摘要
动态平衡运量配流问题的建模和求解是发展智能车辆导驶系统的理论基础．本文对多起点单讫点交通网络建立了连续时间最优控制模型，该模型的最优解对应干动态用户平衡解．文中提出的稳态伴随解算法避免了解复杂的两点边界值问题，可以获得原问题的近似解．该算法利用了交通网络和计算机网络的结构特性，计算速度较高，可用于城市交通流的实时控制．
The modelling and solving of dynamic epuilibrium traffic assignment problem isa theoretical basis to develop the intelligent Vehicle Highway Systems (IVHS). Inthis paper, a continuous time optimal control model for the multi-starting point andsingle-destination network, is formulated and its optimality conditions are proved tobe equivalent to the dynamic user equilibrium principle. To avoid solving the complicated two-point boundary-value problem, a steady state-costate solution algorithmis proposed that generates an approximate solution to the network optimal controlproblem. This algorithm could make the full use of the advantages of the trafficand computer network structure, and would be computationally efficient for largenetworks. The test results on an example network is reported to demonstrate theperformance of this algorithm.
出处
《自动化学报》
EI
CSCD
北大核心
1994年第6期668-677,共10页
Acta Automatica Sinica
基金
国家自然科学基金
香港理工学院研究基金
关键词
运量配流
稳态伴随解
最佳控制
交通流
dynamic equilibrium traffic assignment
steady state-costate solution
optimal control problem.
