匝道系统减速车道对高速公路交通流的影响

The effects of decelerating lane in the off-ramp system

主要研究匝道系统减速车道对高速公路交通流的影响.在开放边界条件下,以NaSch模型为基础,建立了含减速车道的出口匝道系统双车道元胞自动机交通流模型.通过计算机数值模拟,得出不同参数控制下的密度、速度、流量和车辆产生概率关系图像,并与不设减速车道的匝道系统进行比较.

In this paper,we study the effects of decelerating lane in the off-ramp system of freeway.Based on the NaSch model of traffic flow,a model of two-lane system with off-ramp is established.From the numerical simulations,we obtain the fundamental diagrams of traffic flow under different parameters.Moreover,we compare the road including decelerating lane with the road without it.