人,要想活下去,一日三餐必不可少,要想健康地活下去,需要的东西就更多。换成市场经济的话说就是:要不断追加投资,实现可持续发展。公路,虽然不具有生物的特征,但是由于它和人们的生活息息相关,也就具有了一些“生命”的属性,要想让它为人们服务好,同样要保持完整、健康。如果说建设给了公路生命,那么养护就是延续其生命必不可少的手段,甚至可以说养护决定了公路生命的质量。上世纪90年代以来,我国公路建设的成就举世瞩目。特别是高速公路建设需要巨额投资,在国家没有足够财力的情况下,转让收费权、BOT等方式应运而生,特别是近几年,长三角等沿海发达地 People, in order to survive, three meals a day is essential, to survive healthy, need more. To replace the words of the market economy is: to continue to increase investment, to achieve sustainable development. Although the highway does not have biological characteristics, because it is closely related to people’s life, it also has some “life ” attributes. To make it serve the people well, it should also be kept intact and healthy. If construction is given to highway life, then conservation is an indispensable means of extending its life. It can even be said that maintenance has determined the quality of highway life. Since the 90s of last century, the achievements of China’s highway construction have attracted worldwide attention. In particular, the construction of expressways requires a huge investment. When the state does not have enough financial resources, the right to transfer fees and BOTs have come into being. Especially in recent years, the developed coastal areas such as the Yangtze River Delta