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不同的年代、不同的公路建设时期,设计指导思想不同。随着社会的进步、经济的增长,设计理念亦不断发展。当前,我国正处在发达国家所经历的公路大规模建设时期,只用了10余年的时间就走过了发达国家要30年～40年才走完的路,这为世人瞩目。在公路建设还处于量的急剧增长阶段,如何吸取国外50余年建设与使用高速
Different years, different road construction period, the design guidelines are different. With the social progress, economic growth, design concepts are also constantly developing. At present, our country is in the stage of large-scale highway construction experienced by developed countries. It took more than 10 years to go through the road that developed countries took 30 to 40 years to finish. This is the world’s attention. In highway construction is still in the stage of rapid growth, how to learn more than 50 years of foreign construction and use of high-speed