Database research record2021·Global
Global mapping of urban-rural catchment areas reveals unequal access to services
Cattaneo, A., Nelson, A., McMenomy, T.
PNAS (Proceedings of the National Academy of Sciences) 118(2)
Urban Farm DB summary
The foundational paper on the Urban-Rural Catchment Areas (URCA) typology, mapping the urban-rural continuum worldwide as 30 classes (7 city sizes × 3 travel-time bands) and showing unequal access to services.
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