单点交叉口信号优先可以降低公交车辆延误且易于实现。研究了公交相位绿灯延长、红灯早断和插入相位三种单点公交优先感应控制策略;应用延误三角形方法建立了以公交车辆车均延误变化量和非优先相位车均延误变化量为指标的三种单点公交优先策略效益计算模型。以两相位信号控制为对象,计算对比分析了三种公交优先策略的正负效益及其影响因素,并通过仿真进行了验证分析。研究表明:公交相位绿灯延长、公交相位红灯早断和插入公交相位三种策略都能够降低公交车均延误,与此同时也都会带来非优先相位车流延误的增加,但影响的程度不同。公交相位绿灯延长策略的效益略小于公交相位红灯早断策略,而相位插入策略的效益与插入时刻等多因素相关。 Signal priority at single-point intersections reduces bus delays and is easy to implement. This paper studies three kinds of single-bus priority induction control strategies such as green-phase extension of green bus, red-light breakage and plug-in phase. By using the method of delayed triangulation, the delay variation of buses and delay of non-priority phase Three Single Point Bus Priority Strategy Benefit Calculation Model. Taking the two-phase signal control as the object, the positive and negative benefits of the three bus priority strategies and their influencing factors were calculated and compared, and the simulation analysis was carried out. The research shows that the three strategies of bus extended green light, bus red light broken early and bus phase inserted can all reduce the delay of buses, at the same time, they also increase the traffic delay of non-priority phases, but with different degrees of influence. The effectiveness of bus green extension strategy is slightly less than the bus stop red light strategy, and the benefit of phase insertion strategy is related to multiple factors such as insertion time.