考虑行人过街的被动式公交信号优先单点控制方法

Passive bus signal priority single-point control method considering pedestrian crossing

传统公交优先往往因忽略行人过街延误,导致行人滞留于交叉口。本文针对此问题,提出一种考虑行人过街影响下的被动公交优先控制方法。对行人流量较大的二相位交叉口分别实施单相、二相位被动公交优先控制,并对两者效益进行分析;通过数值实验,分析不同公交载客数及公交流量下人均延误的变化。结果表明:被动公交优先的控制效益与优先相位数存在密切关系,当实施一相位公交优先时,公交乘客人均延误及行人延误均有所下降,并且公交载客数越多,流量越大时,交叉口人均延误下降趋势更为明显;实施二相位信号优先时,各指标与无优先控制基本相同,无明显优化效果。

Traditional bus priority often neglects pedestrian crossing delays,resulting in pedestrians being stranded at intersections.In response to this problem,this paper proposes a passive bus priority control method that considers the influence of pedestrian crossing:implement single-phase and two-phase passive bus priority control at two-phase intersections with large pedestrian traffic,and analyze the benefits of both.Through numerical experiments,the changes in per capita delays under different bus passenger numbers and bus flows are analyzed.The results showthat the control benefit of passive bus priority is closely related to the number of priority phases.When a phase bus priority is implemented,the delays per person and pedestrian delays of bus passengers will decrease,and the more passengers the bus carries,the greater the traffic flow,the more obvious the downward trend of per capita delay at intersections is.When two-phase signal priority is implemented,the indicators are basically the same as those without priority control,and there is no obvious optimization effect.