面向微观交通仿真的路网建模模块实现方法

路网描述模型是微观交通流仿真的基础,其建模过程较为烦琐。为了简化路网建模工作,设计了1个路网建模模块,为用户提供路网绘制、道路属性编辑及保存工具。该模块能自动提取绘图区及编辑区的关键信息,并通过转化算法快速建立路网数据库,为道路交通场景的三维可视化及微观交通仿真模型道路动态链表构建提供数据支持。实际效果表明,该路网建模模块能够快速生成路网相关数据,以动态链接库形式创建并嵌入到微观交通流仿真软件中,移植性较好。

Method to Implement Road Network Modeling Module in Microscopic Traffic Simulation

Road-network describing model is the foundation of microscopic traffic simulation,and its modeling process is complicated.In order to simplify the road-network modeling,this paper designed an automatic road-network modeling module to provide functions of road-network drawing, road attribute editing and preservation.This module can extract the key information from drawing area and editing area automatically and quickly build database by the conversion algorithm.It supports data to realize 3D dynamic visualization of road traffic scene and constitute road dynamic chain of microscopic traffic flow modeling.Actual effect shows that this module can generate road-network data rapidly.It is created as a dynamic link library form and embedded in microscopic traffic simulation software with good portability.