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Traffic Signal Design with an Increasing Queue Discharge Rate

机译:队列放电率提高的交通信号设计

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The traditional method of traffic signal design is based on the assumption of a constant queue discharge rate, also termed the saturation flow rate. However, a number of field studies conducted in Taiwan and the USA contradict this assumption because they reported a marginally increasing trend observed for the queue discharge rate toward the back of the queue. This paper reports on a field study conducted in Auckland, New Zealand at six signalized intersections. The field observations confirm the findings of previous research, namely that the queue discharge rate increases toward the back of the queue. Two empirical models are proposed to reflect the observed queue discharge behavior. One of them is implemented to calculate the capacity and signal timings. The proposed model shows the potential to overcome the shortcomings of the traditional method in practical applications.
机译:传统的交通信号灯设计方法是基于恒定排队排放率(也称为饱和流量)的假设。但是,在台湾和美国进行的许多实地研究都与这一假设相矛盾,因为他们报告说,向队列后方的队列排泄率观察到略有上升的趋势。本文报道了在新西兰奥克兰的六个信号交叉口进行的现场研究。实地观察证实了先前研究的结果,即队列排泄速率向队列的后面增加。提出了两个经验模型来反映观察到的排队排放行为。其中之一可用于计算容量和信号时序。提出的模型显示了克服传统方法在实际应用中的缺点的潜力。

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