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Description
Urban waterfronts are the ecologically interwoven land-water zones where cities meet rivers, lakes, and the sea. They are important channels for the flow of resources and the circulation of species between land and water ecosystems (Naiman et al., 2010, Nilsson and Berggren, 2000). Their planning and control, as well as the improvement of spatial quality, have always been a hot topic in urban planning research (Hagerman, 2007). Many scholars have conducted quantitative and visual analyses using various spatial analysis software platforms and statistical methods to study urban waterfront vitality. However, due to theoretical limitations and analytical techniques, existing studies still have deficiencies in terms of systematicness and operability, and lack comprehensive coverage of multiple dimensions and multiple factors in vitality assessment. In addition, spatial vitality involves many explicit and implicit factors and is often highly dependent on the personal observation experience of the researcher (Gehl et al., 2006). Due to the differences in theoretical perspectives and personal experiences of different experts, there is still room for improvement in the reliability and validity of the results. Therefore, a complete evaluation system must be established, covering an assessment model for ecological vitality, economic vitality, social vitality, and cultural vitality, to achieve systematic and highly accurate vitality assessment to support the precise shaping of urban vitality. Urban big data and new technologies emerging with the new urban science provide new development ideas for the refined shaping of urban vitality.
Against this background, this study takes the “Yi Jiang Yi He” area of Shanghai as the research object, focusing on scientific and intelligent methods for vitality evaluation and digital physical examination. It successively carried out theoretical genealogy analysis, indicator system construction, and empirical analysis. First, the constituent and influencing factors of urban vitality were analyzed through a literature review. To obtain a more comprehensive assessment, a knowledge map of vitality covering the four dimensions of society, culture, ecology, and economy was constructed based on the large language model (LLM) and retrieval-enhanced generation technology (RAG), and the connotation and evaluation logic of the vitality factors of the waterfront area were sorted out. Second, combined with the dynamic panoramic knowledge map, a dynamic representation index and dynamic impact index system were constructed. Mathematical models such as the AHP analytic hierarchy process, entropy weighting, hierarchical regression analysis, and gradient decision tree (GBDT) were introduced to scientifically analyze the index weight and threshold interval, laying a foundation for revealing the relationship between dynamic elements and quantitative evaluation. On this basis, the comprehensive vitality evaluation system for urban waterfront areas constructed in this study has realized the vitality evaluation of 57 streets in the “one river and one lake” area of Shanghai, diagnosed the existing vitality problems, and provided urban managers and designers with a visual direction for improving the quality of urban space.
In short, the urban waterfront vitality scoring framework constructed in this study not only reveals the key shortcomings in the vitality of current waterfront areas but also provides a solid theoretical basis and technical support for subsequent large-scale, high-precision digital health checks, laying a scientific foundation for the optimization and vitality enhancement of waterfront spaces.
References
GEHL, J., KAEFER, L. J. & REIGSTAD, S. (2006) Close encounters with buildings. Urban design international, 11, 29-47.
HAGERMAN, C. (2007) Shaping neighborhoods and nature: Urban political ecologies of urban waterfront transformations in Portland, Oregon. Cities, 24, 285-297.
NAIMAN, R. J., DECAMPS, H. & MCCLAIN, M. E. (2010) Riparia: ecology, conservation, and management of streamside communities, Elsevier.
NILSSON, C. & BERGGREN, K. (2000) Alterations of riparian ecosystems caused by river regulation: Dam operations have caused global-scale ecological changes in riparian ecosystems. How to protect river environments and human needs of rivers remains one of the most important questions of our time. BioScience, 50, 783-792.
| Keywords | Digital Intelligence Enabling; Urban Waterfront Areas; Vitality Evaluation; Shanghai |
|---|---|
| Best Congress Paper Award | Yes |
