论文标题
城市运输网络中实时混合流量控制的分布式体系结构
A Distributed Architecture for Real-time Hybrid Traffic Light Control in Urban Transportation Networks
论文作者
论文摘要
提出了一个宏观模型来描述城市交通系统所涉及的交通动态。链路动力学是基于细胞传输模型来描述的，并由链路容量界定，而流动动力学是根据交叉点处的放电前进和饱和流提出的。为了满足闭环交通灯控制策略的要求，提出了一种估计交叉点的分支比率的方法，并表明模拟表明在恒定的环状流量轮廓下将达到收敛性。此外，提出了一种基于系统分配方法，该方法是通过机器学习方法实现的，并提出了混合交通网络控制策略，以将不同的交通灯控制方案整合在一起。
A macroscopic model is proposed to depict the traffic dynamics involved in urban traffic systems. The link dynamics are described based on the cell-transmission model and bounded by the link capacities, while the flow dynamics are proposed based on the discharge headways and saturation flow at intersections. To fulfill the requirement of a closed-loop traffic light control strategy, an approach to estimate the branching ratios at intersections is proposed and simulations show that the convergence would be achieved under constant cyclic flow profiles. Furthermore, a system partitioning approach is proposed based congestion level identification, which is achieved via a machine learning method and a hybrid traffic network control strategy is proposed to integrate different traffic light control schemes together.
