Development of clothes of elderly people for traffic safety at night based on their visual properties.

本研究旨在利用服装的图案显著性来提高安全性。它由以下三个实验组成；眼相机实验、心理评价实验和问卷调查。所有的实验都是为了确定哪种形状的图案最明显。实验1。眼睛相机实验假设眼睛首先向最明显的图案移动，当出现刺激时测量眼睛的运动。刺激由三角形、正方形、矩形和圆形等8种图案组成。U形。对被试的指导分为两类：1-1“自由观察刺激”和1-2“寻找最明显的模式”。麻木的受试者为8人，老少皆有。1-1教学结果：三角形和圆形得分高，但得分不高。教学1-2的结果：三角形和倒三角得分较高。实验2。心理评价实验在观察了1-2条指令的刺激后，被试报告了哪一种模式最显著。采用300 lx的光视、1 lx的中视和0.02 lx的暗视三个照度水平，以显示年轻人和老年人的不同结果。结果：在任意光照水平下，两代人均以三角形最显著，其次为倒三角形，圆形次之。U形图案的得分最低。必须注意的是，有些老年人在0.02 lx的情况下无法做实验（14%），或者觉得很难看到刺激但却敢做（8.3%）。实验3。问卷：为了安全起见，可以使用反光材料制作贴纸，贴纸上的图案最显眼。我们询问受试者是否愿意在身上使用复古的反光贴片。愿意使用它的受试者数量很少，尤其是年轻人（20%）。老年女性用在鞋子上的比例较高，为34.6%。然而，总的来说，人们不喜欢使用复古的反光贴片，因为安全。少

The research aims to use the property of pattern conspicuity for clothes to raise safety. It was composed of the following three experiments ; eye camera experiment, psychological evaluation experiment and questionnaire. All the experiments aim to decide which shape of pattern is the most conspicuous. Experiment 1. Eye camera experimentOn the assumption that the eyes move toward the most conspicuous pattern first, the eye movements were measured when a stimulus was presented. The stimulus was composed of 8 patterns such as a triangle, a square, a rectangular, and .a U shape. Instruction for the subjects were in two types, 1-1 "Observe the stimulus freely" and 1-2 "Search for the most conspicuous pattern." The numb of subjects was 8 persons, young and elderly.Result from the instruction 1-1 : Triangle and circle showed high scores but not much.Result from the instruction 1-2 : Triangle and inverted triangle showed high scores.Experiment 2. Psychological evaluation experimentAfter observ … More ing the stimulus with the instruction 1-2, the subjects reported which pattern was most conspicuous. Three illuminance levels of 300 lx for the photopic vision, 1 lx for the mesopic vision and 0.02 lx for the scotopic vision were employed so that the different results from young and elderly people might be exhibited.Results : At any illuminance levels and with both generations triangle showed the most conspicuous, then inverted triangle, and circle in that order. The U shaped pattern showed the smallest score. It must be noticed that some elderly people could not do the experiment for 0.02 lx (14%) or felt very difficult to see the stimulus but dared to do (8.3%).Experiment 3. QuestionnaireRetro reflective material may be used for stickers on which the most conspicuous pattern is drawn for safety. We asked subjects whether they want to use retro reflective patch on their bodies. The number of subjects willing to use it was small, particularly in young people (20%). The elderly female showed a relatively high percentage of 34.6% if it were used for shoes. As a whole, however, people do not like to use the retro reflective patch for safety. Less