摘要
为了达到均衡城市快速路网交通负荷,提高交通运行效率的目的,该文介绍了一种模型预测路由控制方法。其控制任务被描述为一个动态的、离散时间、空间的、带有约束控制变量的最优控制问题,通过在未来较长的时段内求解每一个控制周期的最优问题来实现反馈控制。案例分析结果表明,模型预测路由控制方法能够考虑时变的交通状态,取得良好的控制效果,可为先进的交通管理系统规划设计提供依据。
In order to equilibrate traffic flow on urban expressway network and to enhance the efficiency of traffic operation,the paper introduces model-based predictive control method.Its control task is described as an optimal control problem of dynamic,discrete time,space and having restrictive control variables.The feedback control is realized by solving the optimal problem of control period within the future longer time period.The result of case analysis is shown that the model-based predictive control method can consider the time-dependent traffic status and the good control effect is achieved able to provide the basis for the planning and design of the advanced traffic management system.
出处
《城市道桥与防洪》
2010年第8期1-4,共4页
Urban Roads Bridges & Flood Control
关键词
模型预测控制
路由诱导
宏观动态交通模型
先进交通管理系统(ATMS)
model-based predictive control,route guidance,macroscopic dynamic traffic flow model,advanced traffic management systems(ATMS)
