基于Logistic的不同车型碰撞行人事故严重程度致因分析

为定量分析不同车型碰撞行人事故严重程度影响因素,以美国北卡罗来纳州2007-2016年人车碰撞事故数据为样本,将其分为小轿车、SUV、货车碰撞行人事故3类,以事故严重程度为因变量,交通参与者属性、道路、环境条件和事故特征为候选自变量,分别建立累计logistic模型进行对比分析,探究人、车、路和环境因素对人车碰撞事故严...

Causes analysis on severity of pedestrian collision accidents with different vehicle types based on Logistic

In order to analyze the factors affecting the severity of pedestrian collision accidents with different vehicle types quantitatively,taking the human-vehicle collision accidents data in North Carolina of USA from 2007 to 2016 as the samples,the accidents were divided into three types,including the pedestrian collision accidents with cars,SUVs,and trucks.Taking the severity of the accident as the dependent variable,and the attributes of traffic participants,road,environmental conditions and accident characteristics as the candidate independent variables,the cumulative logistic models were established respectively to carry out the comparative analysis,and the influence of human,vehicle,road and environmental factors on the severity of human-vehicle collision accident was explored.The results showed that the model fitted well through various tests,and the prediction accuracy indexes of three models were all greater than 0.7.There were similarities and differences among the factors affecting the severity of pedestrian collision accidents with different vehicle types.The research results can provide reference for reducing the severity of human-vehicle collision accidents.