Skid resistance of pavements plays a significant role in roadway safety. Preventive maintenance (PM) treatments have been used to restore pavement condition and retard future deterioration. As aggregate is the main component of such treatments, this study assessed the skid resistance of pavements in Oklahoma following PM treatment application to evaluate whether skid resistance is maintained or improved and economics are optimized, and presents a methodology to assist pavement engineers manage skid resistance. The 13 commonly used sources of aggregates in Oklahoma were acquired for aggregate morphological characterization in the laboratory in relation to shape, angularity, and surface texture-related index properties, using the Aggregate Imaging System before and after Micro-Deval abrasion. Accordingly, a systematic experimental design was developed to include 45 field testing sites constructed with typical Oklahoma PM treatments and the common aggregate sources. Multiple rounds of field data collection were performed during a 3-year period using the most recent three-dimensional (3D) laser imaging technology for pavement surface characteristics and a Grip Tester for skid resistance. The impacts of aggregate properties and pavement surface characteristics on the skid resistance were investigated and used to develop statistical deterioration models. Subsequently, life cycle cost analysis and performance-based sensitivity analysis were conducted using the developed deterioration model. This study presents a detailed analysis of aggregate characteristics and its relationship to skid resistance of pavements. An understanding of these relationships and application of the presented methodology can result in improvements in pavement safety with enhanced stewardship of financial resources.

人行道的防滑性在道路安全中起着重要作用。预防性维护（PM）处理已用于恢复路面状况并阻止将来的恶化。由于骨料是此类处理的主要组成部分，因此本研究评估了应用PM处理后俄克拉荷马州路面的防滑性，以评估防滑性是否得以维持或得到改善以及经济性得到了优化，并提出了一种方法来协助路面工程师管理防滑性。在Micro-Deval磨蚀前后，使用骨料成像系统获取了俄克拉荷马州13种常用的骨料来源，用于在实验室中对形状，角度和与表面纹理相关的指数特性进行骨形态表征。因此，开发了系统的实验设计，包括45个使用俄克拉荷马州PM处理和常见骨料来源建造的现场测试站点。使用最新的三维（3D）激光成像技术（用于路面表面特性）和防滑测试仪（Grip Tester），在三年内进行了多轮现场数据收集。研究了骨料性能和路面特性对防滑性能的影响，并将其用于建立统计劣化模型。随后，使用开发的劣化模型进行了生命周期成本分析和基于性能的敏感性分析。这项研究对骨料特性及其与路面防滑性能的关系进行了详细分析。