I think Tom Krenzke means Census TAZs for “your region”, not the nation.  Tom is looking for several examples to use for testing disclosure proofing algorithms at the U.S. Census Bureau.  This is part of NCHRP Project 08-79 on “Producing Transportation Data Products from the American Community Survey that Comply with Disclosure Rules.”  Any help is appreciated.

Thank you…

Nanda

From: ctpp-news-bounces@chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Tom Krenzke
Sent: Tuesday, February 23, 2010 6:13 PM
To: ctpp-news@chrispy.net
Subject: [CTPP] Aggregating Census TAZs

Has anyone tried aggregating Census TAZs for the nation into something larger (e.g.,  20K in population) that still makes sense for transportation planning (e.g., corridors, MIS, Districts, planning areas etc.)? Or do you have an algorithm that combines TAZs?  If you do, would you have a correspondence file to share with us, and the purpose for which this aggregation was made?

Thanks,

--Tom Krenzke

Westat