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Kernel Density Estimation Based Method for Hazardous Road Segments Identification

机译:基于核密度估计的危险路段识别方法

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The identification of hazardous segments is always the first step of a safety improvement program. However, the existing hazardous identification methods, such as the Crash Frequency method and the Empirical Bayes method, have a shortcoming in common: the process of road segmentation. The primary objective of this paper is to propose a new hazardous identification method based on the Kernel Density Estimation, in which the process of road segmentation is avoided and crash data is used in a new way. Crash data is collected on rural highways in Yangjiang in Guangdong and simulated data is generated from the crash data. The new method is compared with two commonly used hazardous segments identification methods using the simulated crash data. Quantitative evaluation tests proposed by prior researchers are used in the study of comparisons. There are two benefits of the new method: increasing the identification consistency and reducing false identification.
机译:识别危险段始终是安全改进计划的第一步。但是,现有的危险识别方法(例如“碰撞频率”方法和“经验贝叶斯”方法)有一个共同的缺点:道路分割的过程。本文的主要目的是提出一种基于核密度估计的新的危险识别方法,该方法避免了道路分割的过程,并以新的方式使用了碰撞数据。在广东阳江的农村公路上收集碰撞数据,并从碰撞数据中生成模拟数据。使用模拟的碰撞数据,将该新方法与两种常用的危险段识别方法进行了比较。比较研究中使用了先前研究人员提出的定量评估测试。该新方法有两个好处:提高标识一致性并减少错误标识。

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