University of Twente Student Theses


Quantification of Urban Form Indicators

Sarlashkar, Mandar Narayan (2009) Quantification of Urban Form Indicators.

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Abstract:Sustainable urban development and sustainable transport are key concerns of policy makers. Many sustainability studies have been conducted by national governments and international organization like OECD, the EU, and the UN giving rise to sets of indicators to assess related economic, social and environmental issues. Many indicators proposed are described only at conceptual level without providing an associated specific quantifiable measure. These concepts need to be translated into a mathematical framework from which numerical estimates can be drawn. General objective of the research was to quantify urban form based compactness indicator. Limitations of the previous methods of quantifications were identified and considering the modern urban spaces, effects of poly-centrism on compactness were studied. In recent years city planners, developers and policymakers have turned focus on designing a more compact city in order to achieve a more sustainable urban form. Major concern among researchers is to quantify urban sprawl and compactness. In this study, a mathematical framework has been developed to quantify compactness. Modified ‘m-Compactness’ measure proposed in this study, based on Zhang and Guindon (2006), incorporates poly-centric urban form of modern cities. Subcenters within Ahmedabad city were successfully identified adopting the criterion used by Giuliano and Small (1991). Huff probabilistic gravity model was utilized to estimate trip attraction potentials of sub-centers. Dispersion and compactness indices based on weighted travel distance and population were computed and compared for Ahmedabad city considering mono-centric and poly-centric urban forms. The causality between travel behaviour and compactness was examined using Statistical analysis.
Item Type:Essay (Master)
Faculty:ITC: Faculty of Geo-information Science and Earth Observation
Programme:Geoinformation Science and Earth Observation MSc (75014)
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