| 基于信息分配的道路黑点鉴别方法 |
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| 引用本文： | 廖志高,柳本民,郭忠印.基于信息分配的道路黑点鉴别方法[J].中国公路学报,2007,20(4):122-126. |
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| 作者姓名： | 廖志高 柳本民 郭忠印 |
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| 作者单位： | 同济大学,交通运输工程学院,上海,201804 |
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| 基金项目： | 国家西部交通建设科技项目;上海市科委资助项目 |
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| 摘 要： | 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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| 关 键 词： | 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 |
| 文章编号： | 1001-7372（2007）04-0122-05 |
| 收稿时间： | 2006-09-22 |
| 修稿时间： | 2006-09-22 |
Road Black Spot Identification Method Based on Information Assignment |
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| LIAO Zhi-gao,LIU Ben-min,GUO Zhong-yin.Road Black Spot Identification Method Based on Information Assignment[J].China Journal of Highway and Transport,2007,20(4):122-126. |
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| Authors: | LIAO Zhi-gao LIU Ben-min GUO Zhong-yin |
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| Institution: | School of Traffic and Transportation Engineering, Tongji University, Shanghai 201804, China |
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| Abstract: | In order to solve small sample problem and reduce information loss of accident samples in traditional road black spot identification methods,small sample characteristics of accident data and multidimensionality of road risk indicated by accident sample were deeply analyzed,then,information assignment technology was introduced to process traffic accident data.Road black spots were identified by comparison of accident information volume instead of accident frequency in each road section element. Results show that information assignment technology can make full use of road black spot identification information supported by accident data of small sample, and accident information volume has better reflection of ride risk in each road section element than that of accident frequency. |
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| Keywords: | traffic engineering road safety information assignment technology black spot identification small sample accident information volume accident frequency |
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