Heterogeneous traffic flow modeling with drivers’ timid and aggressive characteristics

作     者：翟聪 巫威眺 罗淞文 Cong Zhai;Weitiao Wu;Songwen Luo

作者机构：School of Civil Engineering and TransportationSouth China University of TechnologyGuangzhou 510641China School of Transportation and Civil Engineering and ArchitectureFoshan UniversityFoshan 528000China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2021年第30卷第10期

页      面：219-230页

核心收录：

学科分类：08[工学] 0714[理学-统计学（可授理学、经济学学位）] 082302[工学-交通信息工程及控制] 0701[理学-数学] 0823[工学-交通运输工程] 

基　　金：supported by the Regional Joint Fund for Foundation and Applied Research Fund of Guangdong Province,China(Grant No.2019A1515111200) Youth Innovation Talents Funds of Colleges and Universities in Guangdong Province,China(Grant No.2018KQNCX287) the Science and Technology Program of Guangzhou,China(Grant No.201904010202) the National Science Foundation of China(Grant No.72071079) the Science and Technology Program of Guangdong Province,China(Grant No.2020A1414010010). 

主　　题：heterogeneous car-following model driver characteristic penetration rate stability 

摘      要：The driver’s characteristics(e.g.,timid and aggressive)has been proven to greatly affect the traffic flow performance,whereas the underlying assumption in most of the existing studies is that all drivers are homogeneous.In the real traffic environment,the drivers are distinct due to a variety of factors such as personality characteristics.To better reflect the reality,we introduce the penetration rate to describe the degree of drivers’heterogeneity(i.e.,timid and aggressive),and proceed to propose a generalized heterogeneous car-following model with different driver’s characteristics.Through the linear stability analysis,the stability conditions of the proposed heterogeneous traffic flow model are obtained based on the perturbation method.The impacts of the penetration rate of drivers with low intensity,the average value and standard deviation of intensity parameters characterizing two types of drivers on the stability of traffic flow are analyzed by simulation.Results show that higher penetration of aggressive drivers contributes to traffic flow stability.The average value has a great impact on the stability of traffic flow,whereas the impact of the standard deviation is trivial.