Relationship between spatiotemporal variability of soundscape and urban morphology in a multifunctional urban area: A case study in Seoul, Korea

Abstract This study presents a new perspective on interrelationships among spatiotemporal patterns in soundscape, acoustic and urban morphological indicators. Spatiotemporal characteristics of soundscapes in a multifunctional urban area of Seoul, Korea were analyzed. Physical acoustic and perceived soundscape data were collected during three different daytime sampling periods. Urban morphological indicators representing building, road, open public space, and water feature components, were analyzed to quantify urban textures. Spatial and temporal factors were found to play critical roles in urban soundscapes. Regarding spatial patterns in soundscapes, urban soundscapes were characterized based on the main function of spaces. The temporal variability of soundscapes in urban spaces depended on diurnal patterns in perceived sound sources. Particularly, the perception of birdsong and sounds from human activities showed considerable variation across urban spaces. In addition, significant correlations were found among the spatiotemporal patterns in soundscape, acoustic and morphological factors. Based on the acoustic and morphological indicators, pleasantness and eventfulness models were proposed and the results indicated that the pleasantness model explained 50% of the variance, while the eventfulness model only predicted 13% of the variance. The results from the present study showed that urban morphological factors could be useful indicators for better understanding soundscapes in urban environments.

[1]  Catherine Marquis-Favre,et al.  Noise and its effects - : A review on qualitative aspects of sound. Part I: Notions and acoustic ratings , 2005 .

[2]  Brigitte Schulte-Fortkamp,et al.  Exploring Our Sonic Environment Through Soundscape Research & Theory , 2014 .

[3]  Luigi Maffei,et al.  Ten questions on the soundscapes of the built environment , 2016 .

[4]  Yang Sun,et al.  Effect of temporary open-air markets on the sound environment and acoustic perception based on the crowd density characteristics. , 2017, The Science of the total environment.

[5]  Brigitte Schulte-Fortkamp,et al.  Soundscape and the Built Environment , 2015 .

[6]  A. D. Mazaris,et al.  Spatiotemporal analysis of an acoustic environment: interactions between landscape features and sounds , 2009, Landscape Ecology.

[7]  Jin Yong Jeon,et al.  Influence of urban contexts on soundscape perceptions: A structural equation modeling approach , 2015 .

[8]  B. Berglund,et al.  Guidelines for community noise , 1999 .

[9]  Mei Zhang,et al.  Semantic differential analysis of the soundscape in urban open public spaces , 2010 .

[10]  Luc Adolphe,et al.  A Simplified Model of Urban Morphology: Application to an Analysis of the Environmental Performance of Cities , 2001 .

[11]  Edward Ng,et al.  Improving air quality in high-density cities by understanding the relationship between air pollutant dispersion and urban morphologies , 2013, Building and Environment.

[12]  Jian Kang,et al.  Birdsong As an Element of the Urban Sound Environment: A Case Study Concerning the Area of Warnemunde in Germany , 2014 .

[13]  E. Fernández-Juricic,et al.  A habitat island approach to conserving birds in urban landscapes: case studies from southern and northern Europe , 2001, Biodiversity & Conservation.

[14]  J. Nichol.  High-Resolution Surface Temperature Patterns Related to Urban Morphology in a Tropical City: A Satellite-Based Study , 1996 .

[15]  Mcj Maarten Hornikx.  Ten questions concerning computational urban acoustics , 2016 .

[16]  Juan Miguel Barrigón Morillas,et al.  Study on the relation between urban planning and noise level , 2016 .

[17]  Seo Il Chang,et al.  Spatial statistical analysis of the effects of urban form indicators on road-traffic noise exposure of a city in South Korea , 2017 .

[18]  B. Berglund,et al.  Soundscape quality in suburban green areas and city parks. , 2006 .

[19]  Aspa Gospodini,et al.  Urban Design, Urban Space Morphology, Urban Tourism: An Emerging New Paradigm Concerning Their Relationship , 2001 .

[20]  Jiang Liu,et al.  Soundscape design in city parks: exploring the relationships between soundscape composition parameters and physical and psychoacoustic parameters , 2015 .

[21]  Jian Kang,et al.  Effects of urban morphology on the traffic noise distribution through noise mapping: A comparative study between UK and China , 2011 .

