基于多参数规划的单交叉口排队长度均衡控制

交叉口信号控制是城市交通管理的重要手段,解决城市拥堵问题需考虑交叉口的信号优化控制策略.鉴于此,针对四相位定周期单交叉口,采用存储转发方法建模,以排队长度均衡为性能指标,基于多参数规划方法离线地给出交叉口信号的优化配时策略.该策略根据交叉口车辆到达率,实时地调整各相位绿灯时间,以实现整个信号周期内绿灯时间的充分利用.通过PARAMICS平台进行的仿真实验表明了所提出控制策略的有效性.

Vehicle queuing length balanced-control of the signalized isolated intersection via multi-parametric programming

Intersection signal control is one of the essential approaches to urban transport management. The optimal signal
timing strategy of intersection should be considered in order to solve the traffic congestion. A signalized intersection with
four phases is investigated by the store-and-forward modeling, and a performance index based on queuing length balancing
is proposed. The signal timing strategy is solved off-line via multi-parametric programming. According to the vehicle arrival
rate, the green time of each phase is adjusted on-line based on the strategy to efficiently utilize passing time in whole cycle.
The simulation on PARAMICS platform shows the effectiveness of the proposed strategy.