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提出了一种评价交通流理论模型合理性的新方法:用交通流理论模型产生时间序列,计算这些时间序列的最大李雅普诺夫指数,用最大李雅普诺夫指数可以判断仿真交通流是否再现了交通流存在的混沌现象,以及反映的程度如何,进而评价交通流理论模型的合理性.文章介绍了方法的原理,给出了对伽赛斯-赫尔曼-伯兹(Gazis-Herman-Potts)模型;皮埃莱(Bierley)模型;洛克威尔-特莱德勒(Rock-well-Treiterer)模型三类典型的跟驰模型仿真实验的结果.分析了仿真结果,得出了有用的结论.
A new method to evaluate the rationality of the traffic flow theory model is proposed. The time series is generated by the traffic flow theory model, and the maximum Lyapunov exponent of these time series is calculated. The maximum Lyapunov exponent can be used to judge whether the simulation traffic flow reproduces the traffic The current chaos phenomenon and the degree of reflection, and then to evaluate the rationality of the traffic flow theory model.The article introduces the principle of the method, gives the Gazis-Herman-Potts Model, Bierley model and Rockwell-Treiterer model, and analyzed the simulation results and obtained some useful conclusions.