> During darkness visibility diminishes resulting in reduced sight distances and drivers are subjected to anxiety that may give way to anger and frustration. However, the study is concerned with traffic shockwave propagation that could be associated with darkness on highways. Based on the hypothesis that darkness may induce temporary traffic shockwave propagation in the presence of substantial traffic volume, darkness impact study was carried out in Pontian, Johor Malaysia. Data on traffic volume, speed, headway and vehicle types were collected for three weeks in darkness condition and another three weeks in artificial light condition and analysed. Results show that darkness shockwave velocity propagations is about 35.43 km/hr/ln of which the vehicle speed reduction is within variance limits. Consequently, the study concluded that the impact of darkness on highway traffic shockwave propagation is temporary and fairly insignificant when compared with nature light and also artificial light.
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机译： >在黑暗中，能见度会降低，从而导致视距缩短，并且驾驶员可能会因焦虑而烦恼，这可能会导致愤怒和沮丧。但是，该研究与交通冲击波的传播有关，该传播可能与高速公路上的黑暗有关。基于在有大量交通量的情况下黑暗可能会引起临时交通冲击波传播的假设，在马来西亚柔佛笨珍进行了黑暗影响研究。在黑暗条件下收集了三周的交通量，速度，时速和车辆类型的数据，在人工照明条件下又收集了三周的数据，并进行了分析。结果表明，黑暗冲击波速度传播约为35.43 km / hr / ln，其中车速降低在方差极限内。因此，研究得出的结论是，与自然光和人造光相比，黑暗对高速公路交通冲击波传播的影响是暂时的，而且微不足道。
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