混有CACC车辆和ACC车辆的异质交通流基本图模型

发布时间：2018-01-14 02:27

本文关键词：混有CACC车辆和ACC车辆的异质交通流基本图模型　出处：《中国公路学报》2017年10期 　论文类型：期刊论文

【摘要】：针对协同自适应巡航控制(CACC)车辆市场普及过程中存在的CACC车辆、自适应巡航控制(ACC)车辆与人工驾驶汽车混合行驶的异质交通流,应用智能驾驶模型(IDM)和由加州大学伯克利分校PATH实验室实车验证的ACC模型、CACC模型分别作为人工车辆、ACC车辆和CACC车辆的跟驰模型,建立能够反映异质交通流中3种车型相互关系的解析表达。基于此,推导不同CACC车辆渗漏率p下的异质交通流基本图模型,并针对异质交通流基本图散点分布与基本路段通行能力,设计数值仿真试验。最后,针对ACC车辆和CACC车辆的期望车间时距进行参数敏感性分析。研究结果表明:建立的异质交通流解析表达与随机性仿真试验的误差小于1.5%,异质交通流基本图解析可取代基本路段通行能力的仿真试验,用于分析不同p时的异质交通流通行能力;ACC期望车间时距ta取值1.1 s时,交通流通行能力随着p的增加逐渐提升;当t_a=1.6 s,p低于30%时,异质交通流通行能力与传统人工车辆通行能力基本相当;当t_a=2.2 s,p低于40%时,异质交通流通行能力低于人工车辆通行能力;同时,CACC车辆期望车间时距tc越小,异质交通流通行能力越大;建立的异质交通流解析表达可为异质交通流其他特性的解析研究提供思路,异质交通流基本图解析结果,从通行能力的角度为ACC,CACC上层控制器设计提供期望车间时距取值的参考。
[Abstract]:For the collaborative adaptive cruise control (CACC) CACC vehicle vehicle market penetration in the process of adaptive cruise control (ACC) vehicle and manned transportation of mixed traffic flow heterogeneity, application of intelligent driver model (IDM) and PATH by the University of California at Berkeley Laboratory of real vehicle validation of ACC model, CACC model were used as artificial vehicles. ACC vehicle and CACC vehicle following model establishment, analysis can reflect the heterogeneous traffic flow in the relationship between the 3 types of expression. Based on this, the basic graph model of heterogeneous traffic flow under the P are different CACC vehicle leakage rate, and for the heterogeneous traffic flow chart, the basic distribution and basic link capacity, numerical simulation and design test. Finally, according to the ACC vehicle and CACC vehicle expectation headway parameter sensitivity analysis. The results show that the analytical expression of heterogeneous traffic flow and stochastic simulation The true test error is less than 1.5%, heterogeneous trafficflowfundamentaldiagram analytical simulation experiment to replace the basic link capacity, for the analysis of different P heterogeneous traffic flow capacity; ACC expected headway value of TA 1.1 s, the traffic flow capacity with the increase of P gradually increase; when t_a=1.6 s, less than P 30%, the heterogeneous traffic flow capacity and traffic capacity of traditional artificial equivalent; when t_a=2.2 s, P is lower than 40%, the heterogeneous traffic flow capacity is lower than the capacity of artificial vehicles; at the same time, the CACC vehicle expected headway TC is small, heterogeneous traffic flow capacity is established; the heterogeneous traffic flow analysis analytical expression for Research on the heterogeneous traffic flow characteristic of other ideas, heterogeneous trafficflowfundamentaldiagram analytical results, from the angle of ACC capacity, the value of the reference distance CACC design workshop provides a desired upper controller.

【作者单位】：东南大学交通学院;东南大学城市智能交通江苏省重点实验室;东南大学现代城市交通技术江苏高校协同创新中心;桂林电子科技大学建筑与交通工程学院;华蓝设计(集团)有限公司;
【基金】：国家自然科学基金项目(51478113,51508122) 广西科技攻关计划项目(桂科攻15248002-10) 江苏省研究生科研与实践创新计划项目(KYCX17_0146)
【分类号】：U491.112
【正文快照】： 江苏省研究生科研与实践创新计划项目(KYCX17_0146)Fundamental Diagram Model of Heterogeneous Traffic Flow Mixedwith Cooperative Adaptive Cruise Control Vehicles andAdaptive Cruise Control VehiclesQIN Yan-yan1,2,3,WANG Hao1,2,3,WANG Wei1,2,3,WAN Qian4,5(1.Sc

【相似文献】