方法对比

	Urban Green Space Analysis	Mixed-Use Index
领域	Urban Studies	Urban Studies
方法族	Process / pipeline	Process / pipeline
起源年份	2014	1997
提出者	Landscape ecology and environmental-justice scholarship (e.g. Wolch, Byrne & Newell)	Cervero & Kockelman (land-use diversity / 3Ds); Frank et al. (entropy walkability term)
类型	Measurement of green space quantity, vegetation cover, and accessibility	Index of how evenly land uses are mixed within an area
开创性文献	Wolch, J. R., Byrne, J., & Newell, J. P. (2014). Urban green space, public health, and environmental justice: The challenge of making cities 'just green enough'. Landscape and Urban Planning, 125, 234–244.	Cervero, R., & Kockelman, K. (1997). Travel demand and the 3Ds: density, diversity, and design. Transportation Research Part D: Transport and Environment, 2(3), 199–219.
别名	Green Space Provision Analysis, Urban Greenness Assessment, Green Space Accessibility Analysis, NDVI Greenness Mapping	Land-Use Mix Entropy, Land-Use Diversity Index, Herfindahl Land-Use Index, Entropy Land-Use Mix
相关	4	4
摘要	Urban green space analysis measures how much vegetation and parkland a city provides and how fairly residents can reach it, combining remote-sensing greenness, per-capita provision, and accessibility into evidence for planning and public health. Satellite vegetation indices such as NDVI map greenness pixel by pixel; per-capita ratios benchmark provision against standards; and gravity or threshold accessibility measures show who lives within reach of a park. As Wolch, Byrne and Newell argued, the analysis is inseparable from environmental justice — green space is unevenly distributed, and its provision must be designed to be 'just green enough' without driving displacement.	A mixed-use index measures how evenly different land uses — residential, retail, office, civic, industrial — are blended within an area, turning the planning ideal of vibrant, walkable mixed-use districts into a number. The dominant formulation borrows the entropy measure from information theory: a value near zero when one use dominates and near one when uses are perfectly balanced. Popularised through the 'density, diversity, design' framework of Cervero and Kockelman and embedded in walkability indices by Frank and colleagues, these indices quantify land-use diversity for studies of travel behaviour, walkability and urban vitality.