School of Optometry and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.
Accid Anal Prev. 2011 May;43(3):1036-41. doi: 10.1016/j.aap.2010.12.002. Epub 2010 Dec 30.
This study examined whether the conspicuity of road workers at night can be enhanced by distributing retroreflective strips across the body to present a pattern of biological motion (biomotion). Twenty visually normal drivers (mean age = 40.3 years) participated in an experiment conducted at two open-road work sites (one suburban and one freeway) at night-time. At each site, four road workers walked in place wearing a standard road worker night vest either (a) alone, (b) with additional retroreflective strips on thighs, (c) with additional retroreflective strips on ankles and knees, or (d) with additional retroreflective strips on eight moveable joints (full biomotion). Participants, seated in stationary vehicles at three different distances (80 m, 160 m, 240 m), rated the relative conspicuity of the four road workers. Road worker conspicuity was maximized by the full biomotion configuration at all distances and at both sites. The addition of ankle and knee markings also provided significant benefits relative to the standard vest alone. The effects of clothing configuration were more evident at the freeway site and at shorter distances. Overall, the full biomotion configuration was ranked to be most conspicuous and the vest least conspicuous. These data provide the first evidence that biomotion effectively enhances conspicuity of road workers at open-road work sites.
本研究探讨了在夜间通过分布反光条在身体上来呈现生物运动（biomotion）模式是否可以提高道路工人的醒目度。二十名视力正常的驾驶员（平均年龄=40.3 岁）参与了在两个开放式道路工作地点（一个郊区和一个高速公路）夜间进行的实验。在每个地点，四名道路工人穿着标准的夜间道路工人背心原地行走，分别穿着（a）单独穿着，（b）大腿上增加反光条，（c）脚踝和膝盖上增加反光条，或（d）八个可移动关节上增加反光条（完全生物运动）。参与者坐在三个不同距离（80m、160m、240m）的静止车辆中，对四名道路工人的相对醒目度进行了评分。在所有距离和两个地点，完全生物运动配置使道路工人的醒目度最大化。与单独穿着标准背心相比，增加脚踝和膝盖标记也提供了显著的益处。在高速公路现场和较短的距离，服装配置的效果更为明显。总体而言，完全生物运动配置被评为最醒目，背心最不醒目。这些数据首次提供了证据表明，生物运动可以有效地提高开放式道路工作地点道路工人的醒目度。
