考虑城市住房分布的二维连续型动态交通分配模型及其污染物排放估计  

A 2D Continuous Dynamic Traffic Assignment Model and Traffic-Related Emission Estimation Considering Housing Distribution

作　　者：李晓洋 林志阳 吕瑜佩[1,3] 张鹏[1,4] LI Xiaoyang;LIN Zhiyang;LÜYupei;ZHANG Peng(Shanghai Institute of Applied Mathematics and Mechanics,School of Mechanics and Engineering Science,Shanghai University,Shanghai 200072,P.R.China;Department of Aeronautics and Astronautics,Fudan University,Shanghai 200433,P.R.China;School of Science,Huzhou University,Huzhou,Zhejiang 313000,P.R.China;Shanghai Key Laboratory of Mechanics in Energy Engineering,Shanghai 200072,P.R.China)

机构地区：[1]上海大学力学与工程科学学院上海市应用数学和力学研究所,上海200072 [2]复旦大学航空航天系,上海200433 [3]湖州师范学院理学院,浙江湖州313000 [4]上海市力学在能源工程中的应用重点实验室,上海200072

出　　处：《应用数学和力学》2020年第1期27-41,共15页Applied Mathematics and Mechanics

基　　金：国家自然科学基金(面上项目)(11672348;11972121;11272199);中国博士后科学基金(2019M661362);国家重点研发计划(2018YFB1600900);云南省交通运输厅科技创新项目(2019303);国家重点基础研究发展计划(973计划)(2012CB725404)~~

摘　　要：将城市交通路网抽象为二维连续的平面,提出一个考虑城市住房分布的二维连续型动态交通分配模型,并估计了城市交通污染物排放水平.该模型中,住房分布影响交通需求,出行者根据用户最优准则选择出发时间和路径,可以用于模拟城市交通运行的动态演化过程,得到密度、速度和流量等物理量.采用基于车辆速度和加速度的微观污染物排放模型VT-micro估计城市交通CO2动态排放水平.基于三角网格,采用有限体积法、投影算法和相继平均法进行数值求解,给出一个数值算例验证了模型和算法的有效性.A 2D continuous dynamic traffic assignment model considering housing distribution was proposed,and then the traffic-related emissions were estimated.In the model,the traffic demand is influenced by housing distribution,and travelers choose departure times and routes according to the dynamic user-optimal principle.The model can be used to describe the dynamic traffic and obtain the traffic density,velocity and flow.A speed and acceleration-based microscopic emission model VT-micro was applied to estimate the traffic-related CO2 emissions.The finite volume method,the projection method and the successive average method were constructed based on triangular meshes.A numerical example of a city with a single CBD was presented to demonstrate the effectiveness of the model and the numerical algorithm.

关 键 词：连续型动态交通分配 住房分布 出发时间选择 路径选择 污染物排放 

分 类 号：O35[理学—流体力学]