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Improving Route Choice: Communication Issues in Moving Variable Message Signs

机译：改善路线选择：移动可变消息标志中的通信问题

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Cooperative Intelligent Transport Systems (C-ITS) could benefit from the vehicle-to-infrastructure (V2I) principles to improve traffic performance, obtaining user/local data from vehicles and providing them back with information tailored from the whole system altogether. In this work, we explored the strategy of conveying recommendations to drivers through buses that are in front of them and equipped with a variable message sign (VMS) on their rear. We analyse the impact of such a strategy on the system equilibrium, using the Simulation of Urban MObility (SUMO) microscopic simulation suit. There is a correlation between the number of buses and the percentage of informed decisions and, therefore, it is crucial to consider the frequency of the bus services and the communication efficiency between the road-side (RSU) and on-board (OBU) units, as well as articulate the RSU location with traffic infrastructure, in order to minimize transmission failures and obtain a better traffic performance.
机译：协作式智能运输系统（C-ITS）可以从车辆到基础设施（V2I）原理中受益，以改善交通性能，从车辆中获取用户/本地数据，并向他们提供从整个系统定制的信息。在这项工作中，我们探索了通过前面的公交车向驾驶员传达建议的策略，该公交车的后方配备了可变信息标志（VMS）。我们使用“城市机动性仿真”（SUMO）微观仿真服分析了这种策略对系统平衡的影响。公交车的数量与明智决策的百分比之间存在关联，因此，至关重要的是要考虑公交服务的频率以及路侧（RSU）和车载（OBU）单元之间的通信效率，并通过流量基础设施明确说明RSU的位置，以最大程度地减少传输故障并获得更好的流量性能。

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