ctpp-news December 2010

ctpp-news@mailman.chrispy.net

21 participants
12 discussions

2009 TIGER/Line Shapefiles released today; info on 2010,TIGER/LineShapefiles

by Ed Christopher

FYI--Besides the 2009 Tiger Files it looks like we will have the new 2010 Files before the 2010 Block population counts come out in around March of 2011. This is good news. Just yesterday I was in a meeting where the question came up. ================== The Census Bureau has released 2009 TIGER/Line Shapefiles today. Available here: http://www.census.gov/geo/www/tiger/ This will be the last public release of TIGER data until early 2011. This early 2011 release will include all of the updated 2010 tabulation geography that serves as the geographic framework for 2010 Census data tabulations (including the new 2010 Census tracts, block groups, blocks, voting districts, and much more). Around the same time as this 2011 geospatial data release, Census will be releasing the tabular data with 2010 Census population counts down to the Census block level. See the attached document for more information, including changes under consideration and a request for input. -- Ed Christopher 708-283-3534 (V) 708-574-8131 (cell) FHWA RC-TST-PLN 4749 Lincoln Mall Drive, Suite 600 Matteson, IL 60443

13 years, 9 months

mode to work by small workplace geographies

by Flintoft, Anna E.

Does anyone know when the census will release mode of transportation to work by smaller workplace geographies than place? I was disappointed that the 2005-2009 ACS didn't have it. Coming up with a work trip mode split for downtown is something people ask us about all the time. Thanks. * * * * * * * * * * * * * * * * * * * * * * * * Anna Flintoft, PTP Transportation Planner Department of Public Works - Transportation Planning and Engineering City of Minneapolis Room 301, City of Lakes Building 309 2nd Avenue South Minneapolis, MN 55401 (612) 673-3885 (office) (612) 269-9410 (cell) anna.flintoft(a)ci.minneapolis.mn.us * * * * * * * * * * * * * * * * * * * * * * * *

13 years, 10 months

FW: [CTPP] ACS 2005-09 comparisons with 2000 SF3

by Elaine.Murakami＠dot.gov

Correction to my earlier email: 2005-2009 ACS Block Group data WILL be released on December 14. From: brian.mckenzie(a)census.gov [mailto:brian.mckenzie@census.gov] Good Afternoon Mara and Elaine, The summary file data (block group level data) will be available on December 14th. You can use American Factfinder as a portal. You will be able to download summary file data via the FTP website at <http://www2.census.gov/acs2009_5yr/summaryfile/ <http://www2.census.gov/acs2009_5yr/summaryfile/> >. There will also be a clickable link next to the familiar portion of AFF in which you select the desired ACS year(s) for which you would like data. Hope this helps. Brian McKenzie Analyst, Journey to Work and Migration Statistics Branch U.S. Census Bureau 301-763-6532 brian.mckenzie(a)census.gov

13 years, 10 months

ACS 5-year Summary File retrieval tool

by Elaine.Murakami＠dot.gov

Hi Everyone-- Brian McKenzie at the Census Bureau provided this information on viewing files in Excel to help those of you when you download the tract or block group data from the "summary file" format, instead of the AFF. Please be sure to share your experiences with analyzing the new 2005-2009 ACS data with the CTPP listserv. Thanks in advance. Elaine ________________________________ From: brian.mckenzie(a)census.gov [mailto:brian.mckenzie@census.gov] The Excel-based retrieval tool that I mentioned yesterday can be access via the following page. Once you http://www.census.gov/acs/www/data_documentation/summary_file/ <http://www.census.gov/acs/www/data_documentation/summary_file/> . Below this link is the user guide. You just download the excel file with the macro built into it onto your hard drive, and you can view any SF table in Excel format rather than having to deal with ASCII files.

