With the first-ever commercial operation of the KTX between Seoul and Busan, and Seoul and Mokpo on April 1, South Korea opened the era of for high-speed trains.
The TGV has already shown that it can travel at speeds in excess of 500 kph, but the standard for networks is currently set between 300 kph and 320 kph and might be increased to 350 kph.
A high speed train system, such as a TGV system, is a complex and highly-tuned integration of a high speed line (infrastructure) and high speed trains (rolling stock).
