论文部分内容阅读
本文应用交通流波动理论,全面分析了信号交叉口诸排队特征,抛弃了美国May模型中的两个不合理假设(①车辆起动、制动的加减速度为无穷大;②车辆在停车线上作垂直堆积排队),建立了新的确定性排队模型,给出了一组可以综合计算诸排队指标的公式。本文包括三部份: 1.不饱和交通加减速无穷大时的排队模型; 2.不饱和交通加减速非无穷大时的排队模型; 3.饱和交通情况下的排队模型。对比饱和交通与不饱和交通的计算公式,可知,饱和交通各项排队指标可用两项之和的一组通式来表达,一项为不饱和交通的排队指标,而另一项则为饱和交通情况下多次停车所引起的排队。
This paper applies the theory of traffic flow fluctuation to comprehensively analyze the queuing characteristics at the signalized intersection and abandon two unjustified assumptions in the May model of the United States (1) when the vehicle starts, the acceleration and deceleration of the brake are infinite; (2) the vehicle operates on the parking line Vertical stacking queuing), a new deterministic queuing model is established, and a set of formulas that can comprehensively calculate the queuing index is given. This paper consists of three parts: 1. Queuing model for infinite traffic acceleration and deceleration with infinity; 2. Queuing model for non-saturated traffic acceleration and deceleration with no infinity; 3. Queuing model for saturated traffic. Comparing the formula of saturated traffic and unsaturated traffic, we can see that the queuing index of saturated traffic can be expressed by a set of general formulas of two sums, one is the queuing index of unsaturated traffic and the other one is saturated traffic Case of multiple queues caused by parking.