land evaluation site assessment (lesa) gis application redesign brad m. shirey, gisp the...
TRANSCRIPT
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LAND EVALUATION SITE ASSESSMENT (LESA)
GIS APPLICATION
REDESIGN
Brad M. Shirey, GISP
The Pennsylvania State University
Master of GIS Program – Capstone Proposal Advisor: Dr. Doug Miller
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Presentation Overview
Background Project Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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Geographic & Historic Context
Where Are We?
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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Geographic & Historic Context
What is the Issue?
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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State & Regional Implications
Act 138 – Agricultural Easement Purchase Program How Many Counties are Involved? Statewide Facts and Figures
• Over $581,000,000 Spent • Over 275,000 Acres
What Other States?
Participant Counties In Red
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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Berks County Farmland Preservation
History of Preservation in Berks County History of ALP Office How Does GIS Play a Role? Why a Change Now?
1990 20081998
Agricultural Conservation Easements Purchased – Farms Preserved
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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Land Evaluation Site Assessment (LESA)
What is it? Who Uses it? Why is it Used? When Was it Built? Who Built it? What Platform
Built on?
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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Project Objectives
Create New LESA Application for the Berks County Agricultural Land Preservation Office (ALP)• ESRI ArcGIS 9.3 Technology • Same Data and Scoring Procedures Used• Intuitive and Adaptable Interface
More Efficient Outputs for Analysis and Ranking Input from ALP Staff Proper Documentation and Training QAQC
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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Project Requirements
Resolve GIS Data Needs and Program Criteria. Needs Assessment Client Involvement Tackle Software and Code Problems
of Legacy Application ESRI ModelBuilder for Software Development Application Documentation Client Satisfaction
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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Assessment Criteria
What are ProgramCriteria?
Land Evaluation vs.Site Assessment
Why is GIS Important? How Complex?
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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Software Development – Model Builder
What is it? Ties Together Tools, Data and Analysis Modules Geoprocessing in
Manageable Parts Automate
Python Scripting
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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LESA – Data Requirements
How Many Data Sets? From Where? Unique Information
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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LESA – Data Requirements
Tax Parcels and Preserved Farms Current Applicants Ag Security Areas Roads and Highways County and Municipal Boundaries Sewer and Water Service Areas Soils and Land Use Cluster Areas Historic, Scenic, and Government Lands
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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Quality Assurance / Quality Control
Best Practices Ensure ALP Staff Involvement Validate Against Legacy Application Avoid Errors of Omission and
• Outputs of Project not serving the needs of the client Errors of Commission
• Analysis steps expands beyond needs of the project
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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Quality Assurance / Quality Control
Module Troubleshooting Validate Data, What are Outputs,
Validate Calculations Test Various Steps When Placed Together Test, Modify, Re-Test Ample Review for All Parties (Especially Non-GIS)
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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Timeline
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
October 2009 – November 2009Review Previous Software – Outline Geoprocessing Needs
Assess Needs of ALP – Begin Prelim QAQC
December 2009 – January 2010Bring Modules Together – Tie to Scripting
Application Documentation – Continue QAQC
February 2010 – March 2010Finalize Data – Run Test Assessment
Conduct Ranking with New & Previous VersionComplete Documentation
April 2010
Present at AAG Conference
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Anticipated Results / Benefits
Organizational Benefits• Berks County Staff Efficiency• Professional Level Software Application • User Friendly, Properly Documented.
External Benefits• Extensible to Other Preservation Programs
Personal Benefits• Building Personal Capacity and Precedent for Future
Projects
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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Challenges
Model Builder and Python Scripting Issues Documentation of Modules Flexible Model Interface for Revisions Project Timeline
Background Objectives Methods Data QAQC Timeline Results/Benefits Challenges
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References
County of Berks –Agricultural Land Preservation Office
Pennsylvania Department of Agriculture – Bureau of Farmland Preservation
The Pennsylvania State University –Land Analysis Laboratory
ESRI – ArcGIS Desktop, ArcCatalog, ModelBuilder
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Acknowledgements
Berks County Information Systems DepartmentTodd Simpson, CIO
Berks County Agricultural Land Preservation Office Tami Hildebrand, Director
Berks County Planning Commission Beth Burkovich, GIS Analyst
Penn State UniversityDr. Doug Miller, Advisor
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Questions ?