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:
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.
From: ctpp-news-bounces(a)chrispy.net [ctpp-news-bounces(a)chrispy.net] on behalf of Steven
Sent: Tuesday, November 12, 2013 12:03 AM
Subject: [CTPP] TAZ-TAZ Flow Matrix
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?
Steven Farber, Ph.D
Department of Geography
University or Utah