基于Synchro的干线交通信号配时优化

摘要

Aiming at the problem of unreasonable setting of signal phases and cycles in arteries, to improve the congestion, this paper proposed the signal timing optimization plans on multi - phase signal timing of urban arterial road. First, we surveyed the .basic data of some intersections on one arterial road, selected and optimized the index, amended the parameters, simulated traffic flow in the arterial road of the present situation and the optimized situation , and compared the index by Synchro. A direct dynamic view of the intersection congestion before and after optimization was taken. The results show that optimal arterial coordination control can reduce the control delay and improve the LOS of the intersection.%针对城市主干路上信号相位、周期设置不合理的问题,为改善干线拥堵状况并使现行使用的配时方法能适用于城市混合交通,提出对干线交通多相位信号进行配时优化设计.在对某干线若干交叉口进行大量交通调查基础上,提出选取评价指标,修正模型参数,借助交通仿真软件Synchro对于线交通交叉口的交通流进行现状和优化后的仿真,结果表明,交叉口拥挤状况进行动态达到直观观察,同时提高交叉口服务水平,修正后的参数模型对于城市混合交通具有更好的服务效果.