Abstract
Recently, Amenity is important aspect in the urban space design because many people hope high level life. In evaluating urban sound environment, sound level cannot alone be a scale of psychological estimation. For example, a necessary sound to one person might be a noise to the other person. In this paper, we researched existing state of sound with attention to difference of sound source, quality of information and environment. First of all, we performed interview to 288 persons in Tokyo as survey for urban sound environment. The interview items are sounds heard in a day, beautiful sounds, sounds listened positively, sounds heard at home and working place, affectionate sounds and typical sounds in each season. This examination continued for a year. The results suggest that sounds made by human living is important. Next, we researched announcement and departure signal at three railway stations in Tokyo. And we considered the acoustic characteristics. Even taking sound level, there is a difference by business operating forms and by public addressing equipments. It is suggested that auditory signals must be investigated ergonomically and psychologically. We also studied on construction of time sequence, distribution of sound signals and relation between each sound and its consciousness. We systematized auditory signals by using the knowledge of psychology, cognitive science and ergonomics.
