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Future implications of urban intensification on residential water demand
Authors:Saeed Ghavidelfar  Asaad Y. Shamseldin  Bruce W. Melville
Affiliation:Department of Civil and Environmental Engineering, The University of Auckland, Auckland, New Zealand
Abstract:Over recent decades Auckland, New Zealand, metropolitan area has vastly expanded as a result of rapid population growth and low-density housing developments. In order to manage the uncontrolled low-density urban sprawl, Auckland Council proposed a compact city model through promoting higher density housing developments. In order to understand the implications of this transition on future residential water demand, this study first evaluated water consumption in three major housing types in Auckland including single houses, low-rise and high-rise apartments. Using the geographic information system, the water consumption information, estimated from a large sample of 60,000 dwellings across Auckland, was subsequently integrated with the Proposed Auckland Unitary Plan outlining the future housing composition over different areas in Auckland. Through developing different growth scenarios, the study showed that the housing transition from single houses to more intensified multi-unit houses cannot considerably affect the average per capita water consumption in Auckland.
Keywords:residential water use  housing types  urban intensification  data integration  geographic information system (GIS)
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