异质交通流环境下无信号T形交叉口控制策略  

Control strategy of unsignalized T-intersection in heterogeneous traffic flow environment

作　　者：吕悦晶[1,2] 吴耀 张萌萌 张宏[4] 张志伟[2] LYU Yuejing;WU Yao;ZHANG Mengmeng;ZHANG Hong;ZHANG Zhiwei(School of Automotive and Traffic Engineering,Wuhan University of Science and Technology,Wuhan,Hubei 430065,China;Qinghai Provincial Highway Bureau,Xining,Qinghai 810001,China;School of Transportation and Logistics Engineering,Shandong Jiaotong University,Jinan,Shandong 250357,China;School of Transportation,Inner Mongolia University,Huhhot,Inner Mongolia 010070,China)

机构地区：[1]武汉科技大学汽车与交通工程学院,湖北武汉430065 [2]青海省公路局,青海西宁810001 [3]山东交通学院交通与物流工程学院,山东济南250357 [4]内蒙古大学交通学院,内蒙古呼和浩特010070

出　　处：《江苏大学学报（自然科学版）》2024年第4期387-395,共9页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(ZR2017MF011);青海省重点研发与转化计划项目(2021-QY-207);内蒙古自治区自然科学基金资助项目(2019MS07021)。

摘　　要：针对无信号控制T形交叉口,提出一种异质交通流环境下交叉口的分级限速控制模型.根据异质交通流的车辆运行特性提出分级限速的概念,并建立交叉口的车辆信息矩阵.构建以车流通过冲突区域时间最短为优化目标,以保证冲突车辆安全行驶的时间间隔为约束条件的线性规划模型.通过MATLAB搭建仿真平台对所提出的模型有效性进行试验验证.结果表明:在混合行驶的交通环境下,当车辆到达率为0.30~0.50时,本研究所提模型可以在传统控制模型的基础上提升交叉口通行能力约20%;分级限速控制模型下智能网联车辆渗透率达到0.90时,最多可以增加交叉口约17%的通行能力;所提模型能有效提高道路资源利用效率,保证主路运行通畅的情况下大幅降低支路车辆延误.For the T-type intersections without signal control,a hierarchical speed limit control model of intersections in heterogeneous traffic flow environment was proposed.According to the vehicle characteristics of heterogeneous traffic flow,the concept of graded speed limit was introduced,and the vehicle information matrix of intersections was established.A linear programming model was constructed with the shortest time of traffic passing through the conflict area as optimization objective and the time interval for ensuring the safe driving of conflict vehicles as constraint condition.The proposed model was verified by the experiments on the simulation platform built by MATLAB.The results show that in the mixed traffic environment,when the vehicle arrival rate is 0.30-0.50,the proposed model can increase the intersection capacity by about 20%on the basis of the traditional control model.When the penetration rate of intelligent connected vehicles reaches 0.90,the traffic capacity of the intersection can be increased by about 17%.The proposed model can effectively improve the utilization efficiency of road resources and greatly reduce the delay of branch vehicles with ensuring the smooth operation of the main road.

关 键 词：智能交通 控制策略 线性规划 异质交通流 智能网联车辆 

分 类 号：U491.2[交通运输工程—交通运输规划与管理]