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。
To improve the road safe performance and reduce the traffic accidents, the corresponding evaluation shall be made objectively first to the road safety.
要提高道路安全性能，减少交通事故的发生，首先应客观地对道路交通安全性能作出评价。
Specially, in performance evaluation module, road segment affects the precise of the result of evaluation and the method of building system. it is the base of the performance evaluation.
该体系由四个子模块组成：路面使用性能评价模块、路面使用性能预估模块、养护决策模块和公路地理信息系统等。
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