TGV is an electric oar built in France ready to circulate at the speed of 270 km/h to 320 km/h in commercial exploitation according to the types. It was initially developed by the SNCF and was built by division transport of the company Alstom (in the past GEC Alsthom). More precisely they are two independent motor coaches framing eight or ten cars.
Except three specifically arranged TGV used by La Poste between Paris and Lyon, the TGV is exclusively a service of passenger transports.
The initials TGV meant in the beginning “ Très High speed ” in the denomination of the first experimental Turbotrain TGV 001. It was a question of marking a new stage, by exceeding 200 km/h practiced (parsimoniously) on the traditional network since 1967. The everyday usage of these initials to indicate this oar made evolve naturally its significance to “Train at High speed”.
Today, “ TGV ” is a Registered trademark of the SNCF. The logo of mark TGV, with the metallized aspect, is supposed to evoke fluidity, the speed and the power of the train. With back, the logo can evoke a Escargot, the speed of the TGV being thus put in opposition of this symbol of slowness. The current slogan of the TGV is TGV, take time to go quickly ; it was before TGV: Save time over time .
See also: History railway high speed in France
August 1st
The 1 {{er}} August 1966, a research center is born with the SNCF, with the launching of the study “possibilities railway at very high speed on new infrastructures”, the project “CO3”, which combines the high speed and the clocking. This project innovates at the same time by the idea of the creation of new lines and by the attention paid to quality of service and tariffing, whereas the policy of the SNCF at that time aimed firstly the reduction of the costs. After presentbeing presented to the public authorities in 1969, project CO3 is adopted in inter-ministerial committee the March 25th 1971.
In its first version, the TGV was to be mû by gas turbines. This choice was justified by the relatively small size of the turbines, them specific Power high and their capacity to deliver a power raised during an important time. The first prototype TGV 001, left the workshops Alsthom of Belfort the October 25th 1971 and was the only oar of this type ever built.
July 28th, 1978, delivery of first oar TGV of preproduction TGV001. The tests of the TGV 001, which began the April 4th 1972, brought however much of useful lesson following the project, in particular in the field of the old Frein with high-speed, which required to dissipate an important quantity of kinetic energy, Aérodynamique and indication. The oar was articulated, two adjacent cases resting on a common Bogie while preserving a possibility of relative movement.
This prototype reached the speed of 318 km/h, which to date remains the railway world speed records in thermal traction. Style of the TGV, as well interior as external with the nose characteristic of the motor coaches, to the designer French Jacques Cooper is due and marked the following generations of material.
The passage to the electric traction forced to take again the research program and of tests in many fields.
The SNCF transformed into 1974 a railcar Z 7100 to build the prototype Z 7001 called Zébulon, which made it possible to test several innovations:
In 1974, the president Pompidou decided launching of the project, and the Prime Minister Pierre Messmer decided the March 5th to engage the construction of a first line between Paris and Lyon, South-eastern LGV (LN1).
The project was entirely financed by the SNCF, primarily on loans. That involved an explosion of the Endettement of the national company. This debt will lead with other reasons (directives voted by the European Parliament in particular) to the reform of 1997 which will see the creation of RF.
According to a trial run carried out with two oars of preproduction, the first order was delivered starting from the April 25th 1980. Service TGV opened with the public between Paris and Lyon the September 27th 1981.
The initial target was the business trips between these two cities, but right from the start, the great majority of the oars were opened with the second class. Considerably reduced run time compared to the former situation (grace also to the more direct layout of the line, which brought back the distance between the two towns of 512 to 426 kilometers) made it possible to acquire new market shares with the detriment of the car and aviation.
The innovation was not only technical, but also commercial:
See also: World speed records of the TGV
The TGV was not the first Train at high speed to enter in business service the world. The Shinkansen Japanese connected Tōkyō to Ōsaka as of on October 1st 1964, nearly 17 years before the first TGV.
Even if this realization were accompanied by the construction of a new line and a true service of mass, it should be noted that its speed was only of 210 km/h in the beginning, that is to say hardly more than 200 km/h practiced in business service by some TEE starting from 1965 in Germany, and of 1967 in France.
