The The World of Census DATAWorld of Census DATA according toaccording to Ed Christopher Ed Christopher

FHWA Resource Center Planning Team FHWA Resource Center Planning Team

an update of relevant activitiesan update of relevant activities

CTPP 2000 CTPP 2000 Production is DoneProduction is Done

Technical Support Technical Support ContinuesContinues

202-366-5000202-366-5000

List ServeList Serve

CTPP@fhwa.dot.govCTPP@fhwa.dot.gov

Two WebsitesTwo Websites

www.dot.gov/CTPPwww.dot.gov/CTPP

TRBcensus.comTRBcensus.comASCII files are served online from BTS TranStats

Disks w/software at BTS Product Distribution Center

CTPP CTPP takes on takes on

NEW Name and Logo

NEW Name and Logo

If was first floated at TRB and has proved to be sea worthyIf was first floated at TRB and has proved to be sea worthy

1960 OMB Journey-to-Work Tables

1980 Urban Transportation Planning Package Urban Transportation Planning System-UTPS

1990 Census Transportation Planning Package CTPPCTPP

2000 Census Transportation Planning Package

1970 Urban Transportation Planning Package UTPPUTPP

CCensus ensus

TTransportationransportation

PPlanning lanning

PProductsroducts

CCensus ensus

TTransportationransportation

PPlanninglanning PProductsroducts

The CTPP embodies a collection of Census Data used for Transportation Planning. With changing data needs and the ACS, there will be a variety of different products useful for transportation planning emanating from Census Data. There will be Special Tabulations, Standard Tables and even Value Added-products. The CTPP captures all of these.

Think of the CTPP as a place to look Think of the CTPP as a place to look for Census Data products to help with for Census Data products to help with your Transportation Planning needsyour Transportation Planning needs

Look for the Look for the CTPP stampCTPP stampwhen looking for data when looking for data

Use the CTPP as your stamp of approval

Join the CTPP Join the CTPP GenerationGeneration

The American Community SurveyThe American Community Surveyis upon usis upon us

Full implementation underway

Group Quarters now added

First data – August 2006

Included some Place of Work Tables

Has issues

Has opportunities

It’s a huge paradigm shift

The ACSThe ACSData Release ScheduleData Release Schedule

Type of Data

PopulationSize of Area

Data for the Previous Year Released In the Summer of:

2006 2007 2008 2009 2010 2011 2012+

Annual Estimates 65,000+

3-year averages 20,000+

5-year averages

Less than 20,000

1

Example 1: Percent Foreign Born Population Areas with 65,000+ population

2005 2006 2007 2008 2009 2010

Single-year estimates 20.0 21.2 23.3 28.6 32.6 35.1

3-year estimates (2005 – 2007) 21.5

3-year estimates (2006 – 2008) 24.8

3-year estimates (2007 – 2009) 28.6

5-year estimates (2005 – 2009) 25.9

3-year estimates (2008 – 2010) 32.2

5-year estimates (2006 – 2010) 28.9

What data would you What data would you use in your stew?use in your stew?

Data Release Schedule Data Release Schedule for 2005 Datafor 2005 Data

August 15, 2006August 15, 2006Social and Demographic CharacteristicsSocial and Demographic Characteristics

August 29, 2006August 29, 2006Economic Characteristics; Public Use Microdata FileEconomic Characteristics; Public Use Microdata File

October 3, 2006October 3, 2006Housing Characteristics; Narrative Profiles; Housing Characteristics; Narrative Profiles; Workplace Workplace Base TablesBase Tables

November 14, 2006November 14, 2006Selected Population Profiles Selected Population Profiles

August 15August 15thth Demographic and Social Demographic and Social

August 29August 29thth Economic Characteristics Economic Characteristics

and PUMS tooand PUMS too

October 3October 3rdrd Housing ---- Etcetera Housing ---- Etcetera

October 3October 3rdrd Etcetera Etcetera

… … For Workplace GeographyFor Workplace Geography

Whose watching over all of this for Whose watching over all of this for the Transportation Community?the Transportation Community?

CTPP Working GroupCTPP Working GroupUSDOT USDOT (FHWA, BTS, FTA and OST)(FHWA, BTS, FTA and OST)

Census Bureau Census Bureau (Migration and Geography Divisions)(Migration and Geography Divisions)

AASHTOAASHTOStates and MPOsStates and MPOsTRB Subcommittee on Census DataTRB Subcommittee on Census Data

www.www.TRBcensus.comTRBcensus.com

AASHTO SCOP -- Census Data Work GroupAASHTO SCOP -- Census Data Work Group24 states, the associations, 3 MPOs24 states, the associations, 3 MPOsand Fedsand Feds

AASHTO SCOP Working GroupAASHTO SCOP Working Group

Identify Census Data IssuesIdentify Census Data Issues

Provide a Forum for SharingProvide a Forum for Sharing issues with SCOP, issues with SCOP, DOT, CB and othersDOT, CB and others

Recommend Actions Recommend Actions SCOP can take to promote more SCOP can take to promote more effective use of census data, including products to the effective use of census data, including products to the CTPPCTPP

Address Training, Technical Support and Address Training, Technical Support and Capacity BuildingCapacity Building

Identify ResearchIdentify Research

GoalsGoals

SCOP -- DOT -- TRB April WorkshopSCOP -- DOT -- TRB April Workshop

David Clawson

AASHTO SCOP

Jonette Kreideweis

Minnesota DOT

Met Face to FaceMet Face to Face

What do “YOU” want out of a CTPP?What do “YOU” want out of a CTPP?