[22]  W. D. Johnson,et al.  Intraclass Correlation Coefficient , 2006, International Encyclopedia of Statistical Science.

[23]  Jian Kang,et al.  Modeling subjective evaluation of soundscape quality in urban open spaces: An artificial neural network approach. , 2009, The Journal of the Acoustical Society of America.

[24]  R. M. Schafer,et al.  The Soundscape: Our Sonic Environment and the Tuning of the World , 1993 .

[25]  A. Fiebig,et al.  Psychoacoustics and its Benefit for the Soundscape Approach , 2006 .

[26]  Jian Kang,et al.  Soundscape and Sound Preferences in Urban Squares: A Case Study in Sheffield , 2005 .

[27]  Jian Kang,et al.  Effects of built environment morphology on wind turbine noise exposure at building façades , 2017 .

[28]  Jian Kang,et al.  Multi-sensory landscape assessment: the contribution of acoustic perception to landscape evaluation. , 2014, The Journal of the Acoustical Society of America.

[29]  Jason Corburn,et al.  Toward the Healthy City: People, Places, and the Politics of Urban Planning , 2009 .

[30]  Jian Kang,et al.  Integrated effects of urban morphology on birdsong loudness and visibility of green areas , 2015 .

[31]  Monika Rychtarikova,et al.  Soundscape categorization on the basis of objective acoustical parameters , 2013 .

[32]  H. Miedema.  Annoyance Caused by Environmental Noise: Elements for Evidence-Based Noise Policies , 2007 .

[33]  B. Berglund,et al.  A principal components model of soundscape perception. , 2010, The Journal of the Acoustical Society of America.

[34]  G. Fu,et al.  Urban planning indicators, morphology and climate indicators: A case study for a north-south transec , 2011 .

[35]  Ming Yang,et al.  Psychoacoustical evaluation of natural and urban sounds in soundscapes. , 2013, The Journal of the Acoustical Society of America.

[36]  Italo C Montalvão Guedes,et al.  Influence of urban shapes on environmental noise: a case study in Aracaju-Brazil. , 2011, The Science of the total environment.

[37]  Jian Kang,et al.  Soundscape approach integrating noise mapping techniques: a case study in Brighton, UK , 2015 .

[38]  Jian Kang,et al.  Spatiotemporal variability of soundscapes in a multiple functional urban area , 2013 .

[39]  Jian Kang,et al.  Influence of mesoscale urban morphology on the spatial noise attenuation of flyover aircrafts , 2014 .

[40]  Bin Jiang,et al.  Integration of Space Syntax into GIS: New Perspectives for Urban Morphology , 2002, Trans. GIS.

[41]  D. Botteldooren,et al.  The quiet rural soundscape and how to characterize it , 2006 .

[42]  Jin Yong Jeon,et al.  Designing sound and visual components for enhancement of urban soundscapes. , 2013, The Journal of the Acoustical Society of America.

[43]  Amos Rapoport,et al.  Human Aspects of Urban Form: Towards a Man Environment Approach to Urban Form and Design , 1977 .

[44]  Jian Kang,et al.  Relationship between green space-related morphology and noise pollution , 2017 .

[45]  Jian Kang,et al.  Soundscape descriptors and a conceptual framework for developing predictive soundscape models , 2016 .

[46]  Kazunori Hokao,et al.  Developing Soundscapegraphy for the Notation of Urban Soundscape: Its Concept, Method, Analysis and Application , 2009 .

[47]  Jin Yong Jeon,et al.  Classification of urban park soundscapes through perceptions of the acoustical environments , 2015 .

[48]  Jin Yong Jeon,et al.  Exploring spatial relationships among soundscape variables in urban areas: A spatial statistical modelling approach , 2017 .

[49]  Edward Ng,et al.  Improving the wind environment in high-density cities by understanding urban morphology and surface roughness: A study in Hong Kong , 2011, Landscape and Urban Planning.

[50]  Qi Meng,et al.  Effect of sound-related activities on human behaviours and acoustic comfort in urban open spaces. , 2016, The Science of the total environment.

[51]  E. Salomons,et al.  Urban traffic noise and the relation to urban density, form, and traffic elasticity , 2012 .