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	Urban Vitality Index	Mixed-Use Index
Odbor	Urban Studies	Urban Studies
Rodina	Process / pipeline	Process / pipeline
Rok vzniku	1961	1997
Tvorca	Jane Jacobs (conceptual); operationalised by later urban analysts	Cervero & Kockelman (land-use diversity / 3Ds); Frank et al. (entropy walkability term)
Typ	Composite descriptive index of urban vitality	Index of how evenly land uses are mixed within an area
Pôvodný zdroj	Jacobs, J. (1961). The Death and Life of Great American Cities. Random House. ISBN: 9780679741954	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.
Ďalšie názvy	Urban Vitality Measure, Jacobs Vitality Index, Street Vitality Index, Urban Liveliness Index	Land-Use Mix Entropy, Land-Use Diversity Index, Herfindahl Land-Use Index, Entropy Land-Use Mix
Príbuzné	4	4
Zhrnutie	The urban vitality index is a composite descriptive measure of how lively, busy and economically active an urban area is, built from the conditions Jane Jacobs argued generate street life. In The Death and Life of Great American Cities (1961), Jacobs identified four generators of diversity — mixed primary uses, short blocks, a mix of building ages, and sufficient density — together producing the foot traffic and 'eyes on the street' that make places vital. The index operationalises these qualities as measurable indicators for each spatial unit, normalises them onto a common scale, and combines them into a single vitality score that can be mapped, compared and tracked over time.	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.