自改革开放以来,我国高速公路建设取得了突破性成就,我国的高速公路居世界第四位。但我们不能不看到,我们与日美等发达国家的差距,日本的人均道路占有面积是我们的35倍,美国是我们的41倍,特别是我国的高速公路建设起点较低,甚至还有一部分高速公路工程由于受资金的约束,导致设 Since the reform and opening up, China’s highway construction has made breakthrough achievements, and our country’s expressway ranks the fourth in the world. However, we can not but see the gap between Japan and the United States and other developed countries. Japan’s average per capita road area is 35 times that of ours and that of the United States is 41 times that of ours. In particular, the starting point for the construction of expressways in our country is relatively low and there are even As part of the highway project due to financial constraints, led set