13 years, 10 months

Mapping America using ACS2005-2009 from NY Times

by Liang Long

I was reading the NY Times on my way to work today and found out there are a serious of articles about ACS2005-2009. The most amazing thing is that they developed this interactive map at the Census Tract level for the whole nation. The maps show household income, home value, education and race and ethnicity at each tract and also the percentage change from the Census 2000. Here is the link. You got to check this out! http://projects.nytimes.com/census/2010/explorer?ref=us Liang Long Cambridge Systematics, Inc. 4800 Hampden Lane Suite 800 Bethesda, MD 20814 tel 301 347 9141 fax 301 347 0101 FHWA 202-366-6971 e-mail llong(a)camsys.com www.camsys.com

13 years, 10 months

RE: [CTPP] ACS 2005-09 comparisons with 2000 SF3

by Patty Becker

In my opinion, the bureau has absolutely made the right decision in keeping the block group data off of AFF. I recommended this course of action several years ago. The error levels are WAY too high for casual users, and power users can easily download the file and do what they need to do. Patty Becker At 01:01 PM 12/14/2010, you wrote: >The direct answer to Nick is that the block >group data will NOT be posted in American >Factfinder, and will ONLY be available in Summary File format. > >Ed's response was about reasons why the Census chose this differentiation. > >Elaine Murakami >FHWA Office of Planning > > >-----Original Message----- >From: ctpp-news-bounces(a)chrispy.net on behalf of edc(a)berwyned.com >Sent: Tue 12/14/2010 12:24 PM >To: ctpp-news(a)chrispy.net >Subject: RE: [CTPP] ACS 2005-09 comparisons with 2000 SF3 > >This is one of those points of speculation and spin. If you ask the CB >the official line will be that it is so big and contains literally >mountains of tables that it is impractical to serve up with an online >search engine. They will tell you that comments on this were asked for in >the Federal Register and there was not a huge outcry. However, if you >"put your ear to the ground" you will hear some speculate that it is >because the tables are so hard to work with due to confidentiality >suppression and large margins of errors that the CB wanted to keep the >data from the "novice" user. As one noted user put it, "they are putting >the data on the top shelf just out of reach of the kids." > >What would be of use here is for people who have begun to work with it to >share their experiences. > >Form the CB press release today... >The U.S Census Bureau is pleased to announce the release of the 2005-2009 >American Community Survey (ACS) 5-year estimates on American FactFinder. >There you will find tables with social, demographic, housing, and economic >data for areas down to the census tract level. > >You can access the newly-released data on American FactFinder at: >2005-2009 ACS 5-year data >http://factfinder.census.gov/servlet/DatasetMainPageServlet?_program=ACS&_s… > > > > > > > > Does anyone know why the Block Group data is not being released via the > > AFFâ?Ts standard pull-down menus? I was under the impression that today > > (12/14) was the release date for this data. I understand that it is > > available via Summary File, but this is far from user friendly. > > > > > > > > When will the data be available via the AFFâ?Ts standard access method? > > > > > > > > Thank you, > > > > Nick Lindeman > > > > > > > > Nicholas Lindeman > > Economic & Systems Data Analyst > > > > Nashville Area MPO > > 800 2nd Ave. S. > > > > P.O. Box 196300 > > Nashville, TN 37219-6300 > > (615) 862-7198 > > lindeman(a)nashvillempo.org > > http://www.nashvillempo.org <http://www.nashvillempo.org/> > > > > > > > > > > > > > > > > From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] > > On Behalf Of Elaine.Murakami(a)dot.gov > > Sent: Tuesday, December 07, 2010 4:15 PM > > To: ctpp-news(a)chrispy.net > > Subject: FW: [CTPP] ACS 2005-09 comparisons with 2000 SF3 > > > > > > > > Correction to my earlier email: 2005-2009 ACS Block Group data WILL be > > released on December 14. > > > > > > > > From: brian.mckenzie(a)census.gov [mailto:brian.mckenzie@census.gov] > > > > Good Afternoon Mara and Elaine, > > The summary file data (block group level data) will be available on > > December 14th. You can use American Factfinder as a portal. You will be > > able to download summary file data via the FTP website at > > > <http://www2.census.gov/acs2009_5yr/summaryfile/ > > <http://www2.census.gov/acs2009_5yr/summaryfile/> >. There will also be a > > clickable link next to the familiar portion of AFF in which you select the > > desired ACS year(s) for which you would like data. Hope this helps. > > > > Brian McKenzie > > Analyst, Journey to Work and Migration Statistics Branch > > U.S. Census Bureau > > 301-763-6532 > > brian.mckenzie(a)census.gov > > > > > > > > _______________________________________________ > > ctpp-news mailing list > > ctpp-news(a)chrispy.net > > http://www.chrispy.net/mailman/listinfo/ctpp-news > > > > >_______________________________________________ >ctpp-news mailing list >ctpp-news(a)chrispy.net >http://www.chrispy.net/mailman/listinfo/ctpp-news > > > >_______________________________________________ >ctpp-news mailing list >ctpp-news(a)chrispy.net >http://www.chrispy.net/mailman/listinfo/ctpp-news ------------------------------------------------------------------------------------------------- Patricia C. (Patty) Becker 248/354-6520 APB Associates/SEMCC FAX 248/354-6645 28300 Franklin Road Home 248/355-2428 Southfield, MI 48034 pbecker(a)umich.edu

