合流区匝道交通量控制指标计算方法研究

摘要

城市快速路上匝道合流区是交通拥堵高发地区。作者分析了交通流崩溃现象与合流区交通拥堵现象的关系，并提出交通流崩溃事件的探测算法。利用交通流崩溃事件的发生概率模型，设计了合流区匝道交通量控制指标的计算方法。通过算例分析，进一步说明了论文计算方法的可行性。%The ramp merging area of a urban expressway is a high incidence area for traffic congestion. The relation between traffic breakdown and traffic congestion was analyzed in the area and a probe algorithm to detect traffic breakdown events was put forward. The computational methods of the control indicators for traffic volume of the ramp merging area were designed using the probabilities of traffic breakdown models. The feasibility of the design methods was further explained by a numerical example.