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现行对交通流的拥挤—消散过程的分析方法,大多借助于时间—流量座标系,其缺点是无法对交通流在车道上的位置变化作出描述和分析,由此带来较大偏差。本文把分析放到时间—距离座标系中来进行,借助于交通流的波动原理,对拥挤—消散过程作出全面深入的分析,所得到的结论无论对路段交通分析还是对信号灯交叉口的配时分析都有助益。
The current methods of analyzing the congestion-dissipation process of traffic flow mostly rely on the time-flow coordinate system. The disadvantage of this method is that it can not describe and analyze the changes of the traffic flow in the lane, which leads to large deviation. In this paper, the analysis is carried out in the time-distance coordinate system. With the aid of the principle of the fluctuation of traffic flow, a comprehensive and in-depth analysis of the congestion-dissipation process is made. The conclusion is that no matter the traffic analysis or the intersection Time analysis is helpful.