三维实时微观交通仿真系统的应用研究及实现

Application and Implementation of 3D Real-Time Microscopic Traffic Simulation System

针对目前路网建模工具的不足,提出了一种基于高精导航地图来快速构建车道级路网模型的方法,利用路网模型中元素的逻辑关系属性最终形成"路段-路口-路段"间隔排列形式的路网模型。在此基础上设计并实现了一个三层系统架构的实时微观交通仿真系统,系统内部采用了消息队列和内存库技术进行数据通信和信息交换,其仿真结果可以通过三维Web渲染引擎实时呈现。文章所构建的路网模型与传统模型相比方式更加灵活,所实现的三维实时微观交通仿真系统具有较好的可扩展性和实用性。

The paper proposes a rapid modelling methodology for lane-level traffic network based on high-precision navigation map, aiming at improving the modelling techniques available at present. According to the logical relationships between the elements, the proposed model is organized in the form of "segment-cross-segment" arrangement. On this basis, a real-time microscopic traffic simulation system defined by a three-layer hierarchical architecture is designed and implemented. Data communication and information exchange are implemented by the message queue and memory storage technology. The simulation result can be presented in real time by 3 D web rendering engine. In comparison to the traditional modelling of traffic network, the model proposed in this paper is more scalable and flexible, and the 3 D real-time microscopic traffic simulation system is rather practical in use.