基于诱导信息的城市快速路网集成控制研究

建立了快速路网匝道控制与路线诱导相结合的完全集成控制模型,考虑了入口匝道排队约束和出口匝道通行能力约束,在分流节点进行流量分配时,考虑了分流点下游路段通行能力的约束.提出根据预测的路网状况,采用多模控制方式.将驾驶员对诱导信息的服从率设成可变参数,其估计值在对驾驶员调查的基础上,通过实时仿真并加以预测来获得.基于改进的遗传算法设计了模型的求解算法.通过算例,验证集成控制策略及算法的有效性和可行性,讨论不同控制策略对系统的全局影响,以及它们之间复杂的相互作用.

Integrated control of urban expressway networks based on guidance instructions

A fully integrated control strategy for the urban expressway networks with the use of ramp control and route guidance is presented in this paper,the on-ramp queue constraint,the off-ramp traffic capacity constraint and the constraint of traffic capacity of leaving links of the bifurcation nodes are also considered.Under the forecasted traffic conditions,a multi-mode control is also proposed.The compliance rate to the guidance instructions is considered as a variable parameter.Based on the investigation to drivers,its estimated value is attained by real-time simulation and forecasting.Based on an improved genetic algorithm,a new numerical solving algorithm is also presented.The efficiency and the flexibility of the integrated control strategy and its algorithm are illustrated with a relatively simple network.The complex interactions among different control strategies and impacts on system performance are also discussed.