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为量化待行区的设置对左转车道通行能力的影响,分析了其特性,以饱和流率法为基础,建立了设有待行区的左转车道通行能力模型;利用线性回归方法确定了损失时间的计算公式。通过待行区设置前后左转车道的通行能力对比分析发现,通行能力提高幅度与待行区长度、损失时间有关。研究成果将为信号交叉口的规划、设计、改造、交通组织、信号配时以及交通运行评价提供理论依据。
In order to quantify the influence of the setting of the pedestrian zone on the capacity of the left turn lane, the characteristics of the lane are analyzed. Based on the saturated flow rate method, a traffic lane capacity model of the left lane with the pedestrian zone is established. The loss is determined by linear regression Time calculation formula. Through comparing the capacity of left-turn lane before and after setting the pedestrian zone, the improvement of traffic capacity is related to the length of pedestrian zone and loss time. The research results will provide theoretical basis for the planning, design, modification, traffic organization, signal timing and traffic operation evaluation of signalized intersections.