The February 26th 1981, oar 16 of the TGV obtained first speed records on South-eastern LGV to 380 km/h. The purpose of these speed records, for which tens of journalists had been invited, were not to add a new record to the prize list of the SNCF, but rather to reassure the future travellers, by showing that 260 km/h to which they would be transported soon could be reached in full safety.
After a German oar of tests InterCityExpress (ICE-V) of the Deutsche Bahn (dB) had rolled to 406.9 km/h on the line at high speed Hanover - Würzburg on May 1st 1988, the SNCF improved semi-officially this record the December 12th 1988 while making roll oar TGV PSE 88 to 408.4 km/h on South-eastern LGV during tests of the chain of synchronous traction of the futures Atlantic TGV.
The May 18th 1990, the TGV obtained the world speed records on rail, to 515.3 km/h on LGV Atlantique, with an oar of test Atlantique numbered 325 shortened with three intermediate cases instead of ten.
The April 3rd 2007 towards 13:15 on LGV Is European, the SNCF beats its own record while managing to make roll the oar of tests 4402 at the speed of 574.8 km/h (either 159.6 meters/second). This speed corresponds to Mach 0,47 (for a temperature of 15 °C)! This record lay within the scope of the program “V150” aiming at exceeding the speed of 150 m/s (either 540 km/h). A Duplex oar made up of three trailers only had been especially prepared and its power had been doubled compared to the traditional TGV. It had wheels of a large diameter and the car in the center of the oar was equipped with Bogie S motorized of future AGV. For the remainder, this train was similar to a train of series the SNCF. During the phase of tests, the speed of 568 km/h had been reached already. It was a question on April 3rd of obtaining approved speed records.
The TGV also established a record of endurance , on May 26th, 2001 in the railroads with the way Calais - Marseilles (1067 km) in 3:29, during the inauguration of LGV the Mediterranean. It also established the May 17th 2006 a world records of the more long distance traversed without stop by a passenger train , while transporting in an oar Eurostar the team of the film Da Vinci Code of London to Cannes, that is to say 1421 km in 7:25.
The TGV remains, in 2007, the train on the fastest rail in the world in business service (in Japan, the Maglev holds the speed records for the trains with magnetic lift, and in China, the Transrapid of Shanghai was the object of an commercial exploitation). Recently, an average standard course was established to 263.3 km/h mean velocity of station at station.
See also: Contenu=Voir also the section devoted to the ''' [[#Les services]], [[services]] '''
After the opening in 1981 of South-eastern LGV allowing connections between Paris and the South-east of the France, the network of new lines did not cease extending, while the service roads were well to beyond thanks to compatibility with the traditional network:
the first TGV “province-province” were launched in 1984 between Lille and Lyon via the Grande Belt, and in 1986 between Rouen and Lyon.
In 1993, it is with the tower of Northern LGV more largely to open the TGV with the international traffic, with the Eurostar towards London and the Thalys towards the Benelux, without counting the new stations served in France.
LGV Interconnexion Is made it possible in 1994 to shorten the ways “province-province”, and to serve other stations franciliennes that the only Parisian stations.
LGV the Mediterranean allowed in 2001 to bring closer the the Mediterranean to Paris, and to extend network TGV once again. TGV also go in Suisse and Italy, respectively under the marks Lyria and Artésia.
Enfin LGV Is European, open the June 10th 2007, which still extends the network towards the East of the France, the Germany, the Luxembourg and even the Suisse. On this date the network represents 1847 km.
The lines the Rhine-Rhone and Perpignan-Figueres - Barcelona is in construction, while many other projects also exist.
LGV represent, in 2006, an overall length of 1550 km, that is to say approximately 5% network in exploitation in France.
The articulation between two cases calls upon an original device which makes it possible to solidarize with damping the two cases.
This provision has several advantages:
Two oars can be coupled in multiple unit what makes it possible to double the capacity offered by a train. Impossibility of easily separating the trailers from the central section requires installations of lifting able to raise a whole oar in the maintenance workshops. Running on traditional railways, the TGV is perfectly compatible with the existing installations, since they are electrified.
