基于路段速度区间的干道协调控制模型研究

传统的干道协调控制模型均以路段的平均速度或设计速度为前提设计绿波协调控制方案,但路段实际车速受驾驶员行为、车辆汇入汇出、公交车进出站台等因素影响,往往无法用单一的数值去衡量,实际速度应有一定的波动区间.论文以传统的混合整数线性规划模型为基础,通过分析路段最小速度和最大速度对带宽的影响和要求建立了基于路段速度区间的干道协调控制模型,并通过与其它两种主流方法进行对比说明了模型的有效性.最后,通过仿真验证说明在路段速度处于一定的区间时该模型优化得到的控制方案对车流的排队长度、延误时间和停车次数有显著的改善.

Research of arterial traffic coordinated control model based on section speed in a range

The traditional green wave coordination models are designed on the premise of the average speed or design speed of the section, but the actual running speed is usually influenced by some factors like the driver's behavior, vehicles turning in or out of the section, and buses running in or out of the platform. Actually, the speed of the section is in a certain range. In this paper, an arterial traffic coordinated control model based on section speed in a range is built. It is also on the basis of the traditional mixed integer linear programming (MILP) model and the analysis of the influence and requirements of minimum speed and maximum speed on bandwidth. Then the validity of this model is demonstrated by comparing with the other two mainstream approaches. Finally, this model is proved to have significant improvements in queue length, average delay and stops with the result of simulation when the section speed is in a range.