一般道路由于交通运输量的增加,尤其是重型运输车辆的增加,随着道路使用年限的增长,路面将会出现变形、裂缝、磨损等不同程度的破坏.在这种情况下,如何定量地确定道路是否需要翻修,目前尚缺乏深入的研究.本文介绍日本最近采用的维修指数计算方法,可供参考.现简介绍如下.维修指数 PSI 用下式计算 General Road Due to the increase of traffic volume, especially the increase of heavy-duty transport vehicles, with the increase of the service life of the road, the road surface will have varying degrees of damage such as deformation, cracks and abrasion etc. Under such circumstances, how to quantitatively determine The road is in need of renovation, there is still no thorough research.This paper introduces Japan recently adopted maintenance index calculation method, for reference.Improvement is as follows.Service index PSI is calculated using the following formula