摘要
应用非线性最优控制方法,对含有多起点多讫点的快速路进行了建模.使用二阶宏观交通流模型,其通过路径诱导的可变信息标志来实现.控制过程是动态、非线性及离散的最优控制过程并提出了改进梯度算法.仿真实例论证所提方法有效.
The nonlinear optimization methods for traffic control were presented. The freeway network with multi-origins and multi-destinations was modeled as a second order macroscopic traffic flow model. The approach of route diversion through variable message signs （VMS） was taken as the considered control measure. The control task was formulated as a dynamic, nonlinear,discretetime optimal control problem. An improved gradient algorithm was provided to overcome the difficulties in finding solutions of high-dimensional and nonlinear problems. The simulation proves the presented gradient algorithm is efficient.
出处
《上海理工大学学报》
CAS
北大核心
2009年第1期49-53,共5页
Journal of University of Shanghai For Science and Technology
基金
上海市重点学科建设资助项目(T0502)
上海市科委国际合作研究项目(062107043)
关键词
多起点多讫点
非线性最优化
交通控制
multi-origins and multi-destinations
nonlinear optimization
traffic control
