国家行政学院经济学部张孝德博士等有关专家研究发现,市场化运作的公路投资管理体制,在解决我国交通供给严重短缺的同时,也使得我国宏观经济系统的运行付出了较大的代价。目前全世界建有收费公路的20多个国家,已建成的收费公路大约为14万公里,其中有10万公里在我国。我国高 According to some experts such as Dr. Zhang Xiaode, Department of Economics of National School of Administration, the highway investment management system marketed by the market has solved the serious shortage of traffic supply in our country and also paid a great price for the operation of China’s macroeconomic system. At present, there are over 20 countries in the world that have toll roads. There are about 140,000 toll roads built, of which 100,000 km are in our country. My country is high