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Application of hybrid techniques to the modelling of interurban road networks

机译:混合技术在城市间道路网络建模中的应用

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A hybrid model for interurban road network traffic is presented, which is characterized by the superimposition of two different modelling levels. The regular traffic conditions are represented by means of a macroscopic model, whereas the nonrecurrent situations are described in terms of discrete events. Apart from the originality of the application of hybrid modelling to the context of road networks, the novelty of the proposed model mainly relies on the possibility of describing the behaviour of different classes of vehicles. In particular, this is allowed by the definition of a new traffic fundamental diagram and by the introduction of interference terms into the equations describing the continuous part of the model. The presence of a discrete event modelling level enables an effective representation of the interactions among the different types of vehicles also under such unpredictable events as car accidents, traffic congestion, and critical weather conditions. The comparison between the real and the simulated evolution of some significant traffic variables is provided to give a feeling of the model experimental validation phase.
机译:提出了一种城市间道路网络交通的混合模型,其特征在于两个不同建模水平的叠加。常规交通状况通过宏观模型表示,而非经常性情况则根据离散事件进行描述。除了将混合建模应用于道路网络环境的独创性之外,所提出模型的新颖性还主要取决于描述不同类别车辆行为的可能性。特别是,这可以通过定义新的流量基本图以及将干扰项引入描述模型连续部分的方程式中来实现。离散事件建模级别的存在还可以在各种不可预测的事件(例如车祸,交通拥堵和关键天气情况)下有效表示不同类型车辆之间的交互。提供了一些重要交通变量的真实演变与模拟演变之间的比较,以提供模型实验验证阶段的感觉。

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