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基于信息分配的道路黑点鉴别方法

, PP. 122-126

Keywords: 交通工程,道路安全,信息分配技术,黑点鉴别,小样本,事故信息量,事故频次

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Abstract:

？为解决传统的道路黑点鉴别方法中存在的小样本问题及事故样本的信息损失问题,深入分析了事故数据的小样本特性及事故样本反映路段行车风险的多维性;并引入信息分配技术对交通事故数据进行处理,通过计算和比较事故样本分配给各路段单元的事故信息量(而不是事故频次)进行道路黑点鉴别。结果表明:信息分配技术能充分挖掘小样本事故数据提供的道路黑点鉴别信息,事故信息量比事故频次更能反映各路段单元行车风险的大小。

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