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National routes (South Africa)
National routes in South Africa are a class of roads and freeways which connect major cities. They form the highest category in the South African route numbering scheme, and are designated with route numbers beginning with "N", from N1 to N18. Most segments of the national route network are maintained by the South African National Roads Agency (SANRAL), but some are maintained by provincial or local road authorities.
The system was mostly built during the 1970s by the National Party government of South Africa, although construction of new roads and repairs of existing stretches continue today. The system was modeled on the United States Interstate Highway network, an idea first brought into effect by US President Dwight D. Eisenhower during the 1950s, based on the German Autobahn, which he experienced when touring Germany after the Second World War.
==Definition==
National routes are defined and numbered by the Route Numbering and Road Traffic Signs Sub Committee within the Roads Co-ordinating Body, an organisation which contains representatives from road authorities in national, provincial and local government. The term "national road" is frequently used to refer to a national route, but technically a "national road" is any road maintaned by the South African National Roads Agency (SANRAL) and need not necessarily form part of a national route. There are also parts of the national route network that are maintained by provincial or local authorities rather than SANRAL.〔(nra.co.za - Declaration )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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