National Institute for Occupational Safety and Health, Pittsburgh, PA 15236, USA.
Appl Ergon. 2012 Nov;43(6):1058-65. doi: 10.1016/j.apergo.2012.03.006. Epub 2012 Apr 12.
This paper describes an experiment to examine whether a visual warning system can improve detection of moving machine hazards that could result in struck-by or pinning accidents. Thirty-six participants, twelve each in one of three age groups, participated in the study. A visual warning system capable of providing four different modes of warning was installed on a continuous mining machine that is used to mine coal. The speed of detecting various machine movements was recorded with and without the visual warning system. The average speed of detection for forward and reverse machine movements was reduced by 75% when using the flashing mode of the visual warning system. This translated to 0.485 m of machine travel for the fast speed condition of 19.8 m/min, which is significant in the context of the confined spaces of a mine. There were no statistically significant differences among age groups in the ability to detect machine movements for the visual warning modes in this study. The visual warning system shows promise as a safety intervention for reducing struck-by or pinning accidents involving continuous mining machines. The methods and results of this study could be applied to other moving machinery used in mining or other industries where moving machinery poses struck-by or pinning hazards.
本文描述了一项实验，旨在检验视觉警示系统是否能提高对可能导致撞击或夹伤事故的移动机器危险的检测能力。36 名参与者，每组 12 人，分别来自三个年龄组之一，参加了这项研究。在用于采煤的连续采煤机上安装了一个能够提供四种不同警示模式的视觉警示系统。记录了有和没有视觉警示系统时检测各种机器运动的速度。使用视觉警示系统的闪烁模式时，检测机器前进和后退运动的平均速度降低了 75%。这相当于在 19.8 米/分钟的快速速度条件下，机器行驶了 0.485 米，这在矿山的有限空间中是很重要的。在本研究中，视觉警示模式下，各年龄组在检测机器运动的能力方面没有统计学上的显著差异。视觉警示系统有望成为一种安全干预措施，用于减少涉及连续采煤机的撞击或夹伤事故。本研究的方法和结果可应用于采矿或其他存在撞击或夹伤危险的移动机械的其他行业。
