Handbook of Planning Support Science
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Handbook of Planning Support Science

Edited by Stan Geertman and John Stillwell

Encompassing a broad range of innovative studies on planning support science, this timely Handbook examines how the consequences of pressing societal challenges can be addressed using computer-based systems. Chapters explore the use of new streams of big and open data as well as data from traditional sources, offering significant critical insights into the field.
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Chapter 32: A GIS-based planning support system for inclusionary housing profitability optimization in Cape Town, South Africa

Philip Krause, Mark Zuidgeest and Roger Behrens


South African urban centres are characterized by deeply entrenched racially operating spatial inequality; primarily a consequence of the apartheid legacy. Democratic-era, formal-housing delivery programmes on peripheral land have reinforced these patterns. In addition, gentrification of the few remaining affordable central precincts, exacerbated by urban renewal programmes, has further displaced poorer urban communities. To halt and ideally reverse this trend, for the past decade, national and municipal authorities have attempted to introduce inclusionary housing policies. The consideration by such policies of spatial factors that influence financial viability of inclusionary housing development projects, has proven challenging. The ease and rigour of decision-making at both policy and implementation levels could be enhanced by a geographic information system (GIS)-based planning support system (PSS) that is capable of analysing both spatial and non-spatial factors on multiple land parcels. In this research, such a PSS is evaluated through the consideration of five sites in central suburbs of Cape Town.

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