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Higher-speed rail (HrSR), also known as high-performance rail〔"(H.R.4361 -- National High Performance Passenger Rail Transportation-Oriented Development Act of 2012 )" 112th Congress of the United States. Retrieved 10 September 2013.〕 or higher-performance rail, is a jargon used to describe inter-city passenger rail services that have top speeds of more than conventional rail but are not high enough to be called high-speed rail services.〔 The term is also used by planners to identify the incremental rail improvements to increase train speeds and reduce travel time as alternatives to larger efforts to create or expand the high-speed rail networks. Some countries use the term medium-speed rail, or semi-high speed rail instead. ==Definitions== As with the definitions of high-speed rail, there is no universal definition of higher-speed rail either. The term has been used by government agencies, government officials, transportation planners, academia, the rail industry, and the media, but sometime with overlaps in the speed definitions. Some countries with an established definition of higher-speed rail include: * In Canada, according to the Surface Transportation Policy, Department of Transport, the speed range for higher-speed rail is between . * In India, according to the Minister of Railways, the speed range for India's higher-speed rail will be between . * In Indonesia, the government is considering higher-speed rail options, referred to as medium-speed railway. The speed range is between * In the United Kingdom, the term higher-speed rail is used for upgraded tracks with train speeds up to 〔(【引用サイトリンク】url=http://www.publications.parliament.uk/pa/cm201012/cmselect/cmtran/1185/1185vw09.htm )〕 * In the United States, the term "higher-speed rail", as opposed to "high-speed rail", is used by regional planners in many U.S. states to describe inter-city passenger rail services with top speeds of between and .〔(【引用サイトリンク】url=http://www.letsgetmoving.org/images/uploads/pages/RTA-bkfst-final.pdf )〕〔(【引用サイトリンク】url=http://cascadiahighspeedrail.org/faq/default.html )〕〔(【引用サイトリンク】url=http://www.rich2hrrail.info/downloads/RHRPublicHearing%20Exhibits-ProjectInformation.pdf )〕 This is the equivalent of the definition of "Emerging High-Speed Rail" as defined by the Federal Railroad Administration. However, the Congressional Research Service defines "Higher Speed Rail" as rail services with speeds up to and defines rail services on dedicated tracks with speeds over as "Very High Speed Rail".〔(【引用サイトリンク】url=http://www.fas.org/sgp/crs/misc/R42584.pdf )〕State-level departments of transportation and council of governments may use different definitions. Below is the list of known definitions of higher-speed rail which use some of the 5 speed levels, , , , and : : * In Thailand, higher-speed rail, which is called medium-speed rail there, has top speeds of up to .〔 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「Higher-speed rail」の詳細全文を読む スポンサード リンク
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