摘要
道路交通事故具有空间分布规律,不同地区有所差异。在选取道路交通事故统计指标的基础上,基于系统聚类分析的基本原理,采用Ward最小方差平方和法对某地区道路交通安全状况进行聚类分析。通过分类,将具有共性的地区划归为一类。结果表明,类别的划分突出特性,反映道路交通事故具有空间分布特征,有助于掌握道路交通安全状况,便于采取相应的防治措施。
The spatial distribution is one feature of road traffic accidents. First, the statistics indexes of road traffic accidents were selected. And then based on the fundamental theory of hierarchical clustering analysis, the condition of road traffic safety was analyzed by the Ward method. The similar areas with the same characters were grouped. Such division can show that different clusters have their own characters and the spatial distribution features of road traffic accidents. It is helpful to master road traffic safety condition and take corresponding measures by analyzing traffic accidents.
出处
《黑龙江工程学院学报》
CAS
2009年第3期4-6,共3页
Journal of Heilongjiang Institute of Technology
关键词
道路交通事故
多元统计
聚类分析
Ward法
road traffic accident
multivariate statistics
cluster analysis
Ward method
