Hi Diana - I thought I had responded to your query, but I was looking at
the listserv archive and saw that it was not answered on the CTPP
listserv.
The current expectations are that the CB would deliver to AASHTO a CTPP
5-year file (with TAZ and TAD as tabulation geography) by December 31,
2012. But, then, AASHTO would need to work with someone for web-based
data access. For the CTPP 2006-2008, Beyond 2020 is the main
contractor. From the time the CB delivered the CTPP 3-year file, it
took over 4 months to get the data on the AASHTO website, but there was
a steep learning curve, and the CB did not supply any TEST data for the
software developer to use, only empty table shells. Being an
optimist, it would presumably take less than 4 months in the next
iteration, however, the very large number of TAZs and census tracts are
likely to give any software vendor a headache, especially with the flow
tabulations (Part 3).
Elaine