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CASA Working Paper 30
The Geometry of Slums: boundaries, packing and diversity

The geometry of squatter settlements on the northeastern coast of Brazil is examined and compared to settlements in the central region of Kenya. In particular, fragmented structures, often squatter settlements composed of islands of dwelling or ?habitations? in these settlements, and void areas which are unoccupied regions between dwellings, are studied. We find that such settlements, when constrained by urban and natural boundaries, present robust configurational patterns, which we can express best by statistical distributions with the scaling properties. Such scaling properties, when considered in the context of urban planning, can be useful for describing and predicting the spatial and social parameters of such squatter settlements. Several scaling functions and other mathematical formulae, which are of interest in planning, are also derived and discussed.

Author(s):
Fabiano Sobreira
Marcelo Gomes
01/07/2001

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