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Putting a Transportation Perspective on Census Geography (April 12, 2010)

Ed Christopher Resource Center Planning TeamFederal Highway Administration

4749 Lincoln Mall Dr. Rm 600Matteson, IL 60443

708-283-3534edc@EdtheFed.com

Topics

• 2010 Census

• Urban Areas

• MSAs

• PUMAs

• TAZs

•CTPP Update

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2010 Census Day - APRIL 1st

Short Form

Population count

Age, Race, Sex, Owner/Renter

3http://www.electiondataservices.com

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http://2010.census.gov/2010census/take10map/

What is your Local Response Rate?

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Urban Boundaries

http://www.fhwa.dot.gov/planning/census/faqa2cdt.htm

Census Defined Urban Area (UA)

Adjusted Urbanized Area (UZA)

Metropolitan Planning Area (MPA)

Non-Attainment Area

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Boundaries - the Important thing

http://www.fhwa.dot.gov/planning/census/faqa2cdt.htm

Census Defined Urban Area (UA) - Population + $$$

Adjusted Urbanized Area (UZA) - Functional Class

Metropolitan Planning Area (MPA) - MPO Jurisdiction

Non-Attainment Area

The Letters UZA and UA often get mixed up

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Boundaries - some names people use

Census Defined Urban Area (UA)Census Urbanized Area (UZA)

Adjusted Urbanized Area (UZA)Federal Aid Urban Area (FAUA)FHWA Adjusted BoundaryAdjusted Urban(ized) Area

Metropolitan Planning Area (MPA)Planning AreaMPO Boundary

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100K - Threshold

Grandfathering

200K - Project Selection Authority

1 Million+ Special Funding and Requirements

NARC - Status Quo

AASHTO -Somewhat Vague

FHWA - Internal

House - T+I Committee, HR ____

Senate -

http://www.ampo.org/assets/685_finalampopdfoverviewappro.pdf

What’s an MPO?

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Census Defined Urban Area (UA)

http://www.edthefed.com/uza/UA_Update.pdffeb. 2009

2000 density based, automated process, identified urban clusters (2,500 pop), ignored place

boundaries and built from Census Blocks

2010 Census Bureau still deciding processInvestigating use of place of work data via ACS,

reviewing land use covers and digital elevation maps and satellite imagery, thinking about using household densities and building from Census Tracts.

Look for criteria for defining urbanized areas and clusters in Spring 2010 in Federal Register

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Webinar and other Materials

http://ctpp.transportation.org/

Q/As from Webinar

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Some Final Words on UAs

http://www.fhwa.dot.gov/planning/census/faqa2cdt.htm

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Metropolitan Statistical Areas

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?

Tabulation Area for ACS

● 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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PUMA Geography

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

What is the CTPP?

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

Rich Denbow, AMPOElaine Murakami, FHWARobert Padgette, APTA

Alan Pisarski, ConsultantSteven Polzin, USF. CUTR

Nanda Srinivasan, TRB John Sprowls, FTA

Chair: Jennifer Finch, CO (Region IV)Vice Chair: Jonette Kreideweis, MN (Region III)

AASHTO Liaison:: Penelope Weinberger

17 voting members: 9 states and 8 MPOs

Consensus Decision Making

AASHTO CTPP Oversight Board (ACOB)

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Penelope WeinbergerCTPP Program Manager, AASHTO444 North Capitol Street NE Suite 249Washington, DC 20001202-624-3556pweinberger@aashto.orghttp://ctpp.transportation.org

Special Staff

Melissa ChiuCTPP Program ManagerCensu Bureau301-763-2421, 2454melissa.c.chiu@census.gov

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Data Products

Uses 2005-2007 ACSCompares to 2000Focused on TransportationIncludes Significance Tests

http://download.ctpp.transportation.org/profiles_2005-2007/ctpp_profiles.html

3-Year Data Profiles

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Coming in September

CTPP 3-Year Main Product

September 2010

2006, 2007, 2008

20,000 Pop. Areas

(County, Place, PUMAs)

Actual Flows

http://trbcensus.com/products/

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The 3-year Product Design

2000 Geography

MSA – EACH Principal City

Metropolitan Statistical Area

State-POW PUMA

State-PUMA

State-Place

State-County-MCD

State-County

Nation (US Total)

Product Structure

3-Parts

Part 1- Place of Residence

Part 2- Place of Work

Part 3- Flows between Home and Work

with On-Line Extraction Software

State

http://trbcensus.com/products/3-year_ACS/ctpptables-09apr01-rev2.xls

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3-year CTPP Product Summary

Highlights Low LightsBased on CTPP2000 Tables

Many NEW Univariate Tables

More Age Tables

Streamlined Race Tables

More HH and HH Lifecycle Tables

More English Proficiency Tables

Way more Flows Tables

Incomplete Coverage

RoundedReduced Number of Crosstabs with Mode

-- Travel time-- Household income-- Vehicle availability-- Age-- Time leaving home

Tables will have Suppression

-- Means based on 3 values

-- 3 records in Flow

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CTPP 5-year data product

CTPP 5-Year Main Product

Fall 2012

2006, 07, 08, 09, 2010

Small Areas

(Tract, TAZ, Block Group)

New TAZs

Synthetic Data and Flows

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“NEW” TAZs Traffic Analysis Zones

http://trbcensus.com/notes/ACSTAZs.pdf

• Developed in Summer 2011

• TAZs will nest with TADs

• GIS equivalency process

• Funded under Consolidated Purchase

• FHWA is contacting state DOTs to set up contacts Subcommittee working on TAZs

Guy Rousseau-chairing

TAZTraffic Analysis

Zone

Traditional Size

TADTraffic Analysis

District

20,000 population

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Building the 5-year data

Key product to the whole CTPP effort

Hinges on some key research

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)

http://www.trb.org/TRBNet/ProjectDisplay.asp?ProjectID=2708

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Resources

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CTPP List Serve

http://trbcensus.com

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“Status Report” newsletter

http://www.fhwa.dot.gov/ctpp/status.htm

http://www.trbcensus.com/newsletters.html

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ACS Data Profiles

http://ctpp.transportation.org

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Report 588 A Guidebook for Using ACS Data forTransportation Planning

275 pagesTrend AnalysisHow to recalculate

Margins of Error

http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_588.pdf

Training and Technical Assistance

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A Compass for Understanding And Using ACS Data

Set of user-specific handbooks

Train-the trainer materials

E-learning ACS Tutorial

http://www.census.gov/acs/www/UseData/Compass/compass_series.html

Working with ACS

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Getting Data - Census Standard Products

http://factfinder.census.gov

FactFinder

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What is on your mind?

http://www.edthefed.com/presentations/GIS-T(04-12-2010).ppt

For a free copy of these slides go to

http://www.dot.gov/ctpp

http://www.TRBcensus.com

http://ctpp.transportation.org