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Continuous-time dynamic system optimum for single-destination traffic networks with queue spillbacks

机译:具有队列溢出功能的单目的地交通网络的连续时间动态系统最佳

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摘要

Dynamic system optimum (DSO) is a special case of the general dynamic traffic assignment (DTA). It predicts the optimal traffic states of a network under time-dependent traffic conditions from the perspective of the entire system. An optimal control framework is proposed in this paper for the continuous-time DSO problem for single-destination traffic networks. Departure time choice is part of this DSO model. Double-queue model is applied to capture the impact of downstream congestion and possible queue spillbacks. Feasibility conditions and model properties are discussed. A constructive procedure to compute a free-flow DSO solution is also proposed. A discretization method is described to the continuous-time systems and numerical results on two test networks are shown.
机译:动态系统优化(DSO)是常规动态流量分配(DTA)的一种特殊情况。从整个系统的角度,它可以预测与时间有关的流量条件下网络的最佳流量状态。针对单目的地交通网络的连续时间DSO问题,提出了一种最优控制框架。出发时间选择是此DSO模型的一部分。应用双队列模型来捕获下游拥塞和可能的队列溢出的影响。讨论了可行性条件和模型属性。还提出了建设性的程序来计算自由流DSO解决方案。描述了连续时间系统的离散化方法,并显示了两个测试网络上的数值结果。

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