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Influence of Discontinuous Line Markings on Time Headway Distribution in Car-Following

机译：随行行车线不连续标记对车道时距分布的影响

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摘要

Insufficient time headway is an important reason for rear-end collisions. To prevent this type of accident, a series of discontinuous line markings were installed on the surface of the slow lane of a real-world expressway in China. Statistical analyses showed that, after the installation of discontinuous line markings, 1) the mean time headway was increased, 2) the time headway distributions were relatively concentrated as compared to the control where no extra line marking was installed, and 3) the proportion of low time headway reduced while the proportion of high time headway increased. The results suggest that the discontinuous line markings may increase time headway in car-following and enhance the stability of car-following flows. This may provide the decision makers and engineers a new method in coping with issues concerning traffic safety.
机译：时间上的不足是追尾事故的重要原因。为防止此类事故，在中国实际高速公路的慢车道表面上安装了一系列不连续的线条标记。统计分析表明，在安装了不连续的线标记之后，与没有安装额外的线标记的控件相比，1）平均时距增加了，2）时间时距分布相对集中了，3）低时空时程减少，而高时空时程的比例增加。结果表明，不连续的线标记可能会增加跟车时间，并提高跟车流量的稳定性。这可以为决策者和工程师提供一种解决交通安全问题的新方法。

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