考虑网联辅助驾驶设备影响的混合交通流通行能力分析  

Capacity analysis of mixed traffic flow considering the influence of connected auxiliary driving equipment

作　　者：秦严严 唐鸿辉 李淑庆[1] 杨金滢 QIN Yanyan;TANG Honghui;LI Shuqing;YANG Jinying(School of Traffic and Transportation,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]重庆交通大学交通运输学院,重庆400074

出　　处：《山东科技大学学报（自然科学版）》2023年第3期120-128,共9页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：重庆市社会科学规划项目(2019B5074);重庆交通大学研究生科研创新项目(2021S0034)。

摘　　要：针对由传统人工车辆、安装网联辅助驾驶设备的人工车辆、协同自适应巡航控制(CACC)车辆以及由其跟驰人工车辆退化而来的自适应巡航控制(ACC)车辆构成的混合交通流,推导了数学解析表达,建立了混合交通流基本图模型,分析了不同网联车辆渗透率下,网联辅助驾驶设备安装率对混合交通流通行能力的影响,并对自适应巡航控制车辆期望车间时距进行参数敏感性分析。研究结果表明:当期望车间时距为2.2 s、网联车辆渗透率分别为0.1、0.2、0.3以及网联辅助驾驶设备安装率分别不低于0.4、0.3、0.2时,可有效改善混合交通流通行能力恶化现象,且当网联车辆渗透率不低于0.4、网联辅助驾驶设备安装率超过0.3时,最大通行能力提升大于5%;当期望车间时距为1.6 s、网联车辆渗透率分别取0.2、0.3、0.4、0.5,网联辅助驾驶设备安装率分别不低于0.6、0.5、0.4、0.3时,或期望车间时距为1.1 s、网联车辆渗透率分别为0.3、0.4、0.5,网联辅助驾驶设备安装率分别不低于0.8、0.6、0.5时,最大通行能力提升大于5%,此时提高网联辅助驾驶设备安装率有利于通行能力的快速提升。In view of the mixed traffic flow composed of regular vehicles,connected and regular vehicles,cooperative adaptive cruise control(CACC)vehicles,and adaptive cruise control(ACC)vehicles degraded by their following regular vehicles,an analytical expression was derived to describe its mathematical proportional relationship.Then,a basic graph model for mixed traffic flow was established to analyze the influence of the installation rate of connected auxiliary driving equipment on the traveling capacity of mixed traffic flow under different penetration rates of the connected vehicles.Finally,the parameter sensitivity analysis of the expected headway for adaptive cruise control vehicles was carried out.The results show that when expected headway is 2.2 s,the penetration rate of connected vehicles is 0.1,0.2 and 0.3 respectively,and the installation rate of connected driving assist equipment is not less than 0.4,0.3 and 0.2 respectively,the deterioration of mixed traffic flow capacity can be effectively improved.When the penetration rate of the connected vehicles is no less than 0.4 and the installation rate of the connected auxiliary driving equipment is more than 0.3,the improvement of maximum capacity is more than 5%.When the expected headway is 1.6 s,the penetration rate of the connected vehicles is 0.2,0.3,0.4,0.5,and the installation rate of the connected auxiliary driving equipment is no less than 0.6,0.5,0.4 and 0.3,or when the expected workshop time distance is 1.1 s,the penetration rate of connected vehicles is 0.3,0.4,0.5,the installation rate of connected driving assist equipment is no less than 0.8,0.6 and 0.5,the improvement of maximum capacity is higher than 5%,indicating that increasing the installation rate of connected auxiliary equipment on this basis is conducive to the rapid improvement of traffic capacity.

关 键 词：通行能力 混合交通流 网联辅助驾驶设备 安装率 敏感性分析 

分 类 号：U491[交通运输工程—交通运输规划与管理]