The correlation between the standard classified road power spectral density (PSD) and international roughness index (IRI) was discussed by using regressive analysis.
通过回归分析的方法对标准分级道路功率谱密度与相应国际平整度指数之间的关系进行了研究。
The road roughness is an important index evaluating pavement performance.
路面平整度是评价路面使用性能最主要的一项指标。
Road roughness is an important index in pavement performance evaluation, and it relates to three factors such as pavement, cars and persons, especially human body comfort.
平整度在路面使用性能评价中占有重要地位，它涉及到路面、车辆和人体三方面因素，特别是人体舒适性是其中重要的环节。
Road roughness is an important index in pavement performance evaluation, and it relates to three factors such as pavement, cars and persons, especially human body comfort.
平整度在路面使用性能评价中占有重要地位，它涉及到路面、车辆和人体三方面因素，特别是人体舒适性是其中重要的环节。
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