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FP5

RUROS Résumé de rapport

Project ID: EVK4-CT-2000-00032
Financé au titre de: FP5-EESD
Pays: United Kingdom

Soundscapes in urban spaces, modelling, guidelines and indices

Based on substantial measurements in several urban open spaces in the EU, a system for objectively describing the soundscape and acoustics environment is being established. The indices include reverberation, sound pressure level, spectrum, sound source direction, and so on.

Corresponding to the acoustic indices describing the soundscape in urban open spaces, methods for making measurements and representing results are being established. Measured indices include reverberation, sound pressure level, spectrum, sound source direction, and so on.

An overall system for describing soundscape and acoustic comfort in urban open public spaces is being established. The description includes four parts, namely characteristics of each sound source, acoustic effect of the space, social aspect, and other aspects.

Based on substantial literature review in relevant areas and pilot study in several urban open spaces in the EU, a questionnaire and a soundscape form for subjectively evaluate soundscape in urban open spaces are being established. Semantic differential analysis has been used for developing such a system. Part of the soundscape questionnaire was included in the questionnaire for physical comfort in urban open spaces, used for the large-scale survey in 12 urban open spaces in the EU.

Two computer models have been developed for predicting acoustic indices in urban open spaces, including reverberation, sound pressure level and so on. The models are based on radiosity method and image source method, respectively. In the mean time, commercial software based on ray-tracing and noise-mapping techniques have been applied for urban open spaces.

Based on the subjective survey and objective measurements, as well as a series of parametric study using the computer models, design guidelines for good soundscape and comfortable acoustic environment in urban open spaces are being developed. Various scales are considered, from planning to detailed soundscape elements.

Informations connexes

Contact

Jian KANG, (Professor)
Tél.: +44-114-2220325
Fax: +44-114-2798276
E-mail