1 Putting a Transportation Perspective on Census Geography (April 11, 2010) Ed Christopher Resource Center Planning Team Federal Highway Administration 4749 Lincoln Mall Dr. Rm 600 Matteson, IL 60443 708-283-3534 [email protected]Topics • 2010 Census • Urban Areas • MSAs • PUMAs • TAZs • CTPP Update
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1 Putting a Transportation Perspective on Census Geography (April 11, 2010) Ed Christopher Resource Center Planning Team Federal Highway Administration.
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Putting a Transportation Perspective on Census Geography (April 11, 2010)
Ed Christopher Resource Center Planning TeamFederal Highway Administration
Metropolitan and Micropolitan Statistical Areas, Metropolitan Divisions, Combined Statistical Areas
Mega Regions
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PUMAs? -- What are they?
PUMAs are the zones used from PUMS data
Public Use Microdata Sample
PUMS data is based on individual census records and is available only at large geographic areas. Think of the PUMS dataset as the raw, disaggregate census sample data, at a large enough geographic level necessary to protect the confidentiality of the census respondent.
ACSSample
Standard Tabs
PUMS Records
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Why are PUMAs Important?
Let’s Look at Annual Data
● Annual Data
● 65K+
● Note the areas in gray
● We call this Swiss Cheese
NE Illinois (2008 pop estimate)
Chicago
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Why are PUMAs Important?
NE Illinois (PUMAs)
Tabulation Area for ACS
● Represent 100K
● Complete Coverage
● Smaller than Counties
● NO Swiss Cheese
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How many PUMAs should this area have?
http://www.census.gov/geo/www/maps/puma5pct.htm
City of Chicago 2000 PUMAs
2,896,016 (2000 Pop)
Why are PUMAs Important?
- Defines areas for analysis - Tabulation Area for ACS
Who Defines Them? - The Community - Led by State Data Center
When are They Defined? - Summer 2011 - Criteria out Spring 2010
CTPP is an umbrella program of dataproducts, custom tabulations, training, technical assistance, and research for the transportation community. CTPP uses data from U.S. Census Bureau, including American Community Survey (ACS).
Census Transportation Planning Products
All States + DC
AASHTO Led
Oversight Board
Five Year period ~ 2011 (2012)
CTPP Program
Federal Technical Advisory GroupTRB Subcommittee -- List Serve (830 strong)Quarterly Newsletter -- OutreachSeveral Websites
Acquire Data and Develop Products 63%
Research, Training and Outreach 21%
Manage Program 3%
Board Discretion 12%
TOTAL $5,844,332
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StatesLaine Heltebridle, PA (Region I)Nathan Erlbaum, NY (Region I)Hui Wei Shen, FL (Region II)Paul Agnello, VA (Region II)
Phillip Mescher, IA (Region III)Ahmad Jaber, UT (Region IV)
Ayalew Adamu, CA (Region IV)
MPOsKuo-Ann Chiao, NYMTC
Steven Gayle, BMTSMell Henderson, MARCArash Mirzaei, NCTCOG
Guy Rousseau, ARCClara Reschovsky,MWCOG
Pete Swensson, TRPCVacant Ex Officio Members
Ed Christopher, FHWAMelissa Chiu, Census BureauAlison Fields, Census Bureau
NCHRP Project 8-79 ($550K)Producing Transportation Data Products from the American Community Survey that Comply with Disclosure Rules Contractor selected Nov 2009Westat Inc. (signed contact January)