AN EMPIRICAL STUDY ON VERBAL MAP GUIDELINES FOR VISUALLY-IMPAIRED PEOPLE NAVIGATION CONSIDERING DAILY MOBILITY NEEDS

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  • 日常生活モビリティを考慮した視覚障碍者ナビの地物記述ガイドライン

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Unlike sighted people, visually-impaired people cannot use a high performance pedestrian navigation system. Therefore, they must ask sighted people to take them to a place to which they have never walked before. And, they cannot know peripheral facility and scene in a place walking in everyday life. In this way, a digital divide occurs between visually-impaired people and sighted people.<br>The purpose of this study is to revise verbal map guidelines that show rules for describing features in a town to enhance everyday mobility. Therefore, this study figures out feature information visually-impaired people use in everyday life.<br>This study presents a review of earlier studies and related studies, and make a speech augmented reality (AR) application. Because a speech AR application can get information only for hearing, it is available to visually-impaired people like sighted people using a AR application. Then, two kinds of field experiments are conducted. The first experiment is a monitor experiment and has visually-impaired people use a smartphone which implemented a speech AR application in everyday life. The second experiment is a site experiment and has them use a pedestrian navigation system and walk in a course we set according to it. Finally, from the hearing result of those experiments, verbal map guidelines are revised.<br>This study shows a pedestrian navigation system necessary for visually-impaired people considering daily mobility needs. This system will lead to the early practical use and expansion possibility of a pedestrian navigation system for visually-impaired people.

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