1. FHWA Planning Data Resources: Census Data Planning Products (CTPP) HEPGIS Interactive Mapping Portal
Jeremy Raw, P.E. FHWA, Office of Planning, Systems Planning and Analysis
August 2017

2. Outline Census Data Planning Products (CTPP)
Future Data: ARNOLD and TMAS Bicycle/Pedestrian Counts
HEPGIS Online Data Explorer

3. What is the CTPP?
A set of special tabulations designed by transportation planners using large sample surveys conducted by the Census Bureau 
Decennial Census
Historic Urban Transportation Planning Package (UTPP): 1970 UTPP, 1980 UTPP, 1990 UTPP
2000 CTPP
American Community Survey
CTPP, CTPP (Current)
Future products – CTPP (late 2018)
The CTPP is a set of special tabulations designed by transportation planners using large sample surveys conducted by the Census Bureau.
-From 1970 to 2000, the CTPP and its predecessor, UTPP, used data from the decennial census long form. The decennial census long form has now been replaced with a continuous survey called the American Community Survey (ACS). Therefore, the current CTPP uses the ACS 5-year sample for the special tabulation.

4. American Community Survey (ACS)
Background info about Decennial Census:
The ACS replaced the decennial census “long form” and requires accumulation of data over multiple years for small area tabulation
The Census Bureau used two different forms to collect Census 2000 data.
A short form with seven basic questions went to all households and a long form with these same questions and additional questions went to a sample of households.
The information that is tabulated from the questions asked of every person and housing unit is called the 100-percent or short-form data.
The long-form questionnaire included the same seven population and housing questions plus additional inquiries. This is called either the sample data, or the long-form data.
DEFINITIONS:
100% Data - Population and housing information collected for all living quarters in the United States.
Census - A complete enumeration (count) of a population or the business and commercial establishments, farms, or governments in an area.
Long form - The decennial census questionnaire containing 100 percent and sample questions.
Sample data - Detailed social, economic, and housing information collected on the long form from a selected portion of all housing units and people living in group quarters. The 1990 census sampled approximately 15 percent of the nation's population and 16 percent of its housing units. See 100 percent data.
Short form - The decennial census questionnaire containing only the 100 percent questions.

5. What’s in CTPP? Data on Households Data on Workers
Size, income, vehicles per household
Data on Workers
Age and gender, occupations, earnings
Data on Journey to Work
Usual mode to work, commuting time, work departure time
Data on Workplaces
Work locations, times of arrival at work

6. Geographies and Structure
Residence Based (Part 1)
State
Minor civil division (MCD)
Place
County
Metropolitan Statistical Area
Metropolitan Statistical Area – Each Principal City
Public Use Microdata Areas (PUMA)
Urban Area
Tract
Traffic Analysis District (TAD)
Traffic Analysis Zone (TAZ)
Workplace Based (Part 1)
Place of Work (POW) State
POW MCD
POW Place
POW County
POW Metropolitan Statistical Area
POW Metropolitan Statistical Area – Each Principal City
POW PUMA
POW Urban Area
TAD
TAZ
Work Flow
State – State
State – County
County – County
PUMA – PUMA
Tract – Tract
TAD – TAD
TAZ – TAZ
MCD – Minor civil division
PUMA – Public Use Microdata Areas:
Public Use Microdata Areas (PUMAs) are statistical geographic areas defined for the dissemination of Public Use Microdata Sample (PUMS) data.  Contain at least 100,000 people
TAD – Traffic Analysis District
TAZ- Traffic Analysis Zone
POW – Place of Work
Why no smaller geography?
In order to balance geographic resolution, temporal frequency, statistical significance, and respondent privacy, the CTPP geography is available at TAZ level (317,526 in total). - the resolution of TAZ geography is similar to the smallest geography (block group) available in ACS, which has in total 220,334.

