Evolution of Oscillations in Congested Traffic
Evolution of Oscillations in Congested Traffic
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DOI：
10.3141/2124-19
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发表时间：
2009-12
影响因子：
1.7
通讯作者：
Jorge A. Laval;Danjue Chen;K. Amer;Angshuman Guin;Soyoung Ahn
中科院分区：
文献类型：
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作者：
Jorge A. Laval;Danjue Chen;K. Amer;Angshuman Guin;Soyoung Ahn
本文提供了额外的经验证据，证实了最近提出的关于拥堵交通振荡演化的理论。它还提出了一种计算振荡幅度变化的改进方法，包括沿着以恒定波速行进的特征线评估振荡幅度。它还表明该理论是稳健的，因为可以使用近似输入参数，而精度损失很小。此外，该论文还提供了关于没有入口或出口的高速公路路段振荡演变的发现。尽管之前的研究发现这些部分的振荡幅度有所增加，但本研究的数据表明，总体情况并非如此。这一发现对于理解同质高速公路路段中的驾驶员行为具有重要意义。
This paper provides additional empirical evidence confirming a recently proposed theory on the evolution of oscillations in congested traffic. It also proposes an improved method for computing the variation in oscillation amplitude, consisting in evaluating the oscillation amplitude along characteristic lines that travel at a constant wave speed. It is also shown that the theory is robust in that approximate input parameters can be used with little loss in accuracy. The paper, in addition, provides a finding on the evolution of oscillations in freeway segments with no entrances or exits. Although previous studies found an increase in oscillation amplitude in such segments, data in this study indicate that this is not the case in general. This finding can have important implications for understanding driver behavior in homogeneous freeway segments.