Japan's Shinkansen, the world's first high-speed rail line, has expanded since 1964 into a network covering 2,765km and is capable of a top speed of 320km/h, as well as 284km of mini Shinkansen lines with top speeds of 130km/h. The Chinese program began in 2004, when the Ministry of Railways called for bids to build a high-speed train that can run...