Ed Christopher Resource Center near Chicago Federal Highway Administration Governors Drive Olympia Fields, IL

In this Module Overview Census 2000 with a Transportation Focus

Census 2000 Short Form and Long Form Short form Long form

Census 2000 Short Form Questionnaire 7 Questions Name Name Sex Sex Age Age Relationship Relationship Hispanic Origin Hispanic Origin Race Race Owner/Renter Status Owner/Renter Status

For the U.S. as a whole, about one in six households received the long-form questionnaire. Census 2000 Long Form Sampling Pattern 17%

Transportation Related Questions Long Form Place of Work Means of Transportation to Work Carpool Occupancy to Work Departure Time for Work Travel Time to Work Vehicles Available    

What Data is Available? 100% data or SHORT-FORM data Redistricting Summary File (PL Data)Redistricting Summary File (PL Data) Summary File 1 (SF1)Summary File 1 (SF1) Summary File 2Summary File 2 Sample or LONG-FORM data Summary File 3 (SF3)Summary File 3 (SF3) Summary File 4Summary File 4

Public Use Microdata Sample (PUMS) Unaggregated responses to Census 2000 with all identifying information removed –1-Percent National Characteristics File –5-Percent State Files 100,000 population threshold for geography100,000 population threshold for geography 10,000 population threshold for characteristics10,000 population threshold for characteristics

California PUMAs (5%) and Super-PUMAs (1%) 5-Percent 1-Percent 62 super- PUMA 233 PUMAs

Bay Area PUMAs (5%) and Super-PUMAs (1%) 54 PUMAs 12 super- PUMAs

Typical Products We Use PL % Pop, Age, Race (Blocks) Summary File 1 (SF1) 100% Pop, Age, Race, Household size, owner/renter (Blocks) More Geography than PL171 Summary File 3 (SF3) 17% All Variables, (Block Group) Public Use Micro Series (PUMS) 5% of SF3 Individual Records (Big Zones )

Media  Internet  CD-ROM /DVD  Paper

The Transportation Data Now for a Slight Gear Change Census Transportation Planning Package

What is CTPP 2000? The Census Transportation Planning Package 2000 is a set of special tabulations from the long form of the decennial census designed by transportation planners for transportation planners It summarizes the data At Residence At Workplace Flows between Home and Work

Who developed it? It was guided by a Working Group USDOT (FHWA, BTS, FTA and OST) Census Bureau (Migration and Geography Divisions) AASHTO States and MPOs TRB Subcommittee on Census Data www. TRBcensus.com CTPP 2000 was a product of the states and MPOs funded through an AASHTO Pooled Fund Project

Who paid for it? Buyers/Users Direct Cost Tables 1960OMB?????? $0.6 M $2.0 M $2.5 M $3.0 M 203 All States and MPOs and MPOs

What are the CTPP 2000 Products? Tabulations at Residence Tabulations at Workplace Flows between Home and Work Main CTPP 2000 Products Collateral Products State and County Profiles  State and County Profiles  County Flow Data

CTPP 2000 Main Products Tabulations at Residence Tabulations at Workplace Flows between Home and Work Part 1Part 2Part 3 Part 1Part 2 Part 3

When was it released? Residence Based Tables Oct 2002 Mar. 03 April June July-August 2003 June July-August 2003 CTPP 2000 cames out in 3- waves Residence, Workplace and Worker Flows Workplace Spring / Summer 2004 Summer 2003 Fall Worker Flow Tables Winter ____ Spring Summer

Why all the delay? Disclosure Review Board Negotiations (Sept 2001 to Jan 2002)--- 5 months People Living in Group Quarters Issues (Jan to May 2003)--- 5 months Part 3 Software Issues (Sept ‘04 to ???)--- 9+months Inexcusable delays caused by CB on whether or not 13 tables in CTPP 2000 Part 1 could be released. Finally, CB allow all but 3 Tables originally identified… Dave Clawson, AASHTO

Why the 2003 Delay? Group Quarters Issue Fear by Census Bureau that one could identify the “characteristics” of workers who live in group quarters by subtraction SF3--Workers who live in Households and Group Quarters CTPP Workers who live in Households Workers who live in Group Quarters - = Modes Used Modes Used Modes Used

The CAT CTPP Access Tool How is it packaged? ASCII Too

What was the Distribution Process? CDs with Extraction Software To MPOs and States First (ASCII also available ) 30 Day review period Corrections made Corrections made Quantities prepared and redistributed BTS (and others) distribution program(s)

MPO - State Note Feel free to copy and distribute the data to your member agencies and others The are no copyright or licensing provisions

Is there be Training? Yes! Sort of

Provides all basics on understanding, using and working with the CTPP data in a transportation planning context

What is it?  Self-Paced, Individualized Training  CD-Rom Based  Loaded with Animations  Fun yet Informative  Less than 5-Hours to Complete  Chock Full of Information

MPO-State Note Feel free to copy and distribute the data to your member agencies and others The are no copyright or licensing provisions

Where do I get the CTPP 2000 Data?

What are we Getting? Let’s Look at the Details So how does this thing work?

Tables—Lots of Tables 121 Tables of Residents’ Based Data 68 Tables of Work Place Data 68 Tables of Work Place Data 14 Tables of Flow Data 14 Tables of Flow Data

Variables-- Lots of Variables Variables-- Lots of Variables Journey-to-Work Work Location and Mode Departure and Travel Time Arrival Time (Calculated)Household Income Nos. Vehicles Available Size and Nos. Workers Person Worker Status Age, Sex, Race, Hispanic Origin, Disability Workers

What is a “Universe”?

Sample Table List

SF3CTPP 2000 Travel time to Work (4) by Means of Transportation (2) Travel time to Work (15) by Means of Transportation (10) Tenure (2) by Vehicles Available (6) Vehicles Avail (5) by Hhld Income (25) Vehicles Avail (5) by Nos. of workers in hhld (5) AND MORE Comparing SF3 to CTPP 2000

One-Way Household income in 1999 (11) Two-Way Sex (3) by Age (12) Three-Way Household size (5) by Vehicles available (6) by Household income (11) Four-Way Vehicles available (3) by Hispanic origin (3) by Race of person (5) by Means of transportation to work (8) Sample CTPP Cross Tabulations

Sample Variable List NOTE: Age has 3 levels, clusters or elements

Disclosure Review Board

Mode to Work Circa 1990 For 2000 (ROUNDED) Total (not 355!) Drive Alone Carpool4645 Transit5960 Walk3335 Bike24 Example of Rounding True Total 354

No record threshold Must have 3 unweighted records

Stay Connected Are You on the CTPP-News Listserve? Have You Seen our Newsletter (the Status Report)?

When Mining Your Census Data Keep us in Mind Let Us Know What You Have Done We Are Always Interested Want to… Want to…  Show Off Your Work?  Gain National Exposure?  Meet Other Data Users?  Tour Washington DC? Sound Exciting? TRB Urban Data and Information Systems Committee Ed Christopher-Chair ( )