基于相位相序优化的双向绿波协调控制模型

Bi-directional green wave coordinated control model on phase sequence optimization

在干线交通各交叉口的周期时长和绿信比等参数已经确定的情况下,基于相位相序进行双向绿波协调控制策略的优化.通过分析上下行方向所在相位的绿灯启亮时刻之间的关系并建立其与绿灯时间的模型,针对具有重叠的协调相位及其特定的取值区间进行相位相序的优化,并将干线左转车流与支路车流提供通行权的非协调相位纳入干线协调中以形成更为合理的组合方案来实现绿波带宽的最大化.仿真结果表明:该方法在一定条件下可以提高绿灯时间利用效率,提高交叉口通行效率.

Based on the phase sequence,the two-way green-wave coordinated control strategy is optimized on the condition of that the cycle length and the green signal ratio of the intersections of the main line traffic have been determined.By analyzing the relationship between the green light-on time of the phase in the up-down direction and the model of the green time,the phase sequence of the coordination phase with its overlap and its specific value interval is optimized.The non-harmonized phase of the traffic flow and the tributary traffic flow is integrated into the trunk coordination to form a more reasonable combination scheme,and to maximize the green wave bandwidth.The simulation results show that the proposed method can improve the green time efficiency and improve the traffic efficiency on the given conditions.