7. Metropolitan Statistical Area (MSA)
Geographies
PUMA
Metropolitan Statistical Area (MSA)
County
Work Flow
STATE
Maps in order are:
-State
-Metropolitan Statistical Area (MSA)
-County
- PUMA

8. Geographies TAZ TAD TRACT Maps in order are: Tract (eg. In DC)
Traffic Analysis District (TAD) (eg. In DC)
TAZ (eg. In DC)

9. ftp://data5.ctpp. transportation.org/
Accessing CTPP Data
Website
ctpp.transportation.org
FTP
ftp://data5.ctpp. transportation.org/
Training
Free
No log in required (but useful and recommended)
350GB of data
Produced inexpensively…

10. Analyzing Commuter Flows
Santa Barbara – State of the Commute Report
Summarizes commuter origin and destination
Travel mode
Travel time
Employment by economic sector
Using
Residence based (part 1)
Workplace based (part 2)
Flow (part 3)
CTPP map tools
CTPP chart tools
In Santa Barbara, the Santa Barbara County Association of Governments periodically produces a State of the Commute Report. The report summarizes commuter origin and destination information, and includes comparisons of travel mode, travel time, and employment by economic sector, helping transportation planners and decision makers understand trends, markets, and regional commute dynamics. The report is produced with residence based, work place based and flow data from CTPP along with a variety of other data sources, and many graphics in the current iteration are produced with CTPP mapping and chart tools.
Full Report: 2/4/5/4/ /state_of_the_commute_ summary_full_report_final.pdf

11. Los Angeles – Visualizing Work Trips
Helped stakeholders visual spatial interactions of small areas
Increased public interest and participation
The Southern California association of governments discovered that presenting the data in this visual way, along with the ability to target for specific groups of stakeholders, helped those stakeholders better understand the spatial interactions among small areas. As a result, the public took a greater interest in transportation planning and participation in the process.
Full Report: status_report/sr0415/index.cfm

12. Other Demographic Analysis
Roadway corridor demographics
Demographic Profiles
CTPP data are often used to analyze race, poverty, population, and travel methods for corridor analysis, with specific attention paid to the transportation disadvantaged. The National Capital Region Transportation Planning Board and Colorado Department of Transportation both created data summaries or profiles based on CTPP data and made them available to the public.

13. Next CTPP (Available 2018) 2012-2016 CTPP
Same Structure as 2006 to 2010 CTPP
No TAZ changes
Available Late 2018
Reduce table request by 66% as compared to to 2010 product
Limit the number of tables at small geography (TAZs and Tracts)

14. Highway Performance Monitoring System (HPMS)

15. FHWA New Data Sources
ARNOLD – All Roads Network Of Linear-referenced Data
Consistent resource for spatially organizing roadway data
E.g. crash sites
E.g. Highway Performance Monitoring System count reports
TMAS – Traffic Monitoring Analysis System
All automatically recorded vehicle counts (e.g. loop detectors)
Submitted by states
Limited coverage, but very detailed where available
Soon will allow upload of bicycle and pedestrian counts

16. FHWA Environment and Planning Web-based GIS Portal (HEPGIS)
What it is
Browser-based map explorer for Planning Data
Download a variety of data sets (or link to their “home”)
Where to get it
HEPGIS:

17. FHWA Web-Based GIS Maps http://hepgis.fhwa.dot.gov/fhwagis/
View GIS Maps using only a web-browser
Highway Information - National highway network, 1991 Federal Aid Primary System (for outdoor advertising control), HPMS AADT, National Network of Truck Routes, National Primary Freight Network, and Federal Lands.
Fatal Crashes Maps – All Fatal Crashes, Pedestrian and Cyclist Crashes.
MPO Boundaries – Urban areas, TMAs, MPO Boundaries; and 7 Criteria Pollutant Air Quality Maps
Demographic Information – 2000 and 2010 population, minority population and unemployment rates
Megaregion Research – 6 Megaregion maps showing GDP, travel time index, freight origins & destinations, freight volumes,
Freight Analysis Framework – FAF3 Fright Origin-Destination desire-line maps and network flows. These maps will be updated to show FAF4 data within next 3 months.

18. FHWA Web-Based GIS Maps http://hepgis.fhwa.dot.gov/fhwagis/

19. FHWA Web-Based GIS Maps http://hepgis.fhwa.dot.gov/fhwagis/

20. FHWA Web-Based GIS Maps

21. Penelope Weinberger (AASHTO)
Questions
Jeremy Raw (FHWA)
Joe Hausman (FHWA)
CTPP Support
Penelope Weinberger (AASHTO)
JJ Zang (Tech Support)