Influencing factors and heterogeneity analysis of highway traffic accidents
In this paper,we analyze the influencing factors of highway traffic accidents from four aspects:road alignment conditions,traffic operation status,weather environment conditions and aggressive driving behavior,using a random parameter logit model and focusing on the unobserved data heterogeneity.The results showed that plane alignment,longitudinal alignment,congestion index,speed coefficient of variation,weather conditions,wind level,frequency of aggressive acceleration behavior and frequency of aggressive deceleration behavior all had significant effects on freeway traffic accidents;meanwhile,unobserved heterogeneity was found in the four variables of longitudinal alignment,congestion index,frequency of aggressive acceleration behavior and frequency of aggressive deceleration behavior,and the frequency of aggressive deceleration behavior and congestion index,frequency of aggressive There were interactions between the frequency of rapid acceleration behavior and the frequency of rapid deceleration behavior.The paper provides a scientific and reasonable explanation for the causes of highway traffic accidents and provides theoretical support for the scientific management of highway accidents.
transportation planning and managementfreewaysafety analysisinfluencing factordriving behaviorunobserved heterogeneity
NETL
NSTL
万方数据
