一种交通控制与诱导递阶协调优化模型

A Hierarchical Coordination Model between Traffic Control and Route Guidance

在对交通控制与诱导的关系进行分析的基础上,借鉴大系统递阶优化的思想,利用动态交通分配模型和交通最优控制模型,提出了一种二级结构控制与诱导递阶协调的系统结构,建立协调优化模型,给出了一种迭代的协调求解算法;并针对一个仿真的路网给出模拟的协调结果,对本文的模型和算法进行了验证.

Traffic signal control and route guidance are the two main ways of on-line management for urban traffic and the integrating signal control with route guidance is one the most important researches in ITS. After the characteristics for control and guidance are analyzed in this paper, a two-level hierarchical system architecture, in which a coordination system is contracted above control system and guidance system to find coordination solutions between control signal plan and guidance route. An optimal model for such a structure is built based-on current dynamic traffic assignment model and traffic optimal control model, and a heuristic algorithm to solve the model is proposed. At last the simulation results applying such model and algorithm is given.