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The Trans-Canada Highway (French: ''Route Transcanadienne'') is a transcontinental federal-provincial highway system that travels through all ten provinces of Canada between its Pacific Ocean and Atlantic Ocean coasts to the west and east respectively. It is, along with the Trans-Siberian Highway and Australia's Highway 1, one of the world's longest national highways, with the main route spanning . The system was approved by the Trans-Canada Highway Act of 1949,〔(Department of Justice Canada )—Trans-Canada Highway Act—R.S.C. 1970, c. T-12〕 with construction commencing in 1950.〔(Transport Canada )—The Trans-Canada Highway〕 The highway officially opened in 1962, and was completed in 1971. The highway system is recognizable by its distinctive white-on-green maple leaf route markers. Throughout much of Canada, there are at least two routes designated as part of the Trans-Canada Highway (TCH). For example, in the western provinces, both the main Trans-Canada route and the Yellowhead Highway are part of the Trans-Canada system. Although the TCH does not enter any of Canada's three northern territories, the Trans-Canada Highway forms part of Canada's overall National Highway System, providing connections to the Northwest Territories, Yukon and the international border where connections can be made to the United States.〔(【引用サイトリンク】 title=National Highway System )〕 In 2012, a series of free public electric vehicle charging stations were installed along the main route of the highway by a private company, Sun Country Highway, permitting electric vehicle travel across the entire length, as demonstrated by the company's president in a publicity trip in a Tesla Roadster. this made it the longest electric vehicle ready highway in the world.〔Caulfield, Jane. (2012-12-11) (Electrifying trip along the Trans-Canada Highway pit stops in Saskatchewan | Metro ). Metronews.ca. Retrieved on 2014-04-12.〕〔(World's Longest Greenest Highway Project - Sun Country Highway ). Suncountryhighway.ca. Retrieved on 2014-04-12.〕 ==Jurisdiction== Canada's national highway system is not primarily under federal jurisdiction, as decisions about highway and freeway construction are entirely under the jurisdiction of the individual provinces. In 2000 and 2001, the government of Jean Chrétien considered funding an infrastructure project to have the full Trans-Canada system converted to freeway. Although freeway construction funding was made available to some provinces for portions of the system, the government ultimately decided not to pursue a comprehensive highway conversion. Opposition to funding the freeway upgrade was due to low traffic levels on parts of the Trans-Canada. Other provinces preferred the money going towards improving vital trade routes which were often not inter-provincial. Plans for a freeway to bypass or eliminate traffic congestion and road hazards along the heavily travelled route from Victoria to Nanaimo on Vancouver Island were cancelled during the recession that followed the 1987 stock market crash. The cancellation was confirmed in 1995 by the federal government's "war on the deficit" and British Columbia's subsequent highway capital spending freeze. The latter was lifted from the Trans-Canada Highway development program on the BC mainland as renewed federal funding and new public-private partnerships became available in the early 2000s to support the 2010 Winter Olympics and the Pacific Gateway transportation initiative. However, the freeze was largely left in place for the Vancouver Island TCH which was becoming seen mostly as a commercial local service corridor isolated from the increasingly high-mobility highway networks on the Canadian mainland. There have also been discussions of upgrading the Trans-Labrador Highway (Quebec Route 389/Newfoundland and Labrador Route 500) to Trans-Canada Highway standards (fully paved, two lanes with shoulders, 90 km/h speed limit). Route numbering on the Trans-Canada Highway is also handled by the provinces. The Western provinces have coordinated their highway numbers so that the main Trans-Canada route is designated Highway 1 and the Yellowhead route is designated Highway 16 throughout; however, from the Manitoba–Ontario border eastwards, the highway numbers change at each provincial boundary, or even change ''within'' a province as the TCH piggybacks along separate provincial highways (which often continue as non-TCH routes outside the designated sections) en route. In addition, Ontario and Quebec use standard provincial highway shields to number the highway within their boundaries, but post numberless Trans-Canada Highway shields alongside them to identify it. As the Trans-Canada route was composed of sections from pre-existing provincial highways, it is unlikely that the Trans-Canada Highway will ever have a uniform designation across the whole country. 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「Trans-Canada Highway」の詳細全文を読む スポンサード リンク
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