本文通过摸拟出行者的行为特性,提出了交通分配选择模型,并确定了分配参数的取值范围。此外,采用非线性规划的序列无约束极小化技术,提出了用路段交通量推算 O—D 出行量的计算方法。最后,本文以一中等城市的交通网络为例,分析了该互算方法的精度,从理论和实践上证实了该方法的可行性。 In this paper, we propose a traffic assignment selection model by simulating the behavior characteristics of travelers, and determine the range of the distribution parameters. In addition, a non-constrained minimization technique based on nonlinear programming is proposed to calculate the O-D travel by using the section traffic. Finally, taking a traffic network of a medium-sized city as an example, this paper analyzes the accuracy of the mutual method and proves the feasibility of the method theoretically and practically.