Application Of Soundscape Mapping Technology In Soundscape Optimization Of Urban Open Space

With the rapid development of China's urbanization process,the acoustic environmental problems of urban open spaces are becoming increasingly serious.However,the traditional noise map can no longer satisfy the study of urban acoustic environment under the concept of soundscape.Soundscape maps are an emerging technology for soundscape research in recent years.With the pow erful spatial data visualization and spatial analysis functions of GIS,they can be applied to the soundscape studies of urban open spaces.How ever,there are few studies on soundscape maps and sound optimization of urban open spaces,and there is no complete theoretical system.Based on soundscape mapping technology,through a large amount of literature analysis and case studies,this paper summarized a set of soundscape map optimization operation process based on soundscape mapping technology for urban open spaces.The model includes three parts:soundscape investigation,soundscape analysis,and soundscape design.This article used Beiling Park as a typical case for research.During the soundscape investigation stage,audio recording and analysis,soundscape walk,questionnaires and scales were used to collect the physical acoustic data,sound source type data,and sound perception quality data,through preliminary analysis to determine the current situation and optimization goals of the soundscape of Beiling Park.In the soundscape analysis stage,the classic statistical and spatial statistical analysis were used to make statistics analysis of the spatial distribution pattern of soundscape indicators and its influencing factors.And using the GIS network analysis to extract the best soundscape experience path in the park.Then the optimization strategy of the soundscape in Beiling Park was determined.During the soundscape design stage,the optimization strategy and design scheme were proposed for the soundscape partition,soundscape node and soundscape experience path of Beiling Park,which are based on the soundscape analysis results and combined with five kinds of soundscape design methods.The main innovation of this article is to explore the application of various spatial analysis methods of GIS in soundscape analysis on the basis of traditional statistical analysis.The spatial analysis methods such as clustering and outlier analysis,geographic weighted regression analysis,and network analysis were explored to systematically application in soundscape research.In addition,this article conducted detailed soundscape investigation and analysis of the case of Beiling Park,and finally put forward corresponding soundscape optimization strategy and plan.At the same time,the results of the Beiling Park study also verified and perfected the urban open spaces soundscape optimization methods and operation process proposed in the article.