高速公路是国家的基础设施,是国民经济发展到一定阶段的必然产物,也是一个国家现代化水平的重要标志之一。我国的高速公路,经过20世纪70年代论证,80年代中期实现了零的突破。进入90年代后,高速公路建设快速发展,到2004年底,通车里程已达3.42万公里,仅次于美国,居世界第二位。2004 Expressway is the country’s infrastructure, is the inevitable product of the national economy to a certain stage, but also one of the important indicators of a country’s modernization level. China’s expressway, after the demonstration of the 1970s, achieved a zero breakthrough in the mid-1980s. After entering the 90’s, the rapid development of highway construction, by the end of 2004, the opening mileage has reached 34,200 km, second only to the United States, ranking second in the world. 2004