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

Research Project

Project/Area Number 09680053
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 家政学
Research InstitutionAOBA GAKUEN JUNIOR COLLEGE

Principal Investigator

ASHIZAWA Shoko  Aoba Gakuen Junior College, Home Economics, Professor, 家政科, 教授 (40191853)

Co-Investigator(Kenkyū-buntansha) IKEDA Mitsuo  Ritsumeikan University, Faculty of Science and Engineering, Professor, 理工学部・光工学科, 教授 (30016604)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1998: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1997: ¥2,500,000 (Direct Cost: ¥2,500,000)
KeywordsVisual attention / Eye movements / Conspicuous color / Conspicuous shape / Traffic safety / Elderly / Retro reflective material / Eye camera / 色の目立ち / 形の目立ち / アイカメラ / 導明視 / 再帰反射機 / 目立ち / 交通弱者 / 眼球運動
Research Abstract

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 experiment
On 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 experiment
After 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. Questionnaire
Retro 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

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 潮見 弘子: "安全に役立つワッペンに関する基礎研究-形・反射材について-" 青葉学園短期大学 紀要. 23巻. 21-27 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 芦澤昌子: "色の目立ちの安全服への応用" 日本家政学会誌. 50・5. (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Hiroko Shiomi, Junko lwato and Shoko Ashizawa: "Research of using badgc for safety -Forms and Retroreflectors-" Bullelin of Aoba Gakuen Junior College. VOL,23. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] "LIFE and SAFETY" Journal of Home Economics of Japan. Vol 50-5.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 潮見弘子: "安全に役立つワッペンに関する基礎研究-形・反射機について-" 青葉学園短期大学紀要. 23号. 21-27 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 芦澤昌子: "色の目立ちの安全服への応用" 日本家政学会誌. 50・5. (1999)

    • Related Report
      1998 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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