运用微观经济学市场摸索过程刻画拥挤状态下出行者出行路线选择行为,在出行市场背景下,描述了网络交通流由非均衡流模式向均衡流模式的演化过程。在此基础上,引入路径流约束条件,建立了容量约束下的网络交通流从非均衡向均衡流模式演化的动态模型。并以一个简单的测试网络为例,分固定需求和弹性需求两种情况对文中演化模型进行了模拟,并获得了满意结果。 In the context of the travel market, this paper describes the evolution of the network traffic flow from the unbalanced flow to the equilibrium flow using the micro-economics market exploration process to characterize the travel choice behavior of the travelers under crowded conditions. On this basis, the paper introduces the constraint conditions of the path flow and establishes a dynamic model of the evolution of the network traffic flow from non-equilibrium to equilibrium flow under capacity constraints. Taking a simple test network as an example, this paper simulates the evolvement model in two cases of fixed demand and elastic demand, and obtains satisfactory results.