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Census Transportation Planning Products (CTPP): A Comprehensive Resource for Transportation Planning

The Census Transportation Planning Products (CTPP) offers a wide range of data products for transportation planning needs. It includes special tabulations, standard tables, and value-added products derived from Census data.

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Census Transportation Planning Products (CTPP): A Comprehensive Resource for Transportation Planning

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  1. Census Transportation Planning Products (CTPP) Ed Christopher Resource CenterPlanning Team Federal Highway Administration 19900 Governors Drive Olympia Fields, IL 60461 708-283-3534 edc@EdTheFed.com Today’s Slides http://edthefed.com/

  2. What’s Covered • The “NEW” CTPP • Consolidated Purchase • AASHTO Oversight Board • Work Program - Data Products • Resources • General • Data

  3. Flows between Home and Work At Workplace At Residence “Long Form” to ACS 1960 OMB Journey-to-Work Tables 1970 and 1980 Urban Transportation Planning Package (UTPP) 1990 and 2000 Census Transportation Planning Package (CTPP)

  4. Past Journey to Work data All States and MPOs

  5. The past Transportation data packages were unique because of the summary levels, geography, universes and data tables. The packages have always been designed by transportation planners for transportation planners Data Summary Levels Why packages were so special

  6. 2000 BTS Product Distribution Center 1990 and 2000 BTS TranStats 1980 Try the MPO 1970 Try the MPO 1960 Good Luck http://www.transtats.bts.gov/ Call a Friend Where do you get the data https://www.bts.gov/pdc/

  7. Enter the ACS era… Census Transportation Planning Products 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 CTPP as a place to look for Census Data products to help with your Transportation needs

  8. How did we get where we are? AASHTO Standing Committee on Planning (SCOP) gets involved May 11-13, 2005, TRB Census Data for Transportation Planning Conference ftp://ftp.camsys.com/clientsupport/CTPPdata/Conference/index.html 2005 SCOP Census Data Working Group April 10-11, 2006, SCOP Workshop on Priority Census Data Uses and Needs For Transportation http://trbcensus.com/SCOP/docs/workshop_report.pdf May 10-11th 2007, SCOP ACS Capacity Building Peer Exchange http://trbcensus.com/SCOP/docs/acs_peer_exchange_may2007.pdf http://trbcensus.com/SCOP/

  9. Results of 2006 Workshop lAll States + DC lAASHTO Led lOversight Board lFive Year period ~ 2011 Federal Technical Advisory Group TRB Subcommittee -- List Serve (700 strong) Quarterly Newsletter -- Outreach Several Websites

  10. Who paid what

  11. AASHTO CTPP Oversight Board (ACOB) MPOs Kuo-Ann Chiao, NYMTC Jerry Duke, RTC Vegas Steven Gayle, BMTS Mell Henderson MARC Arash Mirzaei, NCTCOG Guy Rousseau, ARC Vacant Vacant Chair: Mary Lynn Tischer, VA (Region II)Vice Chair: Jonette Kreideweis, MN (Region III) AASHTO Liaison:Penelope Weinberger 17 voting members: 9 states and 8 MPOs Consensus Decision Making Ex Officio Members Ed Christopher, FHWA Melissa Chiu, Census Bureau Alison Fields, Census Bureau DeLania Hardy, AMPO Elaine Murakami, FHWA Robert Padgette, APTA Alan Pisarski, Consultant Steven Polzin, USF. CUTR Nanda Srinivasan, TRB John Sprowls, FTA States Vacant, (Region I) Nathan Erlbaum, NY (Region I) Hui Wei Shen, FL (Region II) Mike Thomas, GA (Region II) Phillip Mescher, IA (Region III) Ahmad Jaber, UT (Region IV) Ayalew Adamu, CA (Region IV

  12. ACOB First Meeting August 5-6, 2008 Approved Work Program Program Management -- Staff up Census Data Tabulations 3- and 5-year data products TAZ creation Training and Technical Assistance Research Approved FHWA-CB IAA for $1.19 million

  13. Staff Additions Penelope Weinberger CTPP Program Manager, AASHTO 444 North Capitol Street NE Suite 249 Washington, DC 20001 202-624-3556 pweinberger@aashto.org http://ctpp.transportation.org Melissa Chiu CTPP Contractor Censu Bureau 301-763-2421 or (2454) melissa.c.chiu@census.gov

  14. X Data Tabulations (a year ago) Feb 6, 2008 3-year Table Request Submitted

  15. 3-year Product Hits Snag Disclosure Review Board All Tables rounded like 2000 No thresholds on Univariate Mode tables Cell thresholds on all Mode by “X” tables Tables with failing cells will be suppressed Includes all Resident and Workplace tables Worker flows by Total Workers and Flows by Mode [8] no thresholds

