[CTPP] RE: Question about PUMS data and Geography

Martin, Rather than PUMS data, I would suggest you check out the LEHD data available through the Census website. Go to www.census.gov, then click on Local Employment Dynamics in the Business and Industry section. That will take you to the LEHD website. On the right side are a list of links. VirtualRDC will get you to a location that will explain how to download and use the LEHD data. This is data connects home locations-work locations based on data available from other sources. It is supposed to essentially include all employment except work-at-home, so it is a strong data set. Depending on what you are trying to illustrate, On The Map may suffice. You can find it on the LEHD website as well. Mark Filipi, AICP PTP Manager, Technical Planning Support Metropolitan Transportation Services Metropolitan Council 390 Robert Street North St. Paul, MN 55101-1805 651-602-1725 Fax: 651-602-1739 -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Catala, Martin Sent: Wednesday, March 25, 2009 2:38 PM To: ctpp-news(a)chrispy.net Subject: [CTPP] Question about PUMS data and Geography Hello, I am looking to create some commute flow maps and I think I remember someone mentioning (between all the please remove me from this list e-mails) that flow maps can be created by using ACS data and the PUMS geography. I was at the Census site trying to download the PUMS geography files and found that there were two types 1% and 5%. Does anyone know which geography file I should use? The 1% or the 5%? Thanks in advance, Martin Catala GIS Manager CUTR _______________________________________________ ctpp-news mailing list ctpp-news(a)chrispy.net http://www.chrispy.net/mailman/listinfo/ctpp-news