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Model formulation and calibration procedure for integrated multi-modal activity routing and network assignment models
Transportation Research Part C: Emerging Technologies ( IF 7.6 ) Pub Date : 2020-11-09 , DOI: 10.1016/j.trc.2020.102853
Ali Najmi , David Rey , S. Travis Waller , Taha H. Rashidi

In this paper, a novel transport planning model system (TPMS) is formulated built on the concepts of network, multi-modality, integrity and instant calibration. In the proposed formulation, activity-travel pattern (ATP) choice elements including the choices of activity, activity sequence, mode, departure time, and parking location, are all unified into a time-dependent ATPs generator. The proposed model accounts for the dynamicity of the network, including time-of-day and congestion effects in a joint structure for transport supply and demand. Moreover, the proposed TPMS explicitly formulates an operating capacitated public transport system. To allow visiting locations multiple times and to alleviate the complexity of the proposed model, a novel multi-visit vehicle routing problem is proposed which does not enumerate the node and link visits. In order to calibrate the model based on the major travel attributes of the travel survey data, a set of splitting ratios are introduced to distribute trips on the network. The model uses the splitting ratios to integrate the ATPs generator and the traffic assignment (TA) model in a unified TPMS structure. The effectiveness of the proposed structure is demonstrated through numerical examples provided.



中文翻译:

集成多模式活动路由和网络分配模型的模型制定和校准过程

在本文中,基于网络,多模式,完整性和即时校准的概念,制定了一种新颖的运输计划模型系统(TPMS)。在提议的公式中,包括活动选择,活动顺序,模式,出发时间和停车位置在内的活动-旅行模式(ATP)选择元素都统一为一个与时间相关的ATP生成器。所提出的模型考虑了网络的动态性,包括在运输供求的联合结构中的每日时间和拥塞效应。此外,拟议的TPMS明确制定了可运营的公共交通系统。为了允许多次访问位置并减轻所提出模型的复杂性,提出了一种新颖的多次访问车辆路由问题,该问题未列举节点和链接访问。为了基于旅行调查数据的主要旅行属性校准模型,引入了一组拆分比率以在网络上分配旅行。该模型使用拆分比率将ATP生成器和流量分配(TA)模型集成到统一的TPMS结构中。通过提供的数值示例证明了所提出结构的有效性。

更新日期:2020-11-12
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