A survey of road roughness study

It was reviewed that the progresses of road roughness study in field of automobile engineering and transportation engineering in recent years. Based on different investigation contents,three aspects were discussed. First of all,the basic theory including the definition of road roughness and the mathematical model of road roughness in the form of power spectrum was reviewed;secondly,the experiment analysis including the development of instruments of measurement and the progresses of test and simulation in road roughness was reviewed;thirdly,the application of road roughness in engineering of automobile engineering and transportation engineering was discussed. The principle,characteristics and application in engineering of many kinds of road roughness in field of automobile engineering and transportation engineering were discussed synthetically. In addition,the roughness data of the Chinese representative road were mentioned,which were used to study and design automobiles in China. In the end,the prospects of road roughness study were summarized.