微观交通仿真参数校正下高速公路合流区交通运行状态研究  

Study on Traffic Operation Status in Freeway Merging Areas under the Parameters Correction of Microscopic Traffic Simulation

作　　者：尚永毅 何廷全 卢国华 张惠昕 罗薇 周晨静 SHANG Yongyi;HE Tingquan;LU Guohua;ZHANG Huixin;LUO Wei;ZHOU Chenjing(Guangxi Xinfazhan Commnications Group Co.,Ltd,Nanning 530029,China;Beijing University of Civil Engineering and Architecture Beijing Key Laboratory of General Aviation Technology,Beijing 100044,China;Guangzhou University,School of Civil Engineering and Transportation,Guangzhou 510006,China)

机构地区：[1]广西新发展交通集团有限公司,南宁530029 [2]北京建筑大学通用航空技术北京实验室,北京100044 [3]广州大学土木与交通工程学院,广州510006

出　　处：《交通工程》2024年第8期31-37,共7页Journal of Transportation Engineering

基　　金：广西壮族自治区交通运输厅科技示范工程(广西高速公路交通拥堵防治智能决策系统工程);广西重点研发计划(2021AB22078)。

摘　　要：合流区的车辆汇入主线时复杂的强制换道行为使其成为高峰期间高速路交通拥堵的常发瓶颈。为改善高速公路合流区交通运行状况,采用NGSIM数据集获取真实数据,通过遗传算法校正微观交通仿真参数。搭建仿真场景,设计仿真实验,研究了不同匝道设置条件下下高速公路合流区交通运行状态。研究结果表明加速区段长度、匝道输入流量对合流区交通运行状态影响显著。研究成果可为改善公路合流区交通安全、提升通行效率提供理论依据。The complex forced lane change behavior when merging into the main line makes the merging area a common bottleneck of freeway traffic congestion during peak hours.To improve the traffic operation in the merging area of freeways,this paper used the NGSIM dataset to obtain real data and corrected parameters of microscopic traffic simulation through genetic algorithm.Furthermore,a simulation scenario was constructed and simulation experiments were conducted.Then the traffic operation status in the freeway merging area was studied under different ramp settings.The research results indicate that the length of the acceleration section and the input flow of the ramp have a significant impact on the traffic operation status in the merging area.The research results can provide theoretical basis for improving traffic safety and enhancing traffic efficiency in freeway merging areas.

关 键 词：微观交通仿真 高速公路合流区 交通运行状态 速度 参数标定 

分 类 号：U491[交通运输工程—交通运输规划与管理]