改进的聚类法在事故多发点成因分析中的应用

摘要

Genetic analyzes of road traffic accident black point is the important content of road traffic safety management,based on the system arrangement of the influencing factors for the traffic accident,the improved nuclear density clustering analysis method was put forward,namely to " nuclear density clustering method based on optimal bandwidth " to analyze the root cause of the accident black point.At the same time,in practice applying this optimal method to a certain part of the city traffic accident data analysis,produced a series of clustering layers about influence factors of traffic accident black point,then each layer superimposed analysis,finally got two major influence factors.Results show that the proposed nuclear density clustering technology based on optimal bandwidth can effectively analyze the causes of road accident black point,for the study of the increasingly serious traffic safety problem make some exploration.%道路交通事故多发点的成因分析是道路交通安全管理工作的重要内容,在对交通事故影响因素系统整理的基础上,提出了优化改进的核密度聚类分析方法,即采取“优化窗宽的核密度聚类方法”进行道路交通事故多发点成因的分析.同时,实践性地将该方法应用于某城市的部分交通事故数据分析,产生了有关交通事故多发点各影响因素的聚类图层,进而将各图层进行叠置分析,最终得到两大主要的综合性影响因素.结果表明,提出的优化窗宽的核密度聚类分析技术可以有效地对道路事故多发点成因进行分析,为日益严竣的交通安全问题研究做出一定的探索.