摘要
道路交通事故空间分布特征可为交通安全管理提供参考。本文基于日照市2017—2018年的道路交通事故数据,通过地理编码将事故位置、事故类型等属性信息转化成空间矢量数据,利用GIS软件得出事故频度与事故严重程度空间密度图,经过可视化分析后选取特征明显区域以矢量统计分析,对事故致因进行深层次挖掘。密度分析的结果表明:日照市各区县的中心城区虽然单位长度道路上的事故频率高于郊区,但事故严重程度远低于郊区,其与郊区道路限速值高、相关设施不完善等因素有很大关系。
The spatial distribution characteristics of road traffic accidents can provide reference for traffic safety management.Based on the road traffic accident data of Rizhao City from 2017 to 2018,the attribute information such as accident location and accident type are transformed into spatial vector data through geocoding,and the spatial density map of accident frequency and accident severity is obtained by GIS software,After visual analysis,select the area with obvious characteristics for vector statistical analysis to deeply excavate the cause of the accident.The results of density analysis show that although the accident frequency per unit length of roads in the central urban areas of districts and counties in Rizhao City is higher than that in the suburbs,the accident severity is much lower than that in the suburbs,which is closely related to factors such as high speed limit of roads in the suburbs and imperfect relevant facilities.
作者
孟庆达
于龙
尹皓邈
侯丽波
MENG Qingda;YU Long;YIN Haomiao;HOU Libo(People’s Public Security University of China,Beijing 100038,China;Public Security Department of Liaoning,Shenyang Liaoning 110032,China;Liaoning Police College,Dalian Liaoning 116036,China)
出处
《信息与电脑》
2021年第20期50-53,共4页
Information & Computer
关键词
交通事故
密度分析
事故成因
traffic accident
density analysis
cause of accident
