2004	2005	2006	2007	2008	2009
79.70	83.50	87.90	86.70	90.80	94.00	97.00	106.00	114.00	122.00
2010
114.45

Rolling stock

Every TGV train is equipped with two power cars positioned at both ends, linked by semi-permanently coupled articulated passenger coaches that share Jacobs bogies; the end cars have independent bogies, which are frequently motorized.

To extend train length, two TGV sets can be connected through concealed nose couplers located on the power cars.

The articulated carriage arrangement improves safety during derailments by maintaining alignment and stability of the coaches, though it complicates the process of uncoupling carriages without specialized tools.

SNCF prefers using power cars instead of electric multiple units, as this approach reduces the amount of electrical equipment needed.

There are six Alstom-manufactured TGV variants currently operating:

TGV Atlantique (consisting of 10 coaches)
TGV Réseau (an enhanced version of Atlantique with eight coaches)
TGV Duplex (featuring double-deck cars to boost passenger capacity)
TGV POS (initially designed for routes to Germany; now serving Switzerland)
TGV 2N2 (Avelia Euroduplex, an upgrade from Duplex)
TGV M (Avelia Horizon model, scheduled for service commencement in 2025)

Previously retired models include:

TGV Sud-Est (withdrawn in December 2019)
TGV La Poste (retired in June 2015)

Among record-setting trains is the V150 trainset, which reached under test conditions—though such speeds are not viable commercially due to safety and wear concerns; regular service speeds top out at .

All TGV trains support at least bi-current operation to run on both and electrification systems; international services often require tri- or quad-current capabilities.

Each power car carries two pantographs compatible with AC and DC power supplies; operators manually switch pantographs and power modes when crossing electrical system boundaries.

Equipment type	Maximum speed		Seating capacity	Total length		Width		Empty weight (t)	Full weight (t)	Power output (25 kV, kW)	Power-to-weight ratio (empty, kW/t)	Year introduced	Units in Service
Equipment type	km/h	mph	Seating capacity	m	ft	m	ft	Empty weight (t)	Full weight (t)	Power output (25 kV, kW)	Power-to-weight ratio (empty, kW/t)	Year introduced	Units in Service
TGV Atlantique	300 kilometres per hour (190 mph)	485 (459 after rebuild)	238 metres (781 ft)	2.90 metres (9 ft 6 in)	444	484	8,800	19.82	1988	28 trainsets
TGV Réseau	320 kilometres per hour (200 mph)	377 (361 post-rebuild)	200 metres (660 ft)	2.90 metres (9 ft 6 in)	383	415	8,800	22.98	1992	57 trainsets
TGV Duplex	320 kilometres per hour (200 mph)	508	200 metres (660 ft)	2.90 metres (9 ft 6 in)	380	424	8,800	23.16	1994	160 trainsets

TGV Sud-Est

Constructed between 1978 and 1988, the Sud-Est fleet inaugurated TGV service from Paris to Lyon in 1981. The series included 107 passenger sets—nine of which were tri-current (supporting 15 kV AC for Switzerland), while the remainder were bi-current. Additionally, seven bi-current half-sets without passenger seating transported mail for La Poste on routes linking Paris, Lyon, and Provence; these bore a distinctive yellow paint scheme until their retirement in 2015.

Each trainset comprised two power cars flanking eight coaches with a total seating capacity of 345. The design featured a powered bogie adjacent to each power car. The trains measured 200 meters in length and had a width of 2.81 meters, weighing approximately 385 tonnes and delivering 6,450 kW under a 25 kV supply.

Initially engineered for speeds up to 270 km/h, most sets underwent mid-life upgrades allowing operation at 300 km/h ahead of the LGV Méditerranée's launch. Sets that remained limited to 270 km/h typically served routes with shorter LGV sections—such as those toward Switzerland via Dijon—where speed enhancements were not cost-effective.

These trains were phased out in December 2019. The first-ever TGV train, known as TGV 01 ("Patrick"), completed a farewell tour during late 2019 and early 2020, displaying all three liveries it had worn throughout its operational life.

TGV Atlantique

Constructed between 1988 and 1992 to coincide with the inauguration of the LGV Atlantique, the Atlantique fleet consists of 105 trains that began operation in 1989. These bi-current trains measure 237.5 meters in length and 2.9 meters in width, with a total weight of 444 tonnes spread across two power cars and ten passenger carriages, accommodating 485 travelers. Engineered for maximum speeds of 300 km/h, they generate 8,800 kW under a 25 kV supply.

When operating at full occupancy, the Atlantique achieves an impressive efficiency of 767 passenger miles per gallon (PMPG). With average load factors near 60%, this figure typically stands at approximately 460 PMPG—far surpassing the efficiency of a Toyota Prius carrying three occupants, which reaches only 144 PMPG.

Unit number 325 established a world speed record in 1990 on the LGV Atlantique prior to public service commencement. To enable speeds beyond 500 km/h, modifications included refined aerodynamic design, larger wheels, and enhanced braking systems. The trainset was shortened to two power cars and three carriages—the minimum configuration allowed by Jacobs bogies—reducing weight to 250 tonnes to optimize the power-to-weight ratio.

