Effect of stand size and income on residential water demand

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dc.contributor.author Husselmann, ML en
dc.contributor.author van Zyl, Jakobus en
dc.date.accessioned 2019-11-24T20:55:58Z en
dc.date.issued 2006-09-01 en
dc.identifier.issn 1021-2019 en
dc.identifier.uri http://hdl.handle.net/2292/49064 en
dc.description.abstract This study investigated the independent effects of stand size and stand value (as a surrogate for income) on residential water demand. The study was based on the measured AADD (annual average water demand) of approximately 195 000 domestic users in the Tshwane and Ekurhuleni metropolitan areas. To remove the interdependencies between stand size and value, the data was divided into categories with similar stand sizes and values. The data was analysed in two parts: the first to investigate AADD; and the second to investigate water demand elasticity. The study found that AADD increases with both increasing stand size and stand value, and that the current design guidelines overestimate the AADD for large stands. These results confirm the work by previous researchers such as Van Vuuren and Van Beek (1997) and Jacobs et al (2004). A new envelope for the minimum and maximum AADD as a function of stand size is proposed. The data did not show strong elasticity trends, but it was found that the typical values for the stand size elasticity vary between 0 and 0,5, and for the stand value elasticity between 0 and 0,6. en
dc.relation.ispartofseries Journal of the South African Institution of Civil Engineering en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Effect of stand size and income on residential water demand en
dc.type Journal Article en
pubs.issue 3 en
pubs.begin-page 12 en
pubs.volume 48 en
dc.rights.holder Copyright: The author en
pubs.end-page 16 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Journal Article en
pubs.elements-id 760378 en
pubs.org-id Engineering en
pubs.org-id Civil and Environmental Eng en

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