Abstract
For safety of occupants in houses and buildings, accidents such as falls or cuts are more important than generally supposed. This research, as a whole, deals with the existing state of accidents, by reporting five different researches on accidents ; research by newspaper, by occupant questionnaire, by a building owner's accident report, by Japanese bibliography, and by foreign bibliography. This paper, as part 1 of the research, includes conceptual study on accident and report on three researches.
