Fastest Train in the world -TVG,France
The TGV (train à grande vitesse,
French for "high-speed train") is France's high-speed rail service
developed by GEC-Alsthom (now Alstom) and SNCF, the French national rail
operator, and operated primarily by SNCF. Following the inaugural TGV
service between Paris and Lyon in 1981, the TGV network, centered on
Paris, has expanded to connect cities across France and in adjacent
countries. It set the record for the
fastest wheeled train, having reached 574.8 km/h (357 mph) on 3 April
2007, and also holds the world's highest average speed for a regular
passenger service. TGV is a registered trademark of SNCF.
The
success of the first line led to an expansion of the network, with new
lines built in the south, west, north and east of the country. Eager to
emulate the success of the French network, neighbouring countries such
as Belgium, Italy, Spain and Germany built their own high-speed lines.
TGVs link with Switzerland through the French network, with Belgium,
Germany and the Netherlands through the Thalys network, and the Eurostar
network links France and Belgium with the United Kingdom. Several lines
are planned, including extensions within France and to surrounding
countries. Towns such as Tours have become a part of a "TGV commuter
belt".
TGV trainsets travel at up to 320 km/h (200 mph) in commercial use. A specially modified
2 engine car trainset (coaches removed) reached 574.8 km/h (357 mph) on
a test run. The double decker TGV narrowly missed beating the overall
world train speed record of 581km/h (360.8mph), which was reached in
2003 by a Japanese maglev train.
The method used to achieve record-breaking speed, however, is
impractical for commercial applications because of motor overcharging,
empty train weight, rail and engine wear issues, elimination of all but
two coaches, excessive vibration, noise and lack of emergency stopping
methods.
The high speed of the TGV is made possible through the use of specially-designed LGVs (lignes à grande vitesse,
high-speed lines) without sharp curves and with high-powered electric
motors, enlarged wheels, low axle weight, articulated carriages and
in-cab signalling (eliminating the need for drivers to view lineside
signals at high speed). TGV trainsets are manufactured primarily by
Alstom, now often with the involvement of a subcontractor, such as
Bombardier. Except for a small series of TGVs used for postal freight
between Paris, Lyon and Provence, the TGV is primarily a passenger
service. Trains derived from TGV designs operate in South Korea (KTX),
Spain (AVE) and USA (ACELA Express).
Travel
by TGV has largely replaced air travel between connected cities, due to
shorter travel times (especially for trips taking less than three
hours), reduced check-in, security and boarding formalities, and the
convenient location of stations in the hearts of cities. The TGV is
generally a safe mode of transport, but there have been accidents; there
have been train passenger fatalities twice from collisions and once due
to terrorism, but nothing like the Eschede train disaster.
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