Building Water Sensitive Urban Design : Modelling of Green Roof
DOI:
https://doi.org/10.33736/jcest.145.2015Abstract
This project evaluates green roofs as a stormwater management tool. The goal of the project is to develop a computer aided stormwater model incorporating green roof, and evaluate its effectiveness. Specifically, the influence of media type, media depth, duration of rainfall event and average reoccurrence interval are investigated in design rainfall. The finalised model is then validated based on observed rainfall for the months of January and February of 2014. Results indicate that the green roofs are capable of removing 73.5% and 86.9% of the monthly rainfall volumes for January and February 2014, respectively, from a roof through retention. Water retention by green roofs effectively increases the time to reach the peak runoff, and slows the peak flows for a watershed. There are seasonal considerations as more runoff is generated during the month of January (northeast monsoon season) compared with the month of February (normal weather). Green roof is also effective in retaining 100% of several storms of less than 10 mm. The results demonstrate that the proposed extensive green roof for the study area functions as an excellent bio-retention system for stormwater control. The results of this research are in tandem with those of other researches performed throughout the world on hydrologic characteristics of green roof.
References
M. O'Driscoll, S. Clinton, A. Jefferson, A. Manda, and S. McMillan, "Urbanization Effects on Watershed Hydrology and In-Stream Processes in the Southern United States," 2, 2011, 605-648; doi: 10.3390/w2030605
https://doi.org/10.3390/w2030605
M. Annika, "Green Roof in Seattle- A Survey of Vegetated Roof & Rooftop Gardens". Department of Planning and Development, City of Seattle, 2010.
V. Vandermeulen, A. Verspecht, B. Vermeire, G. Van Huylenbroeck, and X. Gellynck, "The use of economic valuation to create public support for green infrastructure investments in urban area," Landscape and Urban Planning 103(2), 2011, 198-206.
https://doi.org/10.1016/j.landurbplan.2011.07.010
Volder, Astrid, and Dvorak, "Event size, substrate water content and vegetation affect storm water retention efficiency of an un-irrigated extensive green roof system in Central Texas," Sustainable Cities and Society 10, 2014, 59-64.
https://doi.org/10.1016/j.scs.2013.05.005
G. W. Christopher, and W. W. Wendy, "Green Roof Specifications and Standards," 56(8). USA, 2003.
J. Jacklyn, and N. John, "Building Green: A Guide to Using Plants on Roofs, Walls and Pavements". London, England: Greater London Authority, 2004.
W. Allan, "The Filter, Drain, and Water Holding Components of Green Roof Design". America: Colbond, Inc, 2005.
Center for Neighbourhood Technology. "The Value of Green Infrastructure," A Guide to Recognising Its Economic, Environmental and Social Benefits. North Avenue, Chicago, 2010.
B. Hunt, G. Jennings, and A. Moran, "A North Carolina Field Study to Evaluate Green Roof Runoff Quantity, Runoff Quality, and Plant Growth". North Carolina State University, Department of Biological and Agricultural Engineering, 2004.
Downloads
Published
How to Cite
Issue
Section
License
Upon acceptance of an article, the corresponding author on behalf of all authors will be asked to complete and upload the Copyright Transfer Form (refer to Copyright Issues for more information on this) alongside the electronic proof file.
Copyright Transfer Statement for Journal
1) In signing this statement, the author(s) grant UNIMAS Publisher an exclusive license to publish their original research papers. The author(s) also grant UNIMAS Publisher permission to reproduce, recreate, translate, extract or summarize, and to distribute and display in any forms, formats, and media. The author(s) can reuse their papers in their future printed work without first requiring permission from UNIMAS Publisher, provided that the author(s) acknowledge and refer the publication in the Journal.
2) For open-access articles, the author(s) agree that their articles published under UNIMAS Publisher are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (CC BY-NC-SA 4.0) which permits unrestricted use, distribution, and reproduction in any medium, for non-commercial purposes, provided the original work of the author(s) is properly cited.
3) For subscription articles, the author(s) agree that UNIMAS Publisher holds the copyright or an exclusive license to publish. Readers or users may view, download, print, and copy the content, for academic purposes, subject to the following conditions of use: (a) any reuse of materials is subjected to permission from UNIMAS Publisher; (b) archived materials may only be used for academic research; (c) archived materials may not be used for commercial purposes, which include but not limited to monetary compensation by means of sale, resale, license, transfer of copyright, loan, etc.; and (d) archived materials may not be re-published in any part, either in print or online.
4) The author(s) are responsible to ensure their submitted work is original and does not infringe any existing copyright, trademark, patent, statutory right, or propriety right of others. The corresponding author has obtained permission from all co-authors prior to submission to the journal. Upon submission of the manuscript, the author(s) agree that no similar work has been or will be submitted or published elsewhere in any language. If the submitted manuscript includes materials from others, the authors have obtained permission from the copyright owners.
5) In signing this statement, the author(s) declare that the researches which they have conducted comply with the current laws of the respective country and UNIMAS Journal Publication Ethics Policy. Any experimentation or research involving humans or the use of animal samples must obtain approval from the Human or Animal Ethics Committee in their respective institutions. The author(s) agree and understand that UNIMAS Publisher is not responsible for any compensational claims or failure caused by the author(s) in fulfilling the above-mentioned requirements. The author(s) must accept the responsibility for releasing their materials upon request by Chief Editor or UNIMAS Publisher.
6) The author(s) should have participated sufficiently in the work and ensured the appropriateness of the content of the article. The author(s) should also agree that they have no commercial attachments (e.g. patent or license arrangement, equity interest, consultancies, etc.) that might pose any conflict of interest with the submitted manuscript. The author(s) also agree to make any relevant materials and data available upon request by the editor(s) or UNIMAS Publisher.