Abstract
This study pays attention to habitability of horizontal vibration in the urban high-rise apartment buildings and aims to propose the assessment of habitability in terms of sense of horizontal vibration. This paper reports about the questionnaire and the experiment on sense of horizontal vibration. As the result of the questionnaire, the inhabitants perceive vibration usually and feel difficulty in their living and sense. In consideration of the situation, it has become difficult to assess habitability in terms of the perception threshold. So it is necessary to set the allowable limit on the basis of psychological response. As The result of the experiment shows, it is possible to assess perceptible vibration using sensory magnitude. And discomfort of such vibration is low, so it is possible to extend the allowable limit using discomfort.