GIS Expo 2014: Progress on the GSSI Initiative & Updates on the Census.gov Website

Progress on the GSSI initiative Updates on the Census.gov

Website

HIGICC 2014 Honolulu, HI

Linda Akers Smith March 14, 2014

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Key Components of the GSS-I An integrated program that utilizes a partnership program for:

• Improved address coverage

• Annual, transaction-based address and spatial feature updates

• Enhanced quality assessment and measurement

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Address Updates

123 Testdata Road Anytown, CA 94939

Lat 37 degrees, 9.6 minutes N Lon 119 degrees, 45.1 minutes W

Street/Feature Updates

Quality Measurement

The GSS-I Partnership Program • Launched in October 2012 • Opportunity for tribal, state, county, and local

governments to continually exchange address & spatial data with the Census Bureau

• Recognizes local governments as a definitive authority for quality address and street data within their communities

• Leverages the Census Bureau’s broad partner network to encourage participation

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Benefits of Participation

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Expanded ROI – encourages re-use of local government geospatial data

Reduces redundant federal data collection efforts

Increases usage of high-quality local government data for multiple federal

programs

Provides maximum input into the American Community Survey and Population Estimates Program

Data Content Guidelines

http://www.census.gov/geo/www/gss/gdlns/addgdln.html

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Partner Data Acquisition Data as of February 17, 2014

Partners Contacted

Partners Providing Files

Address List

Acquired

Structure Coordinates

Acquired

Street Centerlines

Acquired

Partner Files Processed

TOTAL 375 247 164 546 615* 778**

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* Some counties provided multiple partial-coverage street centerline datasets (i.e., cities vs. balance of county) ** Includes feature and address files processed through the MAF/TIGER system update process

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Total Partner Addresses Received (2/20/14) 28,673,572

Duplicates Addresses Identified within Partner Datasets (multi-unit addresses missing unit

identifiers)

1,148,866 4%

Total Unduplicated Partner Addresses 27,526,810 96 %

Total Partner Addresses Matched to Master Address File (MAF)

24,336,743 88% of Total

Addresses in Same Block as MAF 22,526,027 93% of Matched

Addresses in Different Block than MAF 1,410,562 6% of Matched

New Geocode Attained 140,427 1% of Matched

Addresses w/ Same Address Class as MAF (residential, etc.)

12,397,201 51% of Matched

Addresses w/ Different Address Class than MAF

494,185 2% of Matched

Addresses w/ No Address Class Identified

11,445,357 47% of Matched

Total Partner Addresses Unmatched to MAF 3,190,067 12% of Total

Unmatched Class Residential 952,003 30% of Unmatched

Unmatched Commercial/Other/ Unspecified

2,238,064 70% of Unmatched

Block Level Address Feedback

Block Total

Addresses Total

Residential Total

Nonresidential Total Other

Total Matched

Total Added

Total Coordinates

Added Total Not Accepted

Total Not Accepted Duplicate

Total Not Accepted

Incomplete

Total Not Accepted

Other

Total Currently in

MAF

1000 0 0 0 0 0 0 0 0 0 0 0 1 1001 1 1 0 0 1 0 1 0 0 0 0 1 1002 4 4 0 0 4 0 3 0 0 0 0 4 1006 5 5 0 0 4 1 3 0 0 0 0 5 1008 2 2 0 0 2 0 2 0 0 0 0 5 1010 4 4 0 0 0 0 0 2 1 1 1 3

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Consists of block tallies detailing: • What the partner provided • Number of records matched or added to the Census address list • Number of records not accepted • Total number of records currently in the MAF

Interactive Review and Update

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• Digitizers interactively review the potential new and misaligned streets using the partner data and current imagery

• In this example, the green-blue

lines indicate street updates made by the Census Bureau based on the partner data

• The Census Bureau added 39

miles of new streets and modified 115 miles of misaligned streets based on this partner’s street centerline data

Street Centerline Updates

• 1,529.4 Miles of new roads added • Washington, DC to Julesburg, CO

• 4,013.5 Miles of updated roads • Washington, DC to Fairbanks, AK

• 5,542.9 total miles of feature updates • Across the US roundtrip

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Feature Feedback

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Adding a date of last update field to the partnership shapefiles:

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What’s new on www.census.gov?

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What is the American Community Survey?