However, the waves generated by the friction of the pantograph move, on a traditional Caténaire, at a speed close to 350 km/h. When the train runs at a speed close to these waves, it can catch up with them. The pantograph is not then any more in contact but per moments with the overhead line, which causes a power supply intermittently, preventing a normal circulation of the oar. It is thus necessary to more tighten the overhead line to face circulations with high speeds to 350 km/h, which accelerates its wear. With the record of March 2007, the speed of the wave was about 620 km/h, hardly higher at the speed reached (574 km/h).
At the end of the years 1980, the development of the electronic of power made it possible to substitute the synchronous motor for the engine for D.C. current. These engines are initially supplied using Onduleur S of current with Thyristor (1988). At that time the electronics of power necessary to their food is much simpler than that required by the asynchronous motor .
The use of synchronous motors had several advantages:
Nevertheless, the synchronous motor is more expensive and requires more maintenance than the asynchronous motor . With progress of the electronics of power (inverter of tension with IGBT), this last will supplant the synchronous motor as of the middle of the years 1990 in almost all the fields of traction. This type of motorization is installed on the motor coaches of Eurostar, with thyristors GTO, and maintaining on TGV POS, with thyristors IGBT.
For the following generations of TGV (TGV-R TGV-DUPLEX TGV-POS), the computers are connected between them by network TORNAD. It is about a network of the type Token drunk (802.4).
See also: Matériel_moteur_de_la_SNCF#Rames_TGV, Material engine of the SNCF
The SNCF exploits in April 2007 a park of 427 oars TGV:
The total park will be of 585 oars with the whole of the order (80) and the options (40) of June 27th, 2007
The SNCF envisages a public invitation to tender for oars on a floor new generation for startup from 2012 of 20 oars per annum.
On the level of the evolutions of the TGV, since 2005, the SNCF undertakes the progressive restoration of all its TGV. Those from now on are equipped by the large Christian Lacroix dressmaker. These new TGV comprise less seats than the old ones.
See also: Line at high speed
This train borrows ways especially built from its intention (the LGV or Lignes at high speed ) at speeds of about 300 km/h. The radii of curvature of the lines are adapted (equal to or higher than 4000 m, 6000m on LGV Is European), just as the indication (it is about an embarked indication or Cab signal) which authorizes 320 km/h on the most modern lines (LGV Is European as well as a portion of the LGV the Mediterranean). These lines known as new are enclosed by nettings, to avoid clashes with the animals, and do not comprise any level crossing. On the other hand, contrary to the major lines of the traditional network, these lines have a sometimes severe profile, as at the time of the crossing of the Morvan by South-eastern LGV (slopes of 35 ‰.
See also: List of the stations served by TGV
It is in 1981 that first service TGV between Paris and Lyon was launched, using part of the “South-eastern LGV” known as “New Line 1” (LN1) still partially in construction (completion 1983, with one run time between the two cities carried of 2:40 to 2:00).
Right from the start service TGV continued by traditional way towards some other cities of South-east: Marseilles, Montpellier and middle stations. Since, network TGV centered on Paris extended until connecting from now on many French cities, partly thanks to the construction of new lines at high speed towards the south, the west, north and soon is France since June 10th, 2007. However the relatively weak mileage of new lines (approximately 1800 km in June 2007) made that today still the TGV reaches many cities only by continuing its course on traditional or arranged railway line, at speeds going from 160 to 220 km/h (case of Rennes, Bordeaux, Toulouse or Basle).
The service roads in the TGV use the new lines on part of their courses and continue on the traditional network at distances sometimes rather long, including in the adjoining countries of France. The majority are radial service roads on the basis of Paris or there arriving, some follow transverse relations avoiding intramural Paris by borrowing the line of interconnection from the east of the capital or the Grande Belt in the south. The TGV serve more than 150 Gare S in France, including eight in Île-de-France and more than one about thirty in the countries bordering.