Identified Research, Training and Data Identified Research, Training and Data NeedsNeeds

Scoped out a Multi-year Scoped out a Multi-year consolidated purchase programconsolidated purchase program

Consolidated CTPP Purchase

Recommended by SCOP Data Working Group (April 2006)

SCOP supported in concept (June 2006)

Tasks under discussion (July – Sept 2006)

Vetted (late August – Sept)

Recommended to AASHTO Board by SCOP (October 2006)

Letters of intent going out to states (December 2006)

On-Demand Technical Assistance

$930,000

Training $625,000

Research $920,000

Data Products $2,980,000

Oversight Activities $465,000

TOTAL $5,920,003

http://trbcensus.com/SCOPhttp://trbcensus.com/SCOP

More Technically FocusedMore Technically FocusedProviding Technical AssistanceProviding Technical Assistance

Expertise to ActivitiesExpertise to ActivitiesNewsletter, List serveNewsletter, List serveCommunity DevelopmentCommunity DevelopmentWorking through Disclosure IssuesWorking through Disclosure Issues

CTPP Working GroupCTPP Working Group

Let’s Look at one of our latest efforts!Let’s Look at one of our latest efforts!

1. Resident Person Information 1. Resident Person Information DONEDONE

2. Resident Household Characteristics2. Resident Household Characteristics COMING SOONCOMING SOON

3. Worker/Workplace Data3. Worker/Workplace Data UNDER DEVELOPMENTUNDER DEVELOPMENT

ACS Data ProfilesACS Data Profiles

States, Large Cities, MSAsStates, Large Cities, MSAs

Resident Person InformationResident Person Information

Mode to workMode to work

Travel Time to workTravel Time to work

Departure Time for workDeparture Time for work

Mode to work by Travel Time Mode to work by Travel Time

Mode to work by Average Travel TimeMode to work by Average Travel Time

http://ctpp.transportation.org/2005.htm

Statistical Significance TestsStatistical Significance Tests

Standard Error = Margin of Error / 1.65

But what about MOEs for 2000 data?But what about MOEs for 2000 data?

22 (SE(B))(SE(A))

BAZ

90% 90%

Confidence

Confidence

http://www.census.gov/prod/cen2000/doc/sf3.pdfhttp://www.census.gov/prod/cen2000/doc/sf3.pdf

Chapter 8: Accuracy of the DataChapter 8: Accuracy of the Data

Estimate Standard ErrorsEstimate Standard Errors

Adjust for Survey Design Adjust for Survey Design Factors - Table CFactors - Table C

http://www.chrispy.net/pipermail/ctpp-news/

1. Resident Person Information 1. Resident Person Information DONEDONE

2. Resident Household Characteristics2. Resident Household Characteristics COMING SOONCOMING SOON

3. Worker/Workplace Data3. Worker/Workplace Data UNDER DEVELOPMENTUNDER DEVELOPMENT

ACS Data ProfilesACS Data Profiles

Mode to work by Vehicles AvailableMode to work by Vehicles Available

Vehicles Available in HouseholdsVehicles Available in Households

Household Size by Vehicles AvailableHousehold Size by Vehicles Available

Vehicles Available by Workers in Household Vehicles Available by Workers in Household

Persons in Households by Workers in HouseholdPersons in Households by Workers in Household

The Nation, States, All PUMAs,The Nation, States, All PUMAs,Counties and Places over 65kCounties and Places over 65k

Resident Household Characteristics Resident Household Characteristics COMING SOONCOMING SOON

2000 2005 ACS

15,593,433 17,382,511

6,341,120 7,048,800

2.46 2.47

1.59 1.66

Selected Characteristics1

Total Persons in Household

Total Households

Average Household Size

Average Vehicles per Household

DraftDraft

States, Counties and States, Counties and (hopefully)(hopefully) Places over 65kPlaces over 65k

Worker / Workplace DataWorker / Workplace Data UNDER DEVELOPMENTUNDER DEVELOPMENT

Total WorkersTotal Workers

Travel Time to workTravel Time to work

Mode to WorkMode to Work

EtceteraEtcetera

EtceteraEtcetera

EtceteraEtcetera

www.TRBcensus.com

http://www.TRBcensus.comhttp://www.TRBcensus.com

Other TidbitsOther Tidbits

NCHRP 8-48 GuidebookNCHRP 8-48 Guidebook Using the American Using the American Community Survey Data for Transportation Planning Community Survey Data for Transportation Planning ($350K)($350K)

Census Bureau ACS Data Users Training CDCensus Bureau ACS Data Users Training CD

NCHRP 8-36 Project NCHRP 8-36 Project Disclosure Avoidance Disclosure Avoidance Techniques to Improve ACS DataTechniques to Improve ACS Data ($75)($75)

NCHRP Proposal --- NCHRP Proposal --- Reconciling Differences Reconciling Differences Between ACS and Other Data Sources Between ACS and Other Data Sources ($300K)($300K)

Other Tidbits ContinuedOther Tidbits Continued

Florida CTPP Computer Lab and Workshop, Florida CTPP Computer Lab and Workshop, March 27March 27thth and 28 and 28thth 2007 2007

Census Geography and Participant Statistical Census Geography and Participant Statistical Areas Program—Defining TAZsAreas Program—Defining TAZs

CNSTAT, Panel on Functionality and Usability of CNSTAT, Panel on Functionality and Usability of Data from the American Community Survey Data from the American Community Survey Report, under reviewReport, under review

Ed ChristopherEd ChristopherResource Center Planning TeamResource Center Planning Team

Federal Highway Administration Federal Highway Administration 19900 Governors Drive19900 Governors Drive

Olympia Fields, IL 60461Olympia Fields, IL 60461

708-283-3534708-283-3534edc@EdTheFed.comedc@EdTheFed.com