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西部地区所处地理位置偏远,加之区内地域辽阔,其对外联系及区内各地之间的联系距离都很长,修路里程和运费要高出内地若干倍,交通建设和运营条件十分不利。而且西部地区的地貌地形复杂,气候条件恶劣。云贵川山区地势险峻、谷深河多、泥石流频繁,青藏高原及内陆荒漠、冻土、戈壁、沙漠纵横,交通设施建设难度很大。因此,在西部地区建设与内地同样标准和长度的运输线、同等合理布局的交通运输网络,就要凭添更多的建筑工程量和投资,还要增加护养工作量与消耗。不仅如此,由于经济
The geographic location of the western region is remote and the region has a vast territory. Its external links and the links between various places in the region are very long. The mileage and freight rates of roads are several times higher than those in the Mainland. The traffic construction and operation conditions are very unfavorable. Moreover, the landform in the western region is complex and the weather conditions are harsh. Yunnan-Guizhou-Sichuan mountain steep terrain, more valleys, debris flow frequent, the Qinghai-Tibet Plateau and inland desert, frozen soil, desert, desert aspect, traffic facilities construction is very difficult. Therefore, building a transportation network with the same standards and length as the Mainland in the western region and an equally reasonable transportation network will require more construction work and investment, and will also increase the workload and consumption of nursing care. Not only that, due to the economy