一、我国公路的现状和特点 建国以来我国公路建设有了较大的发展,公路通车里程达100万公里,是1949年的12倍,其中一、二级公路占1.6%,三级公路占12.4%,四级公路占45.7 %,等外公路占40. 3 %。然而,按国土面积计每平方公里公路里程仅0.10公里,而日本为2.99公里,西德为1.45公里,印 I. Present Situation and Characteristics of Highway in our Country Since the founding of our country, there has been a great development of highway construction in our country. The mileage of highway opened to one million kilometers is 12 times that of 1949, of which the first and second grade roads account for 1.6% and the third grade highway account for 12.4% %, Four highways accounted for 45.7%, other roads accounted for 40.3%. However, the mileage per km2 is only 0.10 km by land area, compared with 2.99 km in Japan and 1.45 km in West Germany