基于HLA的城市交通控制系统仿真

提出了用高层体系结构(High Level Architecture，HLA)开发城市交通系统的方法。以HLA为计算机仿真标准，对一个简化的城市交通网建了HLA仿真模型。整个仿真系统是一个联邦，共由12个联邦成员组成．每一个联邦成员仿真一个路段、十字路口、三叉路口或立交桥等实体的行为。联邦成员之间通过公布或定购属性来得到获取即将通行的车辆流量值，通过公布或定购交互来知道交通状况是否拥挤。仿真结果表明该仿真系统可以根据交通状况实时调整交通信号灯以达到对交通实时控制的能力，缓解局部交通高峰尤其有效。用HLA技术开发城市交通控制系统是一种可行的方法。

Urban Traffic Control Simulation Based on HLA

This paper presents a new method for developing Urban Traffic Control systems (UTC) adopting High Level Architecture (HLA) technology. A simple urban traffic network is modeled with HLA. The simulation is a federation formed by twelve federate members. Every federate member simulates the behavior of an instance of one segment roadway, crossroad, trident roadway or flyover. All federate members get the values of the coming vehicle flow through publishing of subscribing the attributes of classes, and know that the traffic situation is normal or abnormal through publishing or subscribing the interaction. The simulation result shows that it can real-timely control the traffic condition through parameter tuning of traffic lights and it can relieve local erumpent traffic peak especially. It is a feasible approach to research urban traffic control systems with HLA.