基于O-D网络的交通流模型的分岔与混沌

Bifurcation and Chaos in a Traffic Flow Model Based on an O-D Network

以交通流O-D网络系统为背景,通过分岔图和相图讨论了在无交通阻塞下的交通费用和交通容量变化下系统非线性动力学行为的变化和运动复杂性。交通费用和交通容量作为交通网络的固有属性,对定性分析交通网络的动力学行为具有至关重要的作用。同时,数值验证了两种计算交通流O-D网络系统分岔图的方法的等价性。

In the context of a traffic flow system based on an O-D network, the variation of nonlinear dynamical behaviors and complexity of motion under the variation of uncongested traffic cost and capacity of the roads are discussed through bifurcation diagram and phase plot. Traffic cost and capacity of road, as the intrinsic property of traffic network, play an important role in qualitative analysis of the dynamical behavior of traffic network. Moreover, the equivalence of two methods to plot the bifurcation diagram of O-D network is proved numerically.