Influence Of Built Environment On Acoustic Environment In Shenzhen

With the development of the society and the improvement of living standards,people's expectations for urban development have gradually shifted from the pursuit of construction speed to the pursuit of quality.In particular,megacities like Shenzhen are actively building a higher quality urban environment,and the quality of urban acoustic environment is one of the important aspects.Nowadays,various types of noise in cities have become more and more serious affecting urban life.How to create a peaceful and comfortable auditory environment is a difficult problem for urban planners.The sounds distributed in urban space are mainly generated by various social activities carried in the built environment,and the process of sound transmission is affected by the built environment,these two factors are closely related.Therefore,this paper focuses on Shenzhen to explore the impact of urban built environment factors on the acoustic environment.In this paper,the stratified sampling method is used to conduct on-the-spot investigation on the typical built environment areas of six administrative districts in Shenzhen,and the objective data of acoustic environment samples and built environment are collected.The acoustic level and the statistics of the sound types of the sound samples are calculated by the acoustic software,and the acoustic environment database of the research points is compiled.Through the GIS,CAD and other related software,combined with the open data platform such as the Shenzhen citizen map,quantifying the environmental elements of the survey area,and complying the database of built-in environment of the research points.After preliminary analysis of the built environment and the corresponding acoustic environment,it is found that the acoustic environment characteristics are closely related to the built environment itself and the relative position of the built environment and the natural environment.According to this,the built environment is divided into three regional environments,including the built environment of the ecological area,the built environment of the ecological surrounding area and the built environment of the purely artificial built area.According to the database analysis,the built environmental characteristics of Shenzhen are summarized,and the built environment are divided into 17 built environment models.The acoustic environment characteristics of Shenzhen are summarized from the overall characteristics and time-varying characteristics.Based on the analysis of the built environment and acoustic environment characteristics of Shenzhen,the statistical analysis method is used to conduct a differential analysis of the acoustic environment of 17 built environment models,exploring the differences between different built environment models and verifying the different environmental elements of the built environment will also change their acoustic environment indicators.By analyzing the correlation between the two factors,further study of the relationship between the built environment elements and the acoustic environment indicators is explored,and then classify the three elements of architectural elements,road elements and landscape elements,discussing the impact of built environmental factors on the acoustic environment.In the urban construction,more and more emphasis is placed on quality.Under the background of the criticism of the extensive planning and construction methods in the past,the impact of built environmental factors on the acoustic environment has been analyzed,and new ideas have been provided for improving the quality of acoustic environment on urban planning and design.