TGV Réseau

The initial TGV Réseau trainsets entered service in 1993 following procurement of fifty bi-current units in 1990 and forty tri-current units between 1992 and 1993, which added support for Belgium’s 3,000 V DC electrification system. Among these, ten tri-current sets—designated PBA (Paris-Brussels-Amsterdam)—feature the Eurostar Red livery, formerly associated with Thalys.

Each trainset comprises two power cars delivering 8,800 kW under 25 kV and eight passenger coaches, providing seating for 377 individuals and achieving top speeds of up to 320 km/h. The bi-current variants measure approximately 200 meters long by 2.90 meters wide and weigh around 383 tonnes. Tri-current models incorporate weight-reduction techniques such as aluminum components and hollow axles to comply with Belgian axle load restrictions.

To alleviate early passenger discomfort caused by rapid pressure changes experienced in tunnels on the LGV Atlantique line, Réseau trains are equipped with pressure-sealed cabins and are compatible for coupling with Duplex trainsets.

TGV Duplex

The TGV Duplex was developed to enhance passenger capacity without extending train length by introducing double-deck carriages accessible through lower-level doors designed to match French platform heights. Each set offers seating for 512 passengers; when operated in pairs on heavily trafficked routes like Paris-Marseille, capacity exceeds one thousand seats. The design also includes compartments accessible for wheelchair users.

Originating from development efforts beginning in 1988 under the initial designation TGV-2N, the first batch of thirty units was manufactured between 1995 and 1998, with additional deliveries commencing from the year 2000 onward. Currently, the fleet comprises 160 units forming the core of SNCF’s high-speed network. Each trainset weighs approximately 380 tonnes and spans about 200 meters in length, consisting of two power cars and eight aluminum-bodied coaches. The bi-current power cars produce an output of 8,800 kW and enable maximum speeds up to 320 km/h.

Duplex trains operate extensively across all French high-speed rail lines.

TGV POS

Designed for service on the LGV Est corridor connecting Paris with Eastern France and Southern Germany, TGV POS trainsets combine two Duplex-derived power cars with eight carriages similar to those used on TGV Réseau models. They deliver a total power output of 9,600 kW and reach speeds up to 320 km/h. Unlike previous variants such as TGV-A, TGV-R, or TGV-D, POS units employ asynchronous motors that allow for individual motor isolation in case of malfunction.

Avelia Euroduplex (TGV 2N2)

Representing the third generation of Duplex trains, the bi-current TGV 2N2—marketed as Avelia Euroduplex—entered service starting December 2011. These tri-current trains operate on routes extending into Germany and Switzerland and were introduced partly to accommodate increased demand following the launch of the LGV Rhine-Rhone line. Numbered from series 800 onward, they are limited to [speed limit omitted] and feature ERTMS compatibility enabling operation into Spain, akin to the Dasye variant.

TGV M Avelia Horizon

The TGV M concept was developed as part of SNCF's initiative to modernize its fleet, with an order placed in 2018 for 100 trainsets, planned for delivery beginning in 2024. Each unit, consisting of eight cars, is estimated to have a price tag near €25 million.

TGV technology beyond France

TGV innovations have been implemented in various international rail systems:

Spain's AVE network employs the Renfe Class 100, which is derived from the TGV Atlantique model.
Eurostar runs cross-border high-speed services linking France with Belgium, Germany, the Netherlands, and the United Kingdom, utilizing trainsets based on TGV designs (e300, PBA, PBKA).
South Korea's Korea Train Express includes the KTX-I, inspired by the TGV Réseau, along with the KTX-Sancheon.
The American Acela Express is a high-speed tilting train developed by Alstom and Bombardier for operation on the Northeast Corridor. It incorporates TGV-derived components such as motors, drivetrain technologies, regenerative braking, and disc brakes, but these are reinforced to comply with U.S. crash safety regulations. The train’s cars are based on Bombardier’s LRC design.
Scheduled for introduction in 2025, the Avelia Liberty (Acela II) will succeed the current Acela Express.
Morocco commissioned Alstom for a €2 billion high-speed line between Tangier and Casablanca, inaugurated in 2018 and employing TGV Euroduplex technology.

Operational lines

By June 2021, France’s high-speed rail network comprised roughly of Lignes à Grande Vitesse (LGV), with four additional segments under construction. These routes predominantly extend outward from Paris along four principal corridors.

Safety record and incidents

Throughout more than four decades of service, the TGV has maintained a record free of passenger fatalities during standard high-speed operations. Several incidents have occurred, including four derailments at or above , with only one—during a test run—resulting in overturned carriages.

This impressive safety performance is partially credited to the train’s articulated structure, which improves stability. Fatal accidents involving TGV trains have taken place on lignes classiques, where conventional rail risks such as level crossings exist; one such fatality was due to a terrorist bombing unrelated to train velocity.

