论文部分内容阅读
贵州省位于云贵高原东坡,面积约17.6万平方公里。全省地貌可分为高原、山地、丘陵和盆地四种基本类型,其中92.5%的面积为山地和丘陵,是全国唯一没有平原支撑的省份。贵州省气候不稳定,灾害性天气种类较多,干旱、秋风、凌冻、冰雹等频度大。自然地理条件对道路交通的通行能力和安全影响非常大。道路交通发展现状道路交通基础设施近年来,贵州省公路基础设施建设实现跨越式发展,2011年全省公路网总里程达到
Guizhou Province is located in the east slope of Yunnan-Guizhou Plateau, an area of about 176,000 square kilometers. The province’s landscape can be divided into four basic types of plateaus, mountains, hills and basins, of which 92.5% of the area is mountains and hills, is the only province without plain support. Guizhou Province is characterized by unstable climate, more types of disastrous weather, frequent droughts, autumn winds, Ling-freeze and hail. The physical and geographical conditions have a great impact on the capacity and safety of road traffic. Road Traffic Development Status Road Traffic Infrastructure In recent years, the highway infrastructure construction in Guizhou Province has achieved leapfrog development. In 2011, the total mileage of highway network in the province reached