This paper presents a distributed adaptive signal control and advisory speed coordination method based on shockwave theory, which accommodates diverse traffic conditions. In order to assess signal control efficiency under various scenarios, an innovative evaluation index termed synthetic delay is introduced based on the analysis of traffic dynamics at intersections. Considering the formation and dissipation of queue, and flow fluctuation of incoming traffic, it automatically evaluates control delay and throughput with distinctive significances. The distributed adaptive control method calculates the optimal green time in real time to minimize total synthetic delay at intersections. Furthermore, the coordination of advisory speed with the signal control schemes is addressed to ensure smooth progressions for vehicles. The proposed method considers the saturation of traffic and upstream traffic flow changes, leading to adaptability to changing traffic scenarios and effective coordination of traffic control. Several simulations were conducted and compared with the proposed method with other control methods. The results demonstrate that the proposed methods reduce the control delay and increase intersection throughput remarkably under different traffic saturations, confirming their effectiveness.

中文翻译：

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基于冲击波理论的分布式自适应信号控制协调与咨询速度优化


该文提出了一种基于冲击波理论的分布式自适应信号控制和咨询速度协调方法，该方法可适应不同的交通状况。为了评估各种场景下的信号控制效率，在分析交叉通动态的基础上，引入了一种创新的评价指标——合成时延。考虑到队列的形成和耗散，以及入流量的流量波动，它自动评估了具有独特意义的控制延迟和吞吐量。分布式自适应控制方法实时计算最佳绿灯时间，以最大限度地减少交叉点处的总合成延迟。此外，还解决了咨询速度与信号控制方案的协调问题，以确保车辆的平稳运行。所提出的方法考虑了流量的饱和度和上游流量的变化，从而能够适应不断变化的流量场景和有效的协调流量控制。进行了几次仿真，并与所提出的方法与其他控制方法进行了比较。结果表明，所提出的方法在不同交通饱和下显著降低了控制延迟，显著提高了交叉口吞吐量，证实了其有效性。