The invention provides a single-point intersection signal timing method aiming at sudden overflow risk, and aims at the situation that the traffic capacity of a downstream road section of an intersection is suddenly reduced due to an emergency, on the basis of the traditional signal timing under the condition of no overflow risk. Through the steps of overflow risk identification, determination of priority of overflow related flow directions, determination of green light time of the overflow related flow directions, determination of signal timing under the overflow risk condition and the like, the purpose of improving passing efficiency on the basis of overflow prevention is achieved. According to the method, the relationship between the priority and the green light time is quantified through fuzzy control and the shock wave model, a reasonable method is provided for intersection green light time distribution under the sudden overflow risk condition, and the traffic efficiency of the intersection is improved.
本发明提供一种针对突发性溢流风险的单点交叉口信号配时方法,针对交叉口下游路段由于突发事件通行能力骤降的情况,在传统无溢流风险情况下的信号配时基础上,通过溢流风险识别、确定溢流相关流向的优先级、确定溢流相关流向绿灯时间和确定溢流风险情况下的信号配时等步骤,达到在预防溢流的基础上提高通行效率的目的;该方法通过模糊控制和冲击波模型量化了优先级与绿灯时间之间的关系,为突发性溢流风险情况下交叉口绿灯时间分配提供了一种合理的方法,提升了交叉口的通行效率。
Single-point intersection signal timing method for sudden overflow risk
一种针对突发性溢流风险的单点交叉口信号配时方法
2022-09-30
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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