高速公路立体复合扩容设计的仿真模型研究  

Research on Simulation Model of Double-layer Expansion Design of Expressway

作　　者：丘建栋 唐易 暨育雄[1] 刘恒 罗钧韶 Qiu Jiandong;Tang Yi;Ji Yuxiong;Liu Heng;Luo Junshao(Key Laboratory of Road and Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 201804,China;Shenzhen Urban Transport Planning Center Co.,Ltd,Shenzhen 518057,China)

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海201804 [2]深圳市城市交通规划设计研究中心股份有限公司,广东深圳518057

出　　处：《系统仿真学报》2024年第5期1072-1080,共9页Journal of System Simulation

基　　金：国家重点研发计划(2022YFF0604900)。

摘　　要：针对传统交通仿真技术在高速公路立体复合扩容场景存在评估精度不足、应用效果甚微的问题,提出了一种面向高速公路立体复合扩容设计的仿真模型构建方法。选取深圳市机荷高速改扩建工程为研究对象,梳理路网设施、交通需求数据、驾驶行为模型参数等3大仿真模型建模要素,提出仿真建模的技术流程;对包含互通立交、收费站、上下匝道等重点基础设施的全路网进行仿真建模,基于交通量预测模型获取项目范围的出行OD矩阵,完成交通需求建模;引入驾驶模拟仿真技术,构建高速公路立体复合扩容的驾驶模拟场景,设计并开展驾驶模拟实验,采用K均值聚类算法将驾驶行为划分为激进、保守、正常3个类别,并分别分析驾驶行为特征,据此对仿真驾驶行为模型参数进行标定,提升仿真模型精度。仿真结果表明:该模型构建方法,可以有效标定期望速度、车头时距、临界间隙等参数,从而提升仿真模型分析精度。Aiming at the problems that the traditional traffic simulation technology has insufficient evaluation accuracy and little application effect in the three-dimensional composite expansion scenario of expressway,a simulation model construction method for double-layer expansion design of expressway was proposed.The reconstruction and expansion project of Shenzhen Jihe Expressway is selected as the research object,the three simulation model modeling elements,including road network facilities,traffic demand data,and driving behavior model parameters,are sorted out,and the technical process of simulation modeling is proposed.The whole road network including key infrastructure such as interchange,toll station,ramp up and down will be simulated and modeled,and the travel OD matrix within the project scope will be obtained based on the traffic volume prediction model to complete the traffic demand modeling.The driving simulation technology is introduced to build the driving simulation scene of the three-dimensional composite expansion of the expressway,design and carry out the driving simulation test.The K-means clustering algorithm is used to divide the driving behavior into three categories:radical,conservative and normal,and the characteristics of the driving behavior are analyzed respectively,according to which the parameters of the simulated driving behavior model are calibrated to improve the accuracy of the simulation model.The simulation results show that the proposed simulation model construction method can effectively calibrate parameters such as expected speed,headway and critical clearance,thus improving the analysis accuracy of the simulation model.

关 键 词：高速公路 立体复合扩容设计 仿真模型 VISSIM 驾驶模拟 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] U491[自动化与计算机技术—计算机科学与技术]