Update on the 5-year CTPP - ctpp-news

17 May 2013

Hi All,

The CTPP five year data product is coming, here is some information on it.  Updates and
info will be published at: http://ctpp.transportation.org/Pages/5-Year-Info.aspx

What:
CTPP based on 5-year ACS - 2006 - 2010; residence based, workplace based, and flow data
for geographies ranging from the Census TAZ or tract to the nation.
Tables include means of transportation univariate and crossed with travel time, household
income, vehicle availability, age, time leaving home, and (new) presence of children,
minority status, number of workers in household and median household income.  A complete
list of available tables can be found here:
http://ctpp.transportation.org/Pages/5-Year-Info.aspx
There are plans for an API, and plans to download large files (entire states, for example)
are under development.

How:
A new data access software is being developed for the 5-year data, it will include the
3-year data, and eventually, we hope to include both older and future data sets, so they
can be found in one easy place.  The software will allow for table manipulation - so you
can get a table looking the way you like before download, download formats will include
tables, .shp files, .gml and .TAB files.  The software has a robust mapping component.

When:
A fully executed product is expected around August 2013.  As of this writing, the US
Census Bureau has delivered data to the software vendor and the vendor is processing it.  
Beta testing of the data and software is scheduled to begin in June with comments and
modifications processed in July.

Please feel free to contact me on or off list with any questions.

Penelope Z. Weinberger
CTPP Program Manager
AASHTO
202-624-3556
ctpp.transportation.org