云南,地处祖国的西南边陲,是典型的高原山区省份,山区面积约占全省国土总面积的94％,物产资源丰富,民风淳朴,景致怡人,素有动物王国、植物王国之称,与老挝。缅甸、越南等国家接壤,互有往来。本具有很大的潜力,伹由于受交通的制约,使云南的经济发展长期停留在较低水平上,公路的建设发展也就从很大的程度上决定了云南的经济发展。 Yunnan, located in the southwestern border of the motherland, is a typical plateau mountain province. The mountainous area accounts for about 94% of the total area of ​​the province. With rich natural resources and simple folk scenery, it is known as an animal kingdom and a plant kingdom. With Laos. Myanmar, Vietnam and other countries bordering each other. This has great potential. Due to traffic constraints, the long-term economic development in Yunnan will remain at a relatively low level. Therefore, the development and construction of highways will determine the economic development of Yunnan to a large extent.