Compare methods

	Walkability Index	Mixed-Use Index
Field	Urban Studies	Urban Studies
Family	Process / pipeline	Process / pipeline
Year of origin	2010	1997
Originator	Lawrence Frank and colleagues	Cervero & Kockelman (land-use diversity / 3Ds); Frank et al. (entropy walkability term)
Type	Composite neighbourhood index of how supportive the built environment is of walking	Index of how evenly land uses are mixed within an area
Seminal source	Frank, L. D., Sallis, J. F., Saelens, B. E., Leary, L., Cain, K., Conway, T. L., & Hess, P. M. (2010). The development of a walkability index: Application to the Neighborhood Quality of Life Study. British Journal of Sports Medicine, 44(13), 924–933.	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.
Aliases	Frank Walkability Index, Walk Score, Neighborhood Walkability Index, Pedestrian Environment Index	Land-Use Mix Entropy, Land-Use Diversity Index, Herfindahl Land-Use Index, Entropy Land-Use Mix
Related	4	4
Summary	A walkability index measures how well a neighbourhood's built environment supports walking, by combining a small set of land-use and street-design variables into a single score. The influential index developed by Lawrence Frank and colleagues sums standardized measures of residential density, land-use mix, street connectivity, and retail floor-area ratio, giving extra weight to intersection density because connected street grids most strongly enable walking. Consumer tools such as Walk Score popularized the same idea by scoring an address on the proximity and variety of nearby destinations, making walkability a routine input to planning, public health, and real-estate analysis.	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.