摘要
针对高速公路主线瓶颈区域交通拥挤严重、道路通行效率下降以及延误增加等问题,提出协调控制模型.分析高速公路主线瓶颈区域交通运行和交通拥挤特点,根据瓶颈区域上游主线路段和匝道的车辆排队长度参数构建拥挤程度指标.考虑瓶颈区域上游匝道和主线车辆通行权分配问题,构建以提高道路总体通行交通量和平均行程速度为最优控制目标的高速公路主线瓶颈区域的协调控制模型.采用3种控制方案对比分析的方法对协调控制模型的有效性进行验证.实验结果表明:所提出的协调控制模型能够有效提升道路的最大通行交通量;相对于无控制和主线控制方案,最大通行交通量分别提升5.04%和4.09%.
A new coordinated control model was proposed aiming to solve the problems of the heavy traffic congestion on the bottleneck of freeway,the increase of total delay and the decline of the traffic efficiency,etc.The congested degree indexes were formulated based on the analysis of main characters of the traffic operation and congestion in freeway mainline bottleneck zone.The foundation of congestion degree indexes was the queue length of the freeway bottleneck zone upstream mainline and ramp.The coordinated control model was proposed considering the priority for vehicles on the ramp and the mainline of bottleneck zone upstream.The coordinated control method aimed to improve the traffic volume and the average travel speed.The effectiveness of the coordinated control model was verified by the contrastive analysis of three control cases.Results show that the proposed coordinated control model can effectively improve the maximum traffic capability.Compared with the cases of no control and mainline control,the maximum traffic capability was enhanced by 5.04% and 4.09%,respectively.
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2015年第9期1700-1706,共7页
Journal of Zhejiang University：Engineering Science
基金
国家自然科学基金资助项目(51308248)
山东省省管企业科技创新项目(20122150251-5)
关键词
可变限速
交通流模型
交通管理
匝道控制
协调控制模型
variable speed limit
traffic flow model
traffic management
ramp metering
coordinated control model
作者简介
马明辉（1989-），女，博士生，从事高速公路智能交通控制的研究．ORCID：0000—000270804376．E—mail：maminghui1989@hotmail．com
通汛联系人：杨庆芳，女，教授．ORCID：0000—00017274—1121．Email：yangqf@jlu．edu．cn
