| 基于GIS的道路热区鉴别方法 |
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| 引用本文： | 卢佩莹,姚申君,吴健平,余柏蒗,钟海东.基于GIS的道路热区鉴别方法[J].交通运输工程学报,2011(4). |
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| 作者姓名： | 卢佩莹 姚申君 吴健平 余柏蒗 钟海东 |
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| 作者单位： | 香港大学地理系;华东师范大学地理信息科学教育部重点实验室; |
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| 基金项目： | 香港研究资助局GRF项目(HKU747207H) |
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| 摘 要： | 基于地理信息系统以及热区基本模型,研究了道路热区的鉴别方法。该方法对道路网依据一定优先权进行合并以获取道路基本单元,模拟了交通事故的空间分布,并采用Monte Carlo法定义各道路基本单元交通事故数阈值,通过检验道路基本单元的空间邻近性得到热区,并对上海世博园周边道路热区进行了鉴别。分析结果表明:道路网经合并后,不规则道路基本单元的百分比由41.5%下降到14.8%;世博园周边共有84个仅涉及车辆、33个涉及行人的热区,与实际相符。可见,该方法能有效鉴别道路危险区域。
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| 关 键 词： | 交通安全 道路危险区域 地理信息系统 热区 交通事故 |
Identification method of road hot zone based on GIS |
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| LOO B P Y,YAO Shen-jun,WU Jian-ping,YU Bai-lang,ZHONG Hai-dong.Identification method of road hot zone based on GIS[J].Journal of Traffic and Transportation Engineering,2011(4). |
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| Authors: | LOO B P Y YAO Shen-jun WU Jian-ping YU Bai-lang ZHONG Hai-dong |
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| Institution: | LOO B P Y1,YAO Shen-jun1,WU Jian-ping2,YU Bai-lang2,ZHONG Hai-dong2(1.Department of Geography,The University of Hong Kong,Hong Kong,China,2.Key Laboratory of Geographic Information Science of Ministry of Education,East China Normal University,Shanghai 200062,China) |
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| Abstract: | Based on GIS and the basic model of hot zone,the identification method of road hot zone was studied.Road networks were merged by following a priority sequence,and the basic spatial units(BSU) of road were obtained.The spatial distribution of traffic accidents was simulated,and the threshold value of traffic accident for each BSU was defined by using Monte Carlo method.The spatial contiguities of BSUs were examined to obtain hot zones,and the hot zones around Shanghai Expo Venue were identified.Analysis resu... |
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| Keywords: | traffic safety hazardous road location geographical information system hot zone road crash |
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