RE: [CTPP] Census Geography Question

I'm working on a statewide travel demand model for North Carolina DOT and had to deal with this. The best method I could come up with is to use Census 2000 Tabulation Block to 2010 Census Tabulation Block relationship files. http://www.census.gov/geo/www/2010census/t00t10.html The files show you the relationship between 2000 and 2010 blocks (one-to-one, one-to-many, many-to-one, and many-to-many) but more importantly how much area of the 2000 block is in the 2010 block. So you can use this to redistribute your 2000 block data to 2010 geography using the percent area (or reverse the process if you want 2010 data in 2000 geography). Feel free to contact me directly if you are interested in learning more about this process. Todd steiss(a)pbworld.com 704-342-5411 -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Ed Christopher Sent: Tuesday, December 06, 2011 7:44 PM To: ctpp-news(a)chrispy.net Subject: [CTPP] Census Geography Question Today i got this question from an MPO friend of mine and was hoping others on the list could help me. Anyone experiencing similar issues. ------------- Ed We have experienced the frustration of block boundaries between the 2000 Census and the 2010 Census being dramatically different within our urbanized area. Our GIS experts have had a difficult time assembling and reconciling the differences in order for us to simply compare data on a block-by block basis. Do you know if this is unique to us or are we in the same boat as others? -- Ed Christopher FHWA Resource Center Planning Team 4749 Lincoln Mall Drive, Suite 600 Matteson, IL 60443 708-283-3534 (V) 708-574-8131 (C) _______________________________________________ ctpp-news mailing list ctpp-news(a)chrispy.net http://www.chrispy.net/mailman/listinfo/ctpp-news ______________________________________________________________________ NOTICE: This communication and any attachments ("this message") may contain confidential information for the sole use of the intended recipient(s). Any unauthorized use, disclosure, viewing, copying, alteration, dissemination or distribution of, or reliance on this message is strictly prohibited. If you have received this message in error, or you are not an authorized recipient, please notify the sender immediately by replying to this message, delete this message and all copies from your e-mail system and destroy any printed copies.