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交通流的研究对于城市化进程非常重要.文章以一个实际例子,阐明了交通物理学研究的主要方式.从交通动力学中的车辆跟随模型出发,综合交通流中车辆依据道路交通情况来调整车辆的运行,以保持在安全前提下的一个较快的速度和合适的车辆间距,建立了适用于单轨道高速公路的相互作用力的微观模型.在单轨道交通条件下,通过解析和数字模拟两种方法来研究该模型的平衡解,并讨论了其在微扰下的稳定性.同时,文章还试图模拟一些已知的交通相,并通过与实际交通现象中的一些特征比较来说明其可行性.此外,还通过建立相应的宏观流体力学模型,与微观模型进行比较,并肯定了其适用性.
The research of traffic flow is very important to the process of urbanization.This paper expounds the main methods of traffic physics research from a practical example.From the vehicle following model in traffic dynamics, the traffic of vehicles is adjusted according to the road traffic conditions , A micro-model of the interaction force applied to a single-track expressway was established to maintain a fast speed and a suitable distance between vehicles under the premise of safety.Under the condition of single-track traffic, through analyzing and simulating two The stability of the model under perturbation is discussed, meanwhile, the article attempts to simulate some known traffic phases and illustrates its feasibility by comparing with some characteristics of the actual traffic phenomenon In addition, through the establishment of the corresponding macroscopic hydrodynamic model, compared with the microscopic model, and affirmed its applicability.