  16. The CORE Issue CTPP Tables link toPUMS Records 1. Find unique traveler and build pseudo microdata record with all the crosstabs 18 variables 20K population area 2. Add additional variables to pseudo microdata record 150 variables 100K pop. zone => 3. Take new 20,000 Pop area Frankenstein record 4. Match it to files on Internet 5. Produce a person’s name, address and vitals 100 Main St, Fairfax VA

  17. AASHTO appealed, and lost Feb 5, 2008 : Submitted 3-year CTTP Data request Feb. 14: Staff email suggests new DBR rules Mar. 12: New DRB rules received March-April: Discussed with community May 2: Sent response to DRB May 12: Met with full DRB June 2: AASHTO files appeal August 5: FHWA sends support letter August-Sept: FTA, COPAFS, others? support August 28: Appeal heard Sept 19: Appeal formally rejected Oct 18: Discussions at AASHTO SCOP, ACOB April 1, 2009: New Table request submitted http://trbcensus.com/drb

  18. Census Data Tabulations April 1, ‘09 New 3-year Table Request Submitted

  19. 2000 Geography Product Structure 3-Parts Part 1-Place of Residence Part 2-Place of Work Part 3-Flows between Home and Work (Extraction Software) Nation (US Total) State State-County State-County-MCD State-Place State-PUMA State-POW PUMA Metropolitan Statistical Area MSA – EACH Principal City The 3-year Product Design

  20. 3-year Product Detail Submittal Letter http://trbcensus.com/aashto/docs/CTPP_3-year_table_request.pdf Table Detail http://trbcensus.com/aashto/docs/CTPPtables-09apr01-1.xls • Collapsed Mode to Work • Reduced Mode to Work Crosstabs to 5 variables • Increased Flows by Mode from 8 to 11 modes http://www.dot.gov/ctpp Also at

  21. Collapsing Schema

  22. Modal Crosstabs “Too many” cross-tabulations byMeans of Transportation (Mode) • Age • Sex • Class of Worker • Disability status • Earnings • Household Income • Poverty status • Industry • Occupation • Length of U.S. residence • Minority Status (Y/N) • Time Leaving Home • Time Arriving (Part 2) • Travel Time • Vehicle Availability • Workers in Household • Age of Youngest Child …makes for micro data record

  23. The 3-year Product Summary

  24. 5-year Data Product

  25. 5-year Data Product Key product to the whole CTPP effort Likely to be all synthetic Hinges on some key research NCHRP Project 8-79($500K) Identifying Credible Alternatives for Producing 5-year CTPP Data Products from the ACS http://trbcensus.com/notes/NCHRP_CTPP_Data_Proposal_Oct2008.pdf

  26. Will there be Census TAZS? TAZs (Traffic Analysis Zones) What we were planning a year ago

  27. But why the Change? Where we are at today? • Developed in late 2008 and early 2009 Summer 2011 • All zones would nest within each larger zones and Counties • GIS approach similar to (PSAP) equivalency process • Funded under Consolidated Purchase http://trbcensus.com/notes/ACSTAZs.pdf

  28. Resources to Consider

  29. TRB Census Subcommittee www.TRBcensus.com

  30. USDOT (FHWA) Website http://www.dot.gov/ctpp

  31. AASHTO Website http://ctpp.transportation.org

  32. CTPP List Serve http://trbcensus.com

  33. Status Report http://www.fhwa.dot.gov/ctpp/status.htm http://www.trbcensus.com/newsletters.html

  34. The 3-year Product http://www.trbcensus.com/aashto/index.html

  35. New Profiles Coming Soon Trend Data 2000 and 3-year ACS Includes MOEs and significance tests Keys on Transportation Variables Summer 2009

  36. Research Efforts Report 588 Using ACS for Transportation Planning (9/06) 08-36(63) Making NAICS Work for Transportation (March 2007) 08-36(71) Disclosure Avoidance Techniques to Improve ACS Data Availability (5/09) 8-36(81) Enhancing the ACS as a Source for Home-to-Work Flows (10/09) www.trb.org/CRP/NCHRP/NCHRPProjects.asp?AreaID=8

  37. Research Efforts NCHRP Project 8-79($500K) Identifying Credible Alternatives for Producing 5-year CTPP Data Products from the ACS Workplace Allocation-- Research and Implementation ($250K) Imputation of Vehicle Ownership and Means of Transportation (Done)

  38. http://www.dot.gov/ctpp http://www.TRBcensus.com 202-366-5000 Ed Christopher 708-283-3534 edc@EdTheFed.com Today’s Slides http://edthefed.com/

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