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High-speed rail (HSR) in China refers to any railway in China with commercial train service at the speed of or higher as internationally recognized. By this definition, China has the world's longest HSR network with over of track in service as of December 2014 ( km if mixed railway with freight services included) which is more than the rest of the world's high-speed rail tracks combined, and a length of is under construction or in planning. China's high speed rail system also includes the world's longest line, the Beijing–Guangzhou High-Speed Railway. Since high-speed rail service in China was introduced on April 18, 2007, daily ridership has grown from 237,000 in 2007〔(【引用サイトリンク】title=铁道部：中国高铁已累计安全运送旅客6亿多人次-大众之声-景德镇铁路建设办公室 )〕 to 2.49 million in 2014, making the Chinese HSR network the most heavily used in the world. Cumulative ridership had reached 2.9 billion by October 2014. The nationwide HSR network, which extends to 28 of the country's 33 provinces and regions, consists mainly of conventional track railways including upgraded mixed passenger and freight lines, newly built passenger designated lines (PDLs) and intercity lines.〔("High-speed rail a vital social good" ''Global Times'' ) 2014-12-15〕 There is also the Shanghai Maglev, the world's first high-speed commercial magnetic levitation (maglev) line, which is owned and operated by the Shanghai municipality government. Nearly all high-speed rail lines and rolling stock are owned and operated by the China Railway Corporation, the state enterprise formerly known as the Railway Ministry. Over the past decade, the country has undergone an HSR building boom with generous funding from the Chinese government's economic stimulus program. The pace of high-speed rail expansion slowed for a period in 2011 after the removal of Chinese Railways Minister Liu Zhijun for corruption and a fatal high-speed railway accident near Wenzhou, but has since rebounded. Concerns about HSR safety, high ticket prices, low ridership, financial sustainability of high-speed rail projects and environmental impact have drawn greater scrutiny from the Chinese press. China's early high-speed trains were imported or built under technology transfer agreements with foreign train-makers including Alstom, Siemens, Bombardier and Kawasaki Heavy Industries. Chinese engineers then re-designed internal train components and built indigenous trains that can reach operational speeds of up to .〔("China's fastest high speed train 380A rolls off production line" ''Xinhua'' ) 2010-05-27〕〔("时速380公里高速列车明年7月开行" ) 2010-11-02〕 ==History== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「High-speed rail in China」の詳細全文を読む スポンサード リンク
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