Hi John, and everyone else- 1. If you need a SHORT extension to submitting your TAZ and TAD boundaries, please contact the Census Bureau Geography Staff IMMEDIATELY. 301-763-1099 email: geo.taz.list(a)census.gov 2. What if your TADs have less than 20,000 residential population? The goal is to define a geographic unit that will pass the Census Bureau's 3-year tabulation geography threshold (20,000 population). This way, after the 2006-2010 (5 year) CTPP is delivered to AASHTO, there is a potential to request another 3-year CTPP tabulation sometime in the future using TAD. Right now, the geographic unit in the 3-year CTPP is limited to PUMA, County and Place with 20,000 population or more. This is not very useful for large cities. Elaine Murakami FHWA Office of Planning 206-220-4460 From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of John M. Sharp - ACOG Sent: Tuesday, June 28, 2011 10:37 AM To: ctpp-news(a)chrispy.net Subject: [CTPP] RE: TAZ delineation update Being a little slow on the TAZs. However, a question on the TADs. What do we lose (data wise) if we have some TADs that total only 15,000, rather than the 20,000? Thanks, John From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Elaine.Murakami(a)dot.gov Sent: Thursday, June 16, 2011 2:49 PM To: ctpp-news(a)chrispy.net Subject: [CTPP] TAZ delineation update Over 100 agencies have ALREADY submitted their files to the Census Bureau Geography Division, with at least 10 agencies submitting files today (June 16). The CB GEO staff have found that the TAZ files look pretty good, and although there are some TAZs that look "too small" these are often in areas with parks or water areas. They also said that the TADs look VERY good, with very good adherence to the 20,000 population threshold. Thank you to everyone! I know the rest of you who are participating in the program are working very hard to complete this task. Getting the TAZ and TAD into Census TIGER is one step for the CTPP 5-year tabulation. This tabulation will use ACS records from 2006-2010. AASHTO is expected to submit the 5-year table list to the Census Bureau's Disclosure Review Board this July. Re: TAZ, don't call me J, please call the Census Bureau Geography Division at 301-763-1099. Email: geo.taz.list(a)census.gov Elaine Murakami FHWA Office of Planning 206-220-4460

Does this mean that there will be another 3-year CTPP special tabulation? If so, when is due to come out? What if I have TADS smaller than 20,000? Will I get the 5-year CTPP data tabulated for my smaller than 20K TADs? Or put another way, can I delineate TADs that have less than 20,000 residents and still get 5-year CTPP tables reported for them? -- Ed Christopher FHWA Resource Center Planning Team 4749 Lincoln Mall Drive, Suite 600 Matteson, IL 60443 708-283-3534 (V) 708-574-8131 (C)