随着改革开放的进一步深入，人们的生活水平不断提高，公路交通工具日益先进，要求公路应该具备高速、舒适、安全、经济等要求，所以高速公路得意迅猛发展。同时随着高等级公路的迅速发展，对于路面平整度要求越来越高，路面平整度的合格率既反映了行车舒适程度，又反映了施工队伍的水平。在公路建设中，很多因素会影响到路面平整度，比如施工人员素质、路基施工质量、桥头涵洞两段及桥梁伸缩缝的处理、路面底基层及基层的施工、路面施工机械的选用及路面材料的质量等。由于在检测公路质量的指标中，一个很重要的指标就是平整度，它反映了道路的综合使用性能，提高公路的平整度，将达到舒适性和安全性的目的，并以此带来经济效益。因此提高公路的平整度很重要。

公路平整度的指标有国际平整度指数 (IRI)，三米直尺量测的最大间隙h，标准偏差σ。本文主要介绍的是关于采用连续式八轮平整度仪测量公路的平整度测量问题。

-With the opening and reform of further thorough, the people s living standards improved, the highway traffic tools more advanced, highway should have high speed, request comfortable, safe, economic and other requirements, so highway proud rapid development. At the same time as the rapid development of high grade highway, road surface flatness requirement for more and more high, road surface roughness of the qualified rate reflects both driving comfort levels, and they reflect the level of construction team. In highway construction, many factors can affect the road surface roughness, such as construction personnel quality, roadbed construction quality, the bridge culvert two paragraphs and bridge the expansion joint treatment, pavement subbase construction, and the road construction machinery choose and pavement materials quality, etc. Because the quality of highway in testing index, a very important index is flatness, it reflects the comprehensive use of the road performance, improve t