On LGVs

14 December 1992: At Mâcon-Loché TGV station, TGV 920 derailed at because of a wheel flat that caused a bogie derailment on track switches. No passengers aboard were injured; however, 25 individuals on the platform sustained minor injuries from debris.
21 December 1993: Near Haute Picardie station, TGV 7150 derailed at , caused by an undetected subsurface cavity dating back to World War I. The leading power car and four coaches derailed but remained aligned on the track. One passenger suffered minor injuries.
5 June 2000: Eurostar 9073 experienced a derailment at , close to Croisilles, following a transmission component failure that led to four bogies leaving the rails. Among the 501 passengers onboard, seven had bruises while others received treatment for shock.
14 November 2015: The Eckwersheim accident involved TGV 2369 during testing on the second phase of LGV Est. Excessive speed caused the derailment, resulting in 11 deaths and 11 serious injuries.

Incidents on conventional routes

On 31 December 1983, a bomb, reportedly placed by the terrorist faction led by Carlos the Jackal, detonated on a TGV traveling from Marseille to Paris, resulting in two fatalities.
On 28 September 1988, TGV 736 crashed into a lorry transporting a 100-tonne electrical transformer that was immobilized on a level crossing in Voiron, Isère. The truck did not have the necessary authorization. The accident caused the deaths of the train engineer and one passenger; 25 others sustained minor injuries.
On 4 January 1991, following brake malfunction, TGV 360 escaped from Châtillon depot and struck the vehicle loading platform at Paris-Vaugirard station around . No casualties occurred; however, the leading power car and the first two coaches were heavily damaged and subsequently reconstructed.
On 25 September 1997, TGV 7119 en route from Paris to Dunkerque, operated by set 502, collided at with a 70-ton asphalt paving machine located on a level crossing in Bierne. Seven individuals were injured; the power car was spun around and tumbled down an embankment.
On 31 October 2001, TGV 8515 derailed near Dax at due to a fractured rail. All ten carriages left the tracks; the rear power unit overturned.
On 30 January 2003, a TGV traveling from Dunkerque to Paris collided at with a heavy goods vehicle trapped on a level crossing at Esquelbecq. The front power car sustained severe damage; only the driver suffered minor injuries.
On 19 December 2007, a TGV running from Paris to Geneva struck a truck at approximately near Tossiat in eastern France. The truck driver was killed; one train passenger was seriously hurt and twenty-four others experienced minor injuries.
On 17 July 2014, a TER train impacted the rear of a TGV at Denguin in Pyrénées-Atlantiques, resulting in forty people being injured.

Because of recurrent accidents involving level crossings, initiatives have prioritized eliminating all level crossings on lignes classiques utilized by TGV services. For instance, the ligne classique between Tours and Bordeaux, adjacent to LGV Atlantique, is free of any level crossings.

Opposition to the TGV

Environmental demonstrations commenced in May 1990 amid planning for LGV Méditerranée, where protestors obstructed a railway viaduct, claiming that existing rail lines adequately served Marseille-Lyon travel demands.

The Turin–Lyon high-speed railway, designed to connect Italy’s TAV system with the TGV network, has encountered resistance within Italy. Although most political factions endorse the project, local communities oppose construction due to fears regarding the storage of hazardous materials such as asbestos and potentially uranium extracted during tunnel excavation. Managing these materials involves expensive safety procedures. The project's commencement was postponed by six months for additional evaluation. Moreover, RFB—a national organization opposing Italy’s high-speed rail expansion—actively campaigns against this development.

Complaints about noise generated by TGV operations near residential areas have led SNCF to erect sound barriers along numerous LGV segments; nevertheless, protests persist where noise issues remain unresolved.

On July 26, 2024, coinciding with the inauguration of the 2024 Olympic Games, an arson attack targeted the TGV network. This incident disrupted travel for roughly 800,000 passengers; Eurostar services experienced significant impact with one-quarter of trains canceled.

Mail transportation services

TGV trains were also utilized for postal delivery operations. For several decades, the SNCF TGV La Poste service handled mail transport on behalf of the French postal authority, La Poste, employing specially designed TGV carriages without windows, adorned in La Poste’s distinctive yellow and blue colors. This particular mail service concluded in June 2015.

Mobile medical units

In response to the COVID-19 pandemic, multiple TGV trains were repurposed as mobile hospitals to relocate critically ill patients from hospitals in Eastern France experiencing capacity shortages to facilities in the western regions. Each carriage was configured to hold up to six patients and staffed by a medical team comprising 50 personnel. The trains’ ability to accelerate and decelerate smoothly facilitated ongoing medical care during transit.

Brand evolution

Starting in July 2017, the TGV brand underwent a phased transformation with the introduction of TGV inOui and Ouigo as part of preparations for the liberalization of France’s high-speed rail market.

TGV inOui

TGV inOui represents SNCF’s upscale high-speed rail service. Its name is inspired by the French term inouï, which translates to "exceptional" or "unheard of."

Ouigo

Ouigo is SNCF’s budget-friendly high-speed rail option, characterized by single-class, high-capacity trains offering fewer onboard services. It mainly operates from secondary stations, occasionally located outside major city centers. The brand name cleverly combines the English phrase "we go" with the French affirmative "oui" (yes).

External links

(English)
Archived TGV Website (English)

TGV