基于计算机模拟方法的动态交通分配程序设计

Designing the System of Dynamic Trafic Assignment Based on Computer Simulation Methods

文章从计算机实现的角度 ,对基于模拟方法的动态随机交通分配问题进行了分析和设计 ,给出了路段、路口阻抗计算 ,随机路径选择、算法调用及结果统计分析等功能模块的结构设计。最后对程序实现中几个实际而又关键的问题进行了详细的阐述 ,提出了预模拟分配的思想和时间势的概念 ,并对它们在系统中的具体实现进行了描述。

This paper,from the point of view of computer programming based on simulation technology analyses and designs the algorithm of dynamic traffic flow assignment and presents the design of such function module as the calculation of link and node travel time,route choice,result statistic.In the end,the author comes up with the concept of'beforehand assignment'and'time potential',and describes the implementation way in detail.