智能网联环境下的无信号交叉口冲突消解方法研究

发布时间：2018-08-09 14:32

【摘要】：目前,以提高交通效率和车辆安全为目的的无信号交叉口车辆行为协作式控制成为智能网联汽车应用领域的研究重点。正是在此背景下,本文针对典型无信号交叉口通行控制方法开展研究,提出了一种基于冲突消解策略的车辆行为控制方法,并对其中的策略进行了分析验证,论文的主要工作如下:(1)分析了无信号交叉口智能网联车辆控制的应用需求,对智能网联车辆与交叉口车辆冲突消解方法进行了分析,提出了基于智能网联车辆无信号交叉口集中式车辆行为控制系统的系统架构。(2)以两车道十字型交叉口为研究对象,分析了不同行驶方向车辆冲突的特点,针对其中的交叉冲突与合流冲突,依据道路交通安全法,建立了无信号交叉口优先通行决策库。结合现有的冲突消解算法,在考虑乘客舒适性的基础上,提出了一种十字形无信号交叉口车辆冲突消解速度优化方法,该方法利用单个车辆的速度控制引导模型代替了虚拟信号灯方法与车辆交替通行的传统控制方法,使车辆尽量在不停车的状态下通过交叉口,从而提升通行效率与舒适性。。(3)搭建了基于Veins架构的无信号交叉口道路仿真平台,将SUMO交通仿真软件和OMNeT++车车/车路通信仿真结合,对多车协同的十字形两车道交叉口场景进行了仿真。仿真结果表明,本文提出的基于冲突消解策略的车辆行为集中式控制方法有效的消解了交叉口智能网联车辆的潜在冲突,提高了交叉口车辆通行能力和乘客舒适性。
[Abstract]:At present, the cooperative control of vehicle behavior at unsignalized intersections with the aim of improving traffic efficiency and vehicle safety has become the focus of research in the application field of intelligent network couplet vehicle. Under this background, this paper studies the traffic control method of typical unsignalized intersection, proposes a vehicle behavior control method based on conflict resolution strategy, and analyzes and verifies the strategy. The main work of this paper is as follows: (1) the application requirement of intelligent network connection vehicle control at unsignalized intersection is analyzed, and the conflict resolution method between intelligent network connection vehicle and intersection vehicle is analyzed. The system architecture of centralized vehicle behavior control system at unsignalized intersection is proposed. (2) the characteristics of vehicle conflict in different driving directions are analyzed by taking two-lane cross intersection as the research object. According to the road traffic safety method, the priority traffic decision base of unsignalized intersection is established for the cross conflict and confluence conflict. Based on the existing conflict resolution algorithms and considering the passenger comfort, an optimization method of vehicle conflict resolution speed at cross signalized intersections is proposed. In this method, the speed control and guidance model of a single vehicle is used to replace the traditional control method of the virtual signal light method and the alternate passage of the vehicle, so that the vehicle can pass through the intersection without stopping as much as possible. In order to improve the traffic efficiency and comfort. (3) the road simulation platform of unsignalized intersection based on Veins architecture is built. The SUMO traffic simulation software is combined with the OMNeT vehicle / vehicle road communication simulation. The scene of cross-lane intersection with multi-vehicle collaboration is simulated. The simulation results show that the proposed centralized vehicle behavior control method based on conflict resolution strategy can effectively eliminate the potential conflicts of intelligent intersections and improve the traffic capacity and passenger comfort of intersections.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U491.23

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