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首页> 外文期刊>Transportation Research Procedia >Hybrid Modeling of Passenger and Vehicle Traffic along a Transit Line: a sub-model ready for inclusion in a model of traffic assignment to a capacitated transit network
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Hybrid Modeling of Passenger and Vehicle Traffic along a Transit Line: a sub-model ready for inclusion in a model of traffic assignment to a capacitated transit network

机译：沿过境路线的客运和车辆交通的混合建模：准备包含在功能强大的公交网络的交通分配模型中的子模型

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The CapTA model of traffic assignment to a large transit network is aimed to deal with traffic phenomena, including a range of capacity constraints, as well as with passenger route choice (Leurent et al, 2014). To this end it has a 3-layer architecture that involves (i) passenger route choice on a network of transit legs and pedestrian links, (ii) line coordination of service missions, vehicle runs with their link running times and station dwelling times, track occupancy and passenger waiting at stations, (iii) vehicle running, including the alighting and boarding of passengers in relation to run dwelling time at the station, in-vehicle passenger load in relation to seat capacity and total vehicle capacity. Yet the line model is macroscopic both for passenger flows and for vehicles serving a given mission, through a frequency variable per station. The paper brings about a novel, hybrid line model that can be used on a standalone basis at the line level or by inclusion in a three-layered model such as CapTA. In the model, a macroscopic representation of passenger flows is hybridized with a microscopic simulation of vehicles. This enables us to simulate headway (ir-)regularity and derive its consequences on vehicle loads, passenger wait times and on-board comfort, track occupancy and vehicle delay for railway modes. The resulting leg generalized times will be used to better simulate optimal travel strategies for path choice in a network in traffic assignment models such as CapTA. After presenting the model and the simulation algorithm, we provide an application to a metro line under two alternative operational policies.
机译：针对大型公交网络的交通分配的CapTA模型旨在处理交通现象，包括一系列容量限制以及乘客路线选择（Leurent等，2014）。为此，它具有3层结构，其中包括（i）在公交支路和行人通道网络上选择乘客路线，（ii）服务任务的线路协调，车辆的行驶运行时间和站点停留时间，轨道（iii）车辆行驶，包括与车站的运行停留时间有关的乘客上下车，与座位容量和总车辆容量有关的车内载客量。然而，通过每个站点的频率变量，线路模型对于客流和服务于给定任务的车辆都是宏观的。本文提出了一种新颖的混合线路模型，该模型可以在线路级别上独立使用，也可以包含在三层模型（例如CapTA）中。在模型中，客流的宏观表示与车辆的微观仿真混合在一起。这使我们能够模拟车距（不规则）并得出其对车辆载荷，乘客等待时间和车载舒适度，轨道占用率以及铁路模式车辆延迟的影响。结果得出的航程广义时间将用于更好地模拟在流量分配模型（例如CapTA）中网络中路径选择的最佳旅行策略。在介绍了模型和仿真算法之后，我们提供了两种替代运营策略下的地铁线路应用。

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