基于最小安全距离的车辆交叉换道模型研究  

Research on cross lane-changing model of vehicle based on minimum safety spacing

作　　者：李娟[1] 曲大义[1] 万孟飞 曹俊业[1] 刘聪[1] 

机构地区：[1]青岛理工大学汽车与交通学院,青岛266520

出　　处：《青岛理工大学学报》2017年第1期106-112,共7页Journal of Qingdao University of Technology

基　　金：国家自然科学基金资助项目(51178231);山东省安全生产科技发展计划项目(A2015-07)

摘　　要：为提高道路通行能力,减少交通事故发生率,在常规换道基础上提出新的换道形式,即为交叉换道;基于车路协同技术,建立数学模型研究交叉换道最小安全距离,确定最小安全距离公式,并考虑通信延迟因素修正最小安全距离;对模型进行仿真分析,在此基础上界定安全区域和非安全区域.仿真结果表明在车辆换道过程中,最小安全换道距离与换道车辆的加速度、换道时间和换道车辆与周围车辆间的相对速度等有关.In order to improve the road capacity, reduce traffic accident rate, a new lan^changing style named cross lane-changing is put forward on the basis of conventional lane changing in the pa-per. Based on cooperative vehicle infrastructure, mathematical model is established to study the minimum safe distance of crossing lane changing , determine the minimum safe distance formula. To the communication delay factor, the minimum safe distance is revised. Simulation and analysis are then performed to define safety and non safety areas. The simulation results show that the minimum safe lane-changing distance is related to lanechanging vehicle acceleration,lane changing time and the relative velocity between vehicles.

关 键 词：交通工程 交叉换道 最小安全距离模型 车路协同 通信延迟 

分 类 号：U491[交通运输工程—交通运输规划与管理]