交通运输研究2025，Vol.11Issue(3)：12-22,11.DOI:10.16503/j.cnki.2095-9931.2025.03.002
智能网联环境下无信控交叉口自动控制模型
Autonomous Control Model for Unsignalized Intersections in Intelligent Connected Environment
摘要
Abstract
In the intelligent connected environment,to enhance the safety,efficiency and comfort of vehi-cles passing through uncontrolled intersections,a conflict resolution model for intelligent connected vehi-cles at unsignalized intersections was proposed to achieve the global optimization of vehicle passage tim-ing at intersections.Firstly,based on the time of entering and leaving the control zone,the safe time inter-vals for vehicles to reach each conflict zone were derived,and virtual fleets were constructed for vehicles with potential conflicts and conflict constraints were established.Then,the minimum travel time of ve-hicles was derived based on the maximum speed and acceleration,and a nonlinear timing optimization model for conflict resolution was constructed with the objective of minimizing the total vehicle delay.Regarding the problem of sudden acceleration and deceleration of vehicles,based on the results of the timing optimization model,the initial and terminal state of the vehicle in the control area were taken as the initial data,and the optimal control theory was used to optimize the trajectory.Finally,the SUMO was redeveloped through the Traci interface to establish a simulation scenario and verify the proposed model through simulation.The results show that the proposed model has better optimization effects than the"first come,first served"control method under different traffic volumes.The average travel time and average loss time of vehicles are reduced by 44.67%and 78.33%respectively.Under the con-trol of the trajectory optimization method,the acceleration interference value is reduced by 55.5%,which enables vehicles to smoothly complete the acceleration and deceleration process under the con-trol of the conflict resolution model,effectively improving the intersection passage efficiency and driv-ing comfort.关键词
交通管理/智能网联/冲突消解/轨迹优化/最优控制/SUMO微观仿真Key words
traffic management/intelligent connected/conflict resolution/trajectory optimization/optimal control/SUMO microscopic simulation分类
交通工程引用本文复制引用
柳祖鹏,张槐玲,何雅琴..智能网联环境下无信控交叉口自动控制模型[J].交通运输研究,2025,11(3):12-22,11.基金项目
国家自然科学基金项目(52472329) （52472329）
