基于OD的微观交通发车仿真系统设计

Design of traffic microscope simulation system for producing vehicles based on OD

在分析了微观交通发车的一般流程和方法及微观交通仿真系统需求的基础上,设计了基于OD矩阵的微观发车仿真系统结构,分别应用GIS的思路、Floyd-Warshall算法和函数变换法实现了仿真系统中交通网络模块、道路路径模块和发车模块的功能,并介绍了OD矩阵模块和车辆模块的实现思路。最后采用面向对象的程序设计方法生成了符合仿真需求的运动车辆,为微观交通仿真系统的实现奠定了基础。

This paper analyzed models and demand of traffic microscope simulation for producing vehicles,then designed the structure of the simulation system based on OD.After presenting the models of OD and vehicles,the system applied the theory of GIS to generate traffic network,built the road path with Floyd-Warshall algorithm and realized the distribution of headway by function-transfer method.The simulation system was programmed with the idea of object-oriented.Program process was described and would be the fundament of traffic microscope simulation system.