Swedish Road and Transport Research Institute, Linköping, Sweden.
Ind Health. 2011;49(5):549-58. doi: 10.2486/indhealth.ms1247. Epub 2011 Aug 1.
The aim of this study was to describe the effects of sleep loss on behavioural and subjective indicators of sleepiness on a road containing a milled rumble strip in the centre of the lane. Particular attention was paid to behavioural and subjective indicators of sleepiness when using the centre lane rumble strip, and to possible erratic driving behaviour when hitting a rumble strip. In total 9 regular shift workers drove during the morning hours after a full night shift and after a full night sleep. The order was balanced. The experiment was conducted in a moving base driving simulator on rural roads with a road width of 6.5 and 9 meters. Out of the 1,636 rumble strip hits that occurred during the study, no indications of erratic driving behaviour associated with the jolt caused by making contact with the centre lane rumble strip could be found. Comparing the alert condition with the sleep deprived condition, both the standard deviation of lateral position (SDLP) and the Karolinska Sleepiness Scale (KSS) increased for sleepy drivers. For the two road widths, the drivers drove closer to the centre line on the 6.5-meter road. The KSS and the SDLP increased with time on task. This simulator study indicates that rumble strips in the centre of the lane may be an alternative to centreline and edgeline rumble strips on narrow roads.
本研究旨在描述睡眠不足对道路中心铣削型防眩条的行车行为和主观困倦指标的影响。特别关注使用中央车道防眩条时的行为和主观困倦指标，以及遇到防眩条时可能出现的不稳定驾驶行为。共有 9 名经常轮班的工人在上完夜班后，经过一整夜的睡眠，在上午的时间里开车。顺序是平衡的。实验在一个移动基础驾驶模拟器上进行，在乡村道路上进行，道路宽度为 6.5 米和 9 米。在研究过程中发生的 1636 次防眩条撞击中，没有发现与接触中央车道防眩条引起的颠簸有关的不稳定驾驶行为的迹象。将警觉状态与睡眠剥夺状态进行比较，困倦的驾驶员的横向位置标准差（SDLP）和卡罗林斯卡困倦量表（KSS）都增加了。对于两种道路宽度，驾驶员在 6.5 米宽的道路上更靠近中心线行驶。KSS 和 SDLP 随任务时间的增加而增加。这项模拟器研究表明，道路中心的防眩条可能是狭窄道路中线和边缘线防眩条的替代方案。
