Urban soundscapes: a quasi-experiment in landscape architecture

摘要

Soundscapes are becoming increasingly recognised as significant for sustainable development, since they involve issues of health and quality of life. With this in mind, the present study aims to further our understanding of how urban soundscapes can be altered through design of outdoor space. The study took the form of a quasi-experiment on an urban square, involving sound screens covered with ivy to form a small arbour. Assessment was effected using a mixed-method approach that included measurements of sound pressure levels as well as self-reports from (in total) 205 visitors (198 questionnaires and 9 semi-structured interviews were used for analysis). The findings reveal that the arbour improved the soundscape. This effect was further enhanced when forest sounds were added through loudspeakers, underlining the importance of qualitative considerations. The study additionally highlights potential applications of soundscape design, by examining a number of issues encountered during the project in relation to landscape architecture.