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Geographic Support System Proposed Initiative – FY 2011 and Beyond
Michael Ratcliffe
U.S. Census Bureau
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What is the Proposed Geographic Support System Initiative?
• A budget increase over our base funding for Geographic Support System for:– Address coverage and source improvement– Feature maintenance (roads and attributes)– Quality Improvements
• For the 2020 Census, the proposed GSS Initiative supports the goal of a targeted (vs. nationwide) address canvassing
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Why do we need the GSS Initiative?
• Between 2003 – 2008 we worked with partners to update and improve the positional accuracy of TIGER
• The MAF/TIGER Accuracy Improvement Project was a significant investment that we want to build upon
• Now focus is on improving our address coverage and quality and maintaining the spatial data
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GSS Initiative - Addresses
• Currently, our primary sources for address updates:– USPS Delivery Sequence File (DSF)– Field updates from censuses and surveys
• For FY 11 and beyond, additional sources will focus on best available data from partnership and commercial files
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• Complete and current address coverage in areas without city-style address (particular focus on rural areas)
• Beyond the annual American Community Survey, current surveys will be using the Master Address File to support their statistical frames and surveys
• Positively impacts the address frame for sample surveys
GSS Initiative - Addresses
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• Continuous update of street network and attributes
• Sources will focus on best available data from partnership and commercial files
• Extensive use of imagery– Data acquisition– Data verification– Data quality assurance
GSS Initiative - Features
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GSS Initiative - Quality
• Quality improvements apply to:– Address and Spatial Data– IT Processes– Geographic Products
• Quantitative measures of address and spatial data quality are needed
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Supporting a Targeted Address Canvassing
• There will be a shift in focus – from canvassing each street to… – establishing an acceptable address list for each level
of government
• What defines “acceptable” will be a partnership collaboration between governments and the Census Bureau
• Address quality will be an important component
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Where are we now?
• Our FY 2011 budget is waiting for approval by Congress• Geography Division management devoted a 2 day session
to begin planning for the FY2011 proposed initiative• Census Bureau is forming teams to address specific topics
such as:– Address coverage– Address and spatial data sources– Policy– Partnerships– Quality assessment and evaluation– Research and Development– Technology
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How you can help
• Stronger relationship with Census Bureau Regional Office geographers to support our geographic programs
• Working with local government partners as another channel to us
• Identifying areas with new and different address and spatial data activities within your state
– E-911– USPS– Parcels