A Practical Traffic Assignment Model for Multimodal Transport System Considering Low-Mobility Groups
A Practical Traffic Assignment Model for Multimodal Transport System Considering Low-Mobility Groups
复制标题
DOI：
10.3390/math8030351
复制
发表时间：
2020-03
期刊：
影响因子：
2.4
通讯作者：
Tao Zhang;Yang Yang-Yang;Gang Cheng;Minjie Jin
中科院分区：
文献类型：
--
作者：
Tao Zhang;Yang Yang-Yang;Gang Cheng;Minjie Jin
本研究建立了考虑低流动性人群的多式联运系统交通分配模型，旨在为低流动性人群的交通网络设计提供依据。首先，利用logit函数描述步行、非车辆和私家车模式的路径选择均衡，将其表述为考虑不同低机动性群体的变分不等式问题。然后，结合交叉口通行时间、车道间交通障碍、私家车燃油收费等实际情况，设计广义出行成本函数。最后，采用逐次加权平均法对模型进行求解。以温岭市为例，对模型及其求解方法进行了验证。分析了交通成本相关调整参数的敏感性，探讨了模型的实用性，并对不同低机动性群体的交通分配结果进行了讨论。
In this study, we created a practical traffic assignment model for a multimodal transport system considering low-mobility groups with the aim of providing the foundation of transportation network design for low-mobility individuals. First, the route choice equilibrium for walking, non-vehicle, and private car modes is described using the logit function, which is formulated as a variational inequality problem considering different low-mobility groups. Then, the practicalities related to travel times at intersections, traffic barricades between different lanes, and fuel fees of private cars are integrated to design a generalized travel cost function. Last, the method of successive weight averages is used to solve the proposed model. The model and its solution are verified based on a real case study of the city of Wenling in China. The sensitivity of adjustment parameters related to travel costs are analyzed, the practicality of the proposed model is explored, and the results of traffic assignment for different low-mobility groups are discussed.