论文部分内容阅读
国道,就是国家干线公路的简称,是在国家公路网中,具有全国性政治、经济意义,并经确定为国家干线的公路。我国现有国道70条,总长10.6万多公里。以国道为骨架,辅以地方干线公路(省道)和普通公路,形成了全国公路网。目前,这70条国道根据其地理走向分为三类。第一类是以首都北京为中心,作扇面辐射的公路,共12条,约1.4万公里;第二类是中国版图之内南北走向的公路,共28条,约3.9万多公里;第三类是东西走向的公路,共30条,约5.3
The national highway is the abbreviation of the national trunk highway and it is a highway which has the national political and economic significance in the national highway network and has been identified as the national trunk road. China’s existing State Road 70, with a total length of more than 106,000 kilometers. The national road as a skeleton, supplemented by the local trunk highway (provincial highway) and the general highway, formed a national road network. At present, these 70 national roads are divided into three categories according to their geographical orientation. The first category is based on the capital Beijing as the center, radiating fan-shaped roads, a total of 12, about 14,000 km; the second category is within the territory of China north-south road, a total of 28, about 39,000 km; third Class is the east-west road, a total of 30, about 5.3