| In the process of highway maintenance,it is found that the lack of skid resistance often leads to hidden dangers of driving safety.At the same time,most of the bad anti-skid sections are relatively long,but other performances are relatively good,and the general evaluation of road technical conditions is still acceptable,which reflects from the side that the current road condition evaluation system does not have a strong pertinence in terms of the evaluation of pavement anti-skid performance and the determination of maintenance countermeasures.In this paper,through the analysis of the attenuation performance of different anti-sliding surface and the study of the factors affecting the anti-sliding poor section,the key factors affecting the anti-sliding ability are analyzed.From the point of view of pavement anti-skid performance index and accident rate in rainy days,the multi-index anti-skid evaluation method is studied to determine the anti-skid bad sections which are prone to traffic accidents,and the anti-skid surface is maintained according to its advantages and disadvantages.It is hoped that this method can provide reference for the anti-skid targeted maintenance of expressways in China. |