Hi, Steve I have attached one of the cheat sheet that we have developed. The cheat sheet illustrates how to get the Tract flows for two counties. You will just replace tracts by TAZ in your case. Hope you find this helpful. The CTPP 2006-2010 flat file are available here: ftp://ctpp.beyond2020.com/ Different from CTPP 2006-2008 and CTPP 2000 raw data, the CTPP 2006-2010 raw data compile all geographies together and it may take some time to get the information that you want. Liang ________________________________________ From: ctpp-news-bounces(a)chrispy.net [ctpp-news-bounces(a)chrispy.net] on behalf of Steven Farber [Steven.Farber(a)geog.utah.edu] Sent: Tuesday, November 12, 2013 12:03 AM To: ctpp-news(a)ryoko.chrispy.net Subject: [CTPP] TAZ-TAZ Flow Matrix Hi All, Based on your experiences with the 20/20 software so far, what would be the best (meaning fastest) way to obtain a TAZ-TAZ O/D matrix for all TAZ’s in Weber, Davis, Salt Lake and Utah Counties. I want all trips originating and ending in those 4 counties. Anyone care to put forward the fastest way of doing a query such as this? Ultimately, I will be processing the data for all metro regions in matlab or python, so it would be great if the data came in a 4 column table: origin, destination, flow, MOE. For the 2000 data, I used to just download the flat files state by state. Is this option no longer available for the 5-year ACS data? Many thanks, Steve Steven Farber, Ph.D Assistant Professor Department of Geography University or Utah http://stevenfarber.wordpress.com