Vehicular Ad Hoc Networks (VANETs) are expected to be the next big step towards safer road transport, supporting applications to exchange information between vehicles. To develop novel applications for this area a high number of tests, considering all traffic situations, are demanded. However, it is unfeasible to reproduce these tests in real life, by the fact that any failure on the applications would cause severe impacts on transport system safety and could risk human lives. Thus, this paper presents the concept, model, and validation for InTAS, a realistic traffic scenario for Ingolstadt. InTAS road topology accurately represents Ingolstadt real road map. Elements such as buildings, bus stops, and traffic lights were added to the map. Twenty traffic lights systems were simulated according to the real program deployed on the traffic lights. Traffic demand was modeled based on the activitygen method, considering demographic data and real-traffic information. The city public transport system was also simulated accordingly to bus time-tables and their routes. The simulation step was implemented considering the best value for device.rerouting.probability, which was defined by evaluating InTAS output and real traffic data. The scenario was validated by comparing real-traffic data from 24 measurement points with InTAS simulation results.
翻译:交通特设网络(VANETs)预计将是朝着更安全的道路运输迈出的下一个重大步骤,它支持车辆之间交流信息的应用。为了开发该领域的新应用,需要考虑到所有交通情况,对该领域进行大量测试。然而,在现实生活中复制这些测试是不可行的,因为应用的任何故障都会对运输系统安全造成严重影响,并可能危及人的生命。因此,本文件介绍了Ingolstadt的一个现实的交通情况InTAS的概念、模式和验证。Ingolstadt InTAS道路地形学准确地代表了Ingolstadt真实的路线图。建筑、公共汽车站和交通灯等要素被添加到地图中。根据在交通灯上安装的实际程序模拟了20个交通灯系统。交通需求以活动方法为模型,考虑到人口数据和实际交通信息。城市公共交通系统也相应地模拟了公共汽车时间表及其路线。模拟步骤的实施考虑到了设备的最佳价值。根据对Ingolstad 模拟模型对实际交通状况和数据进行了对比,根据对IntaS 24号的测算结果进行了对比。