随着城市的发展和居民生活方式的改变,人们对于城市空间环境质量提出了更高的要求,而声环境作为城市空间物理环境重要的组成部分,日益受到人们的关注.从声环境感知的客体指标的角度出发,通过现场问卷调查的方式,发现城市步行街空间中A计权声压级和混响时间对于声景感知评价有显著的影响.其中A计权声压级对于空间声景的舒适度、放松性、交流性、强度感及空间感均有显著影响.而混响时间可以影响交流性、空间感及舒适度,对声景优化也有重要的意义.进一步的研究发现步行街空间通过对空间尺度和界面材质进行设计可以提升声景质量.
With the development of urban space and the life style of residents, people bring forward higher requirements on the quality of the physical environment. As an important component of physical environrnent, acoustic environment has drawn increasing attention. This paper presents the result of a case study focusing on the objective factors which are related to soundscape perception. It shows that the evaluation of soundscape is significantly affected by A-weighted sound level LAeq and reverberation time T30. LAeq is significantly related with comfort, relaxation, communication, strength, and space perception. The effect of reverberation time is mainly on communication and space perception. Further research shows design of space scale and facade material can significantly improve soundscape quality.