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作为世界第三极和中国第一大自然阶梯 ,青藏高原自然条件及其环境较差 ,高寒缺氧、位置偏远、地广人稀是其基本特征。高原的现代交通运输 (包括公路、铁路、航空和管道 4种运输方式 )开始建设和发展于 2 0世纪 5 0年代 ,目前运输网络已初步形成 ,但其规模和结构依然比较落后。进入 2 1世纪后 ,随着西部大开发战略的实施 ,中央和相关省市支持力度的提升和加强 ,高原的现代交通运输及其网络将会进一步加快发展 ,尤其是铁路和航空运输线路、设施的建设与其产业的发展
As the third largest pole in the world and the first major natural step in China, the natural conditions of the Qinghai-Tibet Plateau and its environment are poor, and the anoxia and hypoxia, remote locations and sparsely populated areas are its basic characteristics. The modern transportation of plateau (including 4 modes of transportation including road, rail, air and pipeline) started to be built and developed in the 1950s. At present, the transport network has been initially formed, but its scale and structure are still relatively backward. Since the entry into the 21st century, with the implementation of the strategy for the grand development of the western region and the promotion and strengthening of the support from the central and the related provinces and municipalities, modern transportation and its network in the plateau will be further accelerated. In particular, railways and air transport lines and facilities Construction and development of its industry