Acoustic environment perception and its influencing factors of costal public space in Qingdao
The coastal public space plays an important role in the coastal urban living environment,and its acoustic quality is vital to the environmental experience.Taking four types of coastal public spaces(walkways,squares,parks,and beaches)in Qingdao as the object,this study aimed to explore the acoustic characteristic,perception and influencing factors in coastal public spaces via questionnaire surveys and field measurements.The results show that the current acoustic levels in coastal public space(LAeq)were generally lower than the limits of national standards of 55 dB(A),while the background noise levels(Lmin、L90)were significantly different among the four space types.The acoustic environments of coastal public spaces were generally highly evaluated,and natural sounds were perceived as the dominant sound sources.However,there were differences among the four space types:the acoustic environment of beaches was dominant with wave sounds,and evaluated to be most satisfying;the parks were dominated with various natural sounds,and evaluated to be more eventful and less noisy;the perceived sound source was relatively simple in walkways,resulting in a lower acoustic satisfaction;the squares received the lowest evaluations on natural sounds dominance,event-fulness and satisfaction,thus the acoustic environment needs to be improved urgently.The perceived dominance of traffic noise and the maximum sound level Lmax were negatively related to the evaluation of the acoustic environment,and the age of the respondents was also a key influencing factor since older respondents were more satisfied with the acoustic environments.The research results were expected to provide theoretical guidance for the optimization of the acoustic environment in coastal public spaces.
Coastal public spaceAcoustic environmentPerceptionInfluencing factors
万方数据
维普
