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DIVERT: A Distributed Vehicular Traffic Re-Routing System for Congestion Avoidance

机译:DIVERT:一种用于避免拥塞的分布式车辆交通重新路由系统

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Centralized solutions for vehicular traffic re-routing to alleviate congestion suffer from two intrinsic problems: scalability, as the central server has to perform intensive computation and communication with the vehicles in real-time; and privacy, as the drivers have to share their location as well as the origins and destinations of their trips with the server. This article proposes DIVERT, a distributed vehicular re-routing system for congestion avoidance. DIVERT offloads a large part of the re-routing computation at the vehicles, and thus, the re-routing process becomes practical in real-time. To take collaborative re-routing decisions, the vehicles exchange messages over vehicular ad hoc networks. DIVERT is a hybrid system because it still uses a server and Internet communication to determine an accurate global view of the traffic. In addition, DIVERT balances the user privacy with the re-routing effectiveness. The simulation results demonstrate that, compared with a centralized system, the proposed hybrid system increases the user privacy by 92 percent on average. In terms of average travel time, DIVERT's performance is slightly less than that of the centralized system, but it still achieves substantial gains compared to the no re-routing case. In addition, DIVERT reduces the CPU and network load on the server by 99.99 and 95 percent, respectively.
机译:用于缓解交通拥堵的车辆交通集中解决方案存在两个固有问题:可扩展性,因为中央服务器必须实时执行密集的计算和与车辆的通信;和隐私,因为驾驶员必须与服务器共享他们的位置以及旅行的起点和终点。本文提出了DIVERT,一种用于避免拥堵的分布式车辆重新路由系统。 DIVERT减轻了车辆重新路由计算的很大一部分,因此,重新路由过程变得实时可行。为了做出协作式重新路由决策,车辆通过车辆自组织网络交换消息。 DIVERT是一种混合系统,因为它仍然使用服务器和Internet通信来确定流量的准确全局视图。此外,DIVERT在用户隐私与重新路由有效性之间取得了平衡。仿真结果表明,与集中式系统相比,该混合系统平均将用户隐私提高了92%。就平均旅行时间而言,DIVERT的性能略低于集中式系统,但与不重路由的情况相比,它仍然取得了可观的收益。此外,DIVERT分别减少了99.99%和95%的服务器CPU和网络负载。

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