gearing up for 2010 geographic programs leading up to the census katy rossiter us census bureau –...
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Gearing up for 2010Gearing up for 2010
Geographic Programs Leading up to the Census
Katy Rossiter
US Census Bureau – Denver
North Dakota GIS Users Conference
October 24, 2006
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Geography and the Decennial Census
• Mandated by Congress to count the population
• Every 10 years
• Results used to apportion the 435 seats in the House of Representatives
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• The quality of the census depends on…
– The questionnaires
– Collection of data
– Processing the results
– Linking the data to geography
Geography and the Decennial Census
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Geographic Participant Programs Leading to the Census
• MAF/TIGER Accuracy Improvement Program (MTAIP)
• Boundary and Annexation Survey (BAS)
• Census 2010 Redistricting Program
• Local Update of Census Addresses (LUCA)
• Participant Statistical Areas Program (PSAP)
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MTAIP• TIGER
– Topologically Integrated Geographic Encoding Reference System
– Developed by Geography Division in the 1980s
• Master Address File (MAF)
• Support the Census Bureau’s mapping needs
– Collect and store accurate geographic data
– Seamless dataset including roads, hydrography, boundaries, political and statistical geography
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MTAIP
• Accurately locate every street and map feature in the TIGER database
• Began in 2002
• Completed in 2008
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Mixed Accuracy and Completeness
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• Reduce costs
• Increase accuracy
• Utilize GPS equipped handheld devices
• Replace paper maps with digital files for other
Census programs
• Create partnerships with Tribal, State, and Local
governments to share existing GIS data
MTAIP
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MTAIP
• Harris Corporation
• Align TIGER
– Ingest local GIS data
• Spatial Quality Assessment
– 110 survey-grade GPS points
– CE95 7.6 meters
– Create centerlines from imagery or GPS
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BAS• Updates legal boundaries and names of all U.S.
governmental units
• If a county has gone through MTAIP changes may be submitted electronically
• Boundaries used to tabulate data in other Census Programs
– American Community Survey
– Population Estimates Program
– Decennial Census
• Annual Survey
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Redistricting Data Program
• Public Law 94-171
• The Census Bureau will provide state legislatures with small area tabulations necessary for redistricting
• Program began Summer 2005
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LUCA• Public Law 103-430
• Local governments review and update the Census list of individual addresses
– Allows Census to benefit from local knowledge in developing its MAF
– Benefits local governments by contributing to a more complete and accurate census
• An accurate census means local governments receive their fair share of federal and state funding
• Invitational letters - January 2007
• Promotional workshops - March – May 2007
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How does it work?
• Local governments designate a LUCA liaison
• Choose one of three options
• Receive electronic files (paper for small areas)
• Single review period for 120 calendar days
• Field verification of addresses through Address Canvassing operation
• Appeals process through an independent agency
LUCA
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LUCA Option 1
• Title 13 Full Address List Review
– Title 13 confidential agreement required
– Make correction, additions, deletions to Census address list
– May challenge block housing counts
– Update map boundaries and features
– May appeal the results to an outside agency
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• Title 13 Local Address List Submission
– Title 13 confidential agreement required
– Use Census list as a reference and make additions
– Update map boundaries and features
– May appeal the results to an outside agency
LUCA Option 2
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• Non Title 13 Local Address List Submission
– Local governments submit city-style addresses to Census
– Update map boundaries and features
LUCA Option 3
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LUCA - Strategies for Review • LUCA participants decide how to conduct their review of the LUCA
materials.
• Consider your available time, the information you have readily available, and the staff or computer resources you have.
• If a complete review is not possible, the Census Bureau recommends that you focus your review on areas where addresses are more likely missed or incorrect.
– New construction
– E-911 address conversions
– Single-family homes converted to multi-family homes and vice versa
– Apartment buildings with irregular or missing numbering schemes
– Annexed land
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• LUCA address list and GPS points from Address Canvassing are protected under Title 13
– Baldrige v. Shapiro (1982)
– Need to maintain the quality of the Decennial Census and other surveys
• Penalty $250,000 and/or 5 years imprisonment
LUCA
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PSAP
• Enables local governments delineate statistical areas
– Census tracts
– Census blocks groups
– Census designated places
• Begins Fall 2007
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Gearing up for 2010
• The Census Bureau has been working since 2002 to make the next Decennial Census more accurate
• Things really get going in Spring 2007
• It is important to maintain partnerships State, Local, and Tribal governments
• The better the geography, the better the count