基于部分传统路面性能指标的路面跳车预测方法

    Prediction Method of Pavement Bumping Based on Partial Traditional Pavement Performance

    • 摘要: 我国《公路技术状况评定标准》(JTG 5210—2018)中, 第一次将路面跳车作为路面性能评价对象纳入评价标准, 但经研究发现路面跳车与其他部分传统路面性能存在相关性。探究用部分传统路面性能指标, 包括国际平整度指数(international roughness index, IRI)、车辙深度、路面破损率和路面磨耗率4项指标综合识别路面跳车的方法。对北京市区域内6条高速公路的路面性能进行检测和评价, 利用随机森林机器学习模型对4类路面性能与路面跳车的关系进行建模, 对路面跳车路段进行预测。研究结果表明, IRI与路面跳车关联性最大, 车辙深度次之, 破损率和磨耗率对路面跳车的影响较小。经过交叉验证以及对模型调优后, 路面跳车预测模型准确率可以达到99.475%, 满足实际工程应用需要。该研究为路面跳车指标的快速识别和检测提供了新思路, 可以为路面跳车的识别提供一种低成本、低资源消耗的检测方法。

       

      Abstract: The pavement bumping was first involved in the specification "Highway Technical Condition Evaluation Standard" (JTG H20—2018) of China. However, existed research shows that the pavement bumping is also correlated with other pavement performance. This paper studied the prediction method of pavement bumping based on partial traditional pavement performances including international roughness index (IRI), rut depth (RD), pavement damage rate (DR) and pavement wear rate (WR). The pavement performance of six expressways located in Beijing was detected and evaluated, and a relationship model was built between pavement bumping and four types of pavement performance using random forest machine learning model for predicting pavement bumping sections. Results show that IRI has the greatest correlation with pavement bumping, followed by RD, and the impact of DR and WR on pavement bumping is relatively small. After cross validation and model optimization, the prediction accuracy of the pavement bumping can reach up to 99.475%, which meets the needs of practical engineering applications. This study provides a new idea for the rapid identification and detection of pavement bumping, and provides a low-cost and low resource consumption detection method of pavement bumping.

       

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