Water Efficient Design ofSustainable Green Open SpacesA Knowledge BasedComputer-AidedDesign ToolDaphna Drori M.Sc. Candida...
Plan of the Talk     The water crisis and the need for a water 1   efficient design     The KBCAD tool for Water Efficient...
What makes the neighbor grass “yellower”?                                            The problem:                         ...
The Water Efficient Garden(WEG) Tool             Water efficient plants      Ben Gurion University                        ...
The Water Efficient Garden (WEG) Tool  Presenting the existing information in a  computerized format available for users ...
The WEG Tool interface                                                   An example of a pattern page                    ...
The Integrative WEG Tool              Qualitative Tool     Quantitative Tool                                              ...
Integration with the Quantitative ToolA quantitative information (in red) or a transition to thequantitative tool for a nu...
Integration with the Qualitative ToolA short definition or a transition to the qualitative tool for acomprehensive explana...
Field implementationThe Garden Case-StudyAnnual water consumption                                               140       ...
Research end Development ImplementationThe prescription - descriptive approachTable c-3 the northern zone of Israel (from ...
Summary and conclusions There is a need for reduction in waterconsumption in the built environment The WEG Tool is both ...
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Water Efficient Design of Sustainable Green Open Spaces: A Knowledge Based Computer-Aided Design Tool

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Water Efficient Design of Sustainable Green Open Spaces: A Knowledge Based Computer-Aided Design Tool

  1. 1. Water Efficient Design ofSustainable Green Open SpacesA Knowledge BasedComputer-AidedDesign ToolDaphna Drori M.Sc. CandidateProf. Edna ShavivWREF 2012 TECHNION Israel - Institute of Technology
  2. 2. Plan of the Talk The water crisis and the need for a water 1 efficient design The KBCAD tool for Water Efficient Gardens 2 (WEG) and the advantages of the tool Implementations of the WEG tool in the Israeli 3 “Sustainable Building” standard (SI 5281)
  3. 3. What makes the neighbor grass “yellower”? The problem: In respond to the water crisis, governmental policy of raising the water cost was taken and caused the drying out of the gardens and the creation of "yellow" neglected open spacesThe yellow grass of the neighbors garden The solution: Water efficient landscape design Via integration of bioclimatic design in the gardenThe green grass of the case study gardenThe question: How to do that?
  4. 4. The Water Efficient Garden(WEG) Tool Water efficient plants Ben Gurion University of the Negev Findings: Water efficient garden A field study  Governmental, professional and scientific information for water efficient gardens exists  Information is not always Ministry of Agriculture accessible for users Water Authority  Information doesn’t direct Species Factor of the planner qualitatively or the plants quantitatively, from the early Water efficient design stages landscape design  A computerized format is Ministry of Agriculture easy to retrieveA need for a KBCAD expert system for Water Efficient Gardens
  5. 5. The Water Efficient Garden (WEG) Tool  Presenting the existing information in a computerized format available for users based on the “Pattern Language”  A semi-lattice decision-making design process Christopher Alexander Water efficient gardens Landscape Agro- technical Non Level 1 Irrigation Runoff Design methods potable 5 major water branchesSpecific adjustment to every project
  6. 6. The WEG Tool interface  An example of a pattern page  Semi-lattice links to the same major branch  Semi-lattice links to other branches  Hierarchical links for orientation  Vertical links to “orientation maps”  External links to governmental sites and case studiesLinks to other patterns in the tool and outside
  7. 7. The Integrative WEG Tool Qualitative Tool Quantitative Tool  The tool directs the planner both qualitatively and quantitatively, Modify from the early design stages, WEG Tool how to achieve water efficient gardens. Water Efficient DesignQualitative guidelines and a quantitative evaluation
  8. 8. Integration with the Quantitative ToolA quantitative information (in red) or a transition to thequantitative tool for a numerical evaluation
  9. 9. Integration with the Qualitative ToolA short definition or a transition to the qualitative tool for acomprehensive explanation Fully or partially shaded vegetation by the surround built elements
  10. 10. Field implementationThe Garden Case-StudyAnnual water consumption 140 Gallons per year 120 69 100 62 52% 80 47 48 57% 60 58% 58% 63 40 34 47 32 48% 20 42% 43% 42% 0 2010 2009 2008 2007 Indoor consumption (Gallons) Irrigation consumption (Gallons) Validation procedure Remark: The results are similar but not exactly identical because the calculator is based on statistical data, while the actual results are based on the very specific conditions for the years 2007-2010
  11. 11. Research end Development ImplementationThe prescription - descriptive approachTable c-3 the northern zone of Israel (from Appendix c – SI 5281)  A Performance – based approach was developed  A prescriptive - descriptive approach was developed  Reference gardens were defined for each climate zone
  12. 12. Summary and conclusions There is a need for reduction in waterconsumption in the built environment The WEG Tool is both effective anduser friendly The WEG Tool includes qualitative aswell as quantitative tool The WEG Tool is applicable for designprocesses and R&D procedures The reference gardens for theperformance and the prescriptiveapproaches for the Israeli“sustainable building” standard weredefined by the WEG Tool

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