Study On Evaluation And Construction Strategy Of Soundscape In Campus Open Space

In this paper,the subjective and objective evaluation of the soundscape of outdoor open space in a university campus was explored,On the basis of a large amount of literature work,the author conducts intensive research,then,the construction strategy of campus soundscape was put forward:(1)Firstly,under investigation the acoustic environment of the Guangxi University campus,the sound sources in the compus are classified into the background sound,keynotes and foreground sound.By observing behavior patterns in a large number of students,a reasonable period division of soundscape measurement is obtained,In order to achieve the weighted sound pressure level meter later.(2)Secondly,through the analysis of the preference of sound sources,this paper seprate the noise from others,and analyzes the relationship between the sound pressure level of noise and sound preference is significantly negatively correlated,but the relationships are highly correlated with subjective loudness,disturbance and perception,and the correlation decrease gradually.Through the statistics of the sample,distinguish the difference of sound preference and sound precepation with different background samples;the paper using semantic differential method and combined with the SPSS factor analysis extracted 4 factors as main components of soundscape of the Guangxi University campus open space.according to primary and secondary,4 main components are functional,social,quiet and original.(3)Thirdiy,the paper establish the relations between the sound pressure level of the roads and transport accessibility.There is high correlation between the sound pressure level of the roads and the index of transport accessibility(Ginteg).It helps to guide the reasonable campus traffic planning in the future,and to make the early evaluation on traffic noise of the campus road environment.(4)Finally,combined with the above analysis results,this paper analyzes the specific problems of the campus sound environment in Guangxi University,and uses the post evaluation of soundscape,in order to construct high quality campus soundscape,and chooses the methods of soundscape designing,that is noise reduction,increasing or decreasing the soundscape,and atmosphere construction of soundscape,from basic to advanced methods.From the point of view of traffic planning,traffic control,campus district planning and landscape design,the strategy of soundscape design is put forward.