Innovation in France out of the suburban connections, the axes Paris-Brussels, Paris-Lille and Paris-Lyon have given rhythm time (departures and arrived at the same minutes of each hour during all the day).
transverse Service roads:
At the beginning of London - Waterloo until November 13rd, 2007 and of London-Saint Pancras starting from November 14th, 2007, serves (via Ashford):
Morocco ordered lines of TGV which will link Tangier with Casablanca then Casablanca with Marrakech. Work will be completed in May 2013.
Moreover, even when LGV exist, the stations of the medium-sized cities located on the traditional lines which they double often lose their connections “Broad outlines”. It is for example the case of Sens and Villefranche-sur-Saône following the opening of South-eastern LGV, or of Arles after the opening of LGV the Mediterranean.
This lapse of memory of the areas close to Paris (Normandy) or with weak density of population (Massif Central) is due to the conditions of economic profitability railway high speed: the construction of the infrastructures dedicated to the trains at high speed being very expensive, it is necessary to lay out of massive flows travellers on the courses to be able to make profitable the lines by their intensive use (more than 10 trains per hour on average in each direction between 6:00 and 22:00). Let us notice in the passing that the same problem of profitability arises for the highways.
Moreover, it is necessary to have a course without sufficiently long stop to profit fully from the positive effects railway high speed, or else the cost-benefit assessment high speed becomes contestable.
It should not either be forgotten that the construction of a line at railway high speed crossing a little populated area does not constitute in it even necessarily a good news in measurement or the TGV can constitute as much an avoidance or an impoverishment of the service roads in order to protect the profit of speed of the new line only one solution for opening-up. The TGV has the role first to bring closer the poles structuring to the French territory (Paris, Lille, Nantes, Bordeaux, Lyon, Marseilles…) or Europeans (London, Brussels, Geneva, Amsterdam, Frankfurt…) and not to change the particular characteristics of each territory often inherited the past. By pushing the paradox until the end one could almost affirm that it is a tool of repolarization of national and European space around its poles of force.
The distribution of the park between the workshops was at January 1st, 2006 the following one:
since April 2006, a new workshop entered in service, the technicentre of Ourcq, to ensure the maintenance of the oars intended for the TGV Is (52 oars affected as from June 2007).
Is France knew in the past an important rail traffic of goods (Houille and Fer in particular) which strongly decreased. The industrial facilities of the SNCF partly remained, thus an important maintenance workshop of the TGV, dedicated to the great periodic revisions, is with Bischheim, in the suburbs of Strasbourg. The TGV go there in noncommercial circulation (or “out of W”, for vacuum travellers, in the jargon railwayman).
The ways can be inspected at the block speed of 300 km/h the assistance of a named specific car Mélusine. Since 2006 a complete oar is assigned to this service, allowing a more complete range of measurements, as well as lodging on board personnel; it is about the oar tricourant Réseau n° 4530 famous Iris 320.
In 2004, the TGV transported 85 million travellers to France (this figure relates to only the national traffic, the international service roads being managed by specific companies). This traffic is in growth of 4%, that is to say 3 million additional travellers compared to the previous year. The turnover corresponding rises to 3 billion euros, in progression of 7,3%.
At the end of the year 2004, its market share (compared to the plane) is established in 68% on the Paris-Marseilles line, and in 66% on Paris-Bordeaux.
There are 1000 drivers including two women among: 17000 of the SNCF.
After 1 month of exploitation, the SNCF announces on July 9th, 2007 to have transported a million people on the TGV Is, that is to say: 33000 on average per day with 100 daily circulations.
The occupancy rates of the TGV East are very good (on average of 88% in second class and 75% in 1st class) but the rate of regularity of the TGV Is on average only of 86%. As comparison the regularity 2006 average of Eurostar was of 91,5% and 92% in the first half of 2007 (Eurostar press release).
*** including ICE as from 2007
See also: Accidents of TGV
In 25 years, the TGV knew several accidents including three Déraillement S at high speed, causing however only some slightly injureds. Deaths were however deplored at the time of collisions on traditional line with road vehicles at more modest speeds. The oars, same partially run off the line, always remained in their normal position, except for one only case, in October 2001 in the Moors, where a motor coach lay down on the side following the break of a rail. This stability is allotted partly to the rigidity which its articulated structure gives to the oar.
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