South Korea unveiled a fully working prototype of its next-generation high speed
train that can reach speeds of up to 430 kilometers per hour, the government
said Thursday.
The new train, called the Highspeed Electric Multiple
Unit 400kmh eXperiment (HEMU-430X), was launched at a station in Changwon, 395
kilometers southeast of Seoul, the Ministry of Land, Transport and Maritime
Affairs said.
The HEMU is the fourth fastest in the world after trains
developed in France, China and Japan, it said. A bullet train made by France
reached speeds of up to 575 kilometers per hour on test runs, while Chinese and
Japanese machines hit 486 kilometers and 443 kilometers, respectively.
The prototype is made up of two power cars at the front and rear and four
passenger coaches with multiple motor units. This technology is the latest trend
in bullet trains and enables all coaches to deliver power to the tracks, which
improves acceleration and deceleration performance compared to those that rely
on one or two power cars to move the train forward. This arrangement can permit
a larger number of rolling stocks to be operated simultaneously.
The
ministry said it has injected 93.1 billion won (US$79.7 million) into the
development of the train since 2007 with Korea Railroad Research Institute and
Hyundai Rotem Co. engaged in the design and building of the train.
Initial estimates showed the entire trainset can reach 300 kilometers per hour
in 233 seconds, an improvement of about 120 seconds compared to the country's
current KTX and KTX-Sancheon trains, it said.
The ministry said
advances in technology have made it possible to add 16 percent more seats on
coaches with the design allowing for coaches to be added or detached easily
depending on demand. Some bullet trains have semi-permanently attached carriages
that affect operational flexibility.
It added that the HEMU is quieter
and about 5 percent lighter than the KTX-Sancheon, which is the first
locally-built bullet train and currently operates at speeds of up to 300
kilometers per hour.
The new train will be rigorously tested and
driven for at least 100,000 kilometers until 2015, with actual passenger
operations to begin in 2016 or 2017.
Because the trains will have an
operational top speed of around 370 kilometers per hour, it could enable
passengers to reach any part of South Korea in 90 minutes. As a result, the high
speed trains could greatly facilitate domestic travel and promote use of public
transportation.
South Korea has operated the French-built KTX bullet
train, capable of reaching speeds of 300 kilometers per hour, since April 2004.
In addition, South Korea developed the KTX-Sancheon that has been in service
since March 2010.