High-speed rail
High-speed rail is a type of rail transport that operates significantly faster than traditional rail traffic, using an integrated system of specialized rolling stock and dedicated tracks. While there is no single standard that applies worldwide, new lines in excess of and existing lines in excess of are widely considered to be high-speed, with some extending the definition to include lower speeds in areas for which these speeds still represent significant improvements. The first such system began operations in Japan in 1964 and was widely known as the bullet train. High-speed trains normally operate on standard gauge tracks of continuously welded rail on grade-separated right-of-way that incorporates a large turning radius in its design.
Wuhan–Guangzhou high-speed railway
In August 2011 the maximum speed of Chinese high-speed trains was reduced to following the Wenzhou train collision but was restored to 350km/h in late 2017. In August 2011 the fastest trains between Wuhan and Guangzhou South, with one stop at Changsha South, had a scheduled trip time of 3 hours and 33 minutes.