混有自适应巡航控制汽车的交通流通行能力分析  

Capacity analysis of traffic flow mixed with adaptive cruise control vehicles

作　　者：秦严严 宋永朝[1] 何兆益[1] QIN Yanyan;SONG Yongchao;HE Zhaoyi(College 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）》2020年第5期115-121,共7页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(51278361);重庆市教委科学技术研究项目(KJQN201900730);重庆交通大学高层次人才科研启动项目(19JDKJC-C003)。

摘　　要：应用交通流基本图模型,研究不同自适应巡航控制(adaptive cruise control,ACC)汽车比例下混合交通流通行能力。针对现有ACC跟驰模型存在的不足,考虑车头间距-速度函数关系构建新的ACC跟驰模型,推导不同ACC比例下的混合交通流基本图模型,计算混合交通流的流量-密度解析曲线,分析ACC跟驰模型改进前后对混合交通流通行能力的影响作用,并针对性地进行参数敏感性分析。研究结果表明,改进后的ACC跟驰模型可克服原模型通行能力受限的缺陷,将常规驾驶交通流最大通行能力提升近2倍且不受道路最大限速值的影响。The fundamental diagram model of traffic flow was used to study the capacity of the mixed traffic flow with different adaptive cruise control(ACC)vehicle proportions.In view of the shortcomings of the existing ACC car-following model,a new ACC model was established by considering the spacing-speed function relation.Then the fundamental diagram model of the mixed traffic flow was derived to calculate the flow-density analytical curves of the mixed traffic flow.The impacts of the original and improved ACC car-following models on mixed flow capacity were analyzed and the sensitivity analysis of some parameters was conducted.The results show that the improved ACC model can resolve the defect of limited capacity in the original model and can nearly triple the capacity of the regular driving traffic flow without being affected by the maximum speed limit of the road.

关 键 词：交通工程 通行能力 基本图模型 自适应巡航控制 跟驰模型 

分 类 号：U491[交通运输工程—交通运输规划与管理]