改进的聚类法在事故多发点成因分析中的应用

Improved Clustering Analysis Method Application in Genetic Analysis of Accident Black Point

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,为日益严峻的交通安全问题研究做出一定的探索。

Genetic analyzes of road traffic accident black point is the important content of road traffic safety management , based on the system arangement of the influencing factors for the traffic acci-dent ,the improved nuclear density clustering analysis method was put forward , namsity clustering method based on optimal bandwidth ＂ to analyze the root cauAt the same time , in practice applying this optimal method to a certain part of the city traffic accident da-ta analysis , produced a series of clustering layers about influence factors of traffic accthen each layer superimposed analysis,finally got two major influence factors. Results shoposed nuclear density clustering technology based on optimal bandwidth can effeof road accident black point , for the study of the increasingly serious traffic safety problem make some ex-ploration.