A large, continuous survey that:

• produces characteristics of population and housing (similar to Census 2000 long form)

• produces estimates for small areas and small population groups

• samples approximately 3.54 million resident addresses per year (about 290,000 per month)

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ACS Content SOCIAL

Ancestry Citizenship & Year of Entry Disability Status Educational Attainment Field of Degree Health Insurance Grandparents Fertility Language Marital Status & History Place of Birth Migration Relationship School Enrollment Veteran Status

ECONOMIC Employment & Work Status Income & Earnings Industry & Occupation Class of Worker Commuting Poverty Status SNAP Receipt

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HOUSING Age of Householder House Heating Fuel Household Size Kitchen Facilities Occupancy and Vacancy Owner Statistics Plumbing Facilities Race of HH Renter Statistics Rooms and Bedrooms Telephone Service Tenure Units in Structure Value of Home Vehicles Available Year Householder Moved Into Unit Year Structure Built

DEMOGRAPHIC Age & Sex Race & Hispanic Origin

Data Product Release Schedule

The ACS annually releases:

1-year estimates (2012) – Areas with populations of 65,000+

• The Nation • Every state, the District of Columbia, and Puerto Rico • Every Congressional District • About 25 percent of all counties

3-year estimates (2010-2012) – Areas with populations of 20,000+

5-year estimates (2008-2012) – All areas down to the Block Group Level

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American Fact Finder

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• It's a good tool for novice users to get acquainted with ACS data tables

• Select the advanced search option

• ACS Tables are available for areas down to census tract level.

• factfinder2.census.gov

Other Downloading Options

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• Summary File Retrieval tool – Excel macro tool – Download ACS block group data – Includes Geoid – http://www.census.gov/acs/www/data_documentation/summary_

file/

• Download via FTP – Full dataset – www2.census.gov – ftp2.census.gov

www.census.gov/developers/data

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What are TIGER/Line Shapefiles?

• Extracts of selected geographic and cartographic information from MTDB.

• Nationwide coverage • Contains no sensitive data • Are designed for use with GIS • Contains geographic linear, areal, and point features,

including attribute information • Geographic entity boundaries • The legal and statistical areas for which Census tabulates

data • http://www.census.gov/geo/maps-data/data/tiger.html

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Which Product should I use?

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Which product should I use?

Product Best For... File Format Type of Data Level of Detail Descriptive Attributes

Vintages Available

TIGER/Line Shapefiles

Most mapping projects--this is our most comprehensive dataset. Designed for use with GIS (geographic information systems).

Shapefiles (.shp) and database files (.dbf)

Boundaries, roads, address ranges, water features, and more

Full detail (not generalized)

Extensive 2006 - 2013, CD 113

TIGER Geodatabases

Useful for users needing national datasets or all major boundaries for by state. Designed for use in ArcGIS. Files are extremely large.

Geodatabase (.gdb)

Boundaries, roads, address information, water features, and more

Full detail (not generalized)

Limited 2013

TIGER/Line Shapefiles & Geodatabases with Demographic Data

Demographic analysis from selected attributes from the 2010 Census, 2006-2010 ACS 5- year estimates, 2007-2011 ACS 5-year estimates, and 2008-2012 ACS 5-year estimates for selected geographies. Designed for use with GIS.

Shapefiles (.shp) and Geodatabases

Boundaries, Population Counts, Housing Unit Counts, 2010 Census Demographic Profile 1 attributes, 2006-2010 ACS 5-year estimates data profiles, 2007-2011 ACS 5-year estimates data profiles.

Full detail (not generalized)

Limited 2010, 2006-2010 ACS, 2007-2011 ACS, 2008-2012 ACS

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tigerweb.geo.census.gov

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Resources for Mapping Census Data

2010 Census Interactive Population Map A map viewer displays 2010 Census data down to the census block level.

Census Data Mapper A map viewer displays selected 2010 Census data by county

Census Flows Mapper A map viewer displays U.S. migration patterns by county and allows users to print a quality map.

County Business and Demographics Map Language Mapper

Metro and Micro Area Population Map Viewer OnTheMap

An interactive tool maps data related to workers down to the census block level. OnTheMap for Emergency Management

An interactive tool maps workforce and population data for current national hazard and emergency related events.

Small Area Income and Poverty Estimates Interactive Mapping Other Federal Government Resources

Map Viewers and Interactive Mapping Tools Census-Related Reference Resources

http://www.census.gov/geo/reference/outside_sources.html

Data Visualization Gallery

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www.census.gov/dataviz

Thank you!

Linda Akers Smith Los Angeles Regional Census Office

818-267-1724 [email protected]

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