13 years, 10 months

TAZ delineation software: update on process

by Elaine.Murakami＠dot.gov

To State DOTs and MPOs who will be delineating TAZs and TADs for the CTPP: Many of you have been sending corrections to the TAZ contact databases over the last couple of weeks. Thanks so much for your attention to this matter. If you haven't done so already, please convey your changes/updates to Ms Liang Long, liang.long(a)dot.gov The Census Bureau Geography Division has told us that they are likely to use a data download system to transmit the TAZ delineation software and the county files to you. This system will be password protected. There will still be some agencies for which this approach may not be feasible, and in those cases, a mailout will be used instead. Don't forget the workshop on ACS data at TRB annual meeting, on Sunday, January 23 at the Hilton, Columbia Hall 6 from 9:00 a.m. - noon. Hope to see you there. Elaine Murakami FHWA Office of Planning 206-220-4460

13 years, 11 months

ACS 2005-09 comparisons with 2000 SF3

by Elaine.Murakami＠dot.gov

Nathan Erlbaum of NY State DOT has provided some links that may help you when the first small area data are released from the ACS (2005-2009). Note: the smallest geographic unit will be census tract (2000 geography). Block Group data will be released later in Summary File format. From: Erlbaum, Nathan (DOT) [mailto:nerlbaum@dot.state.ny.us] Sent: Tuesday, December 07, 2010 5:01 AM Subject: FW: ACS 2005-09 comparisons with 2000 SF3 FYI. This may help next week when the 5-year ACS data are released. It appears that the Census Bureau has updated its guidelines for comparing the 5-year 2005-09 ACS data to 2000 data. When I checked this link today (http://www.census.gov/acs/www/guidance_for_data_users/comparing_2009/), I noticed that it included the 5-year data, which had been missing when I last checked just a week or so ago. Also, the Bureau provides a variable-specific drill-down tool here: http://www.census.gov/acs/www/guidance_for_data_users/2009_table_comparison… Pretty neat.

13 years, 11 months

Developing Transportation Data Products from the American Community Survey That Comply With Disclosure Rules -- Call for Second Phase Research Test Sites

by Roisman, Richard

Dear Colleagues (apologies for cross-posting for those who also subscribe to TMIP-L), The study team for NCHRP 8-79 (Developing Transportation Data Products from the American Community Survey That Comply With Disclosure Rules) is looking for small and medium-sized MPOs to participate in the second phase of research into the impact of disclosure-avoidance techniques on the resulting data usability for transportation planning and travel demand modeling of the 5-year ACS-based CTPP tabulations. The team is interested both in small and medium-sized MPOs who maintain their own travel demand forecasting models, and MPOs who perform sketch-planning modeling using the methods from NCHRP Report 365. Participation would include production of a nominal amount of travel model output. Please contact me off-list at rroisman(a)vhb.com<mailto:rroisman@vhb.com> if you represent a small or medium-sized MPO and would like to assist the research effort, or know of some good candidate agencies. Thank you for your time. -Rich Roisman Richard I. Roisman, AICP Senior Transportation Planner VHB | Vanasse Hangen Brustlin, Inc. Transportation | Land Development | Environmental Services 8300 Boone Boulevard, Suite 700 Vienna, VA 22182 Phone: 703.847.3071 x5233 | Fax: 703.847.0298 | Mobile: 202.744.2377 rroisman(a)vhb.com<mailto:RRoisman@VHB.com> www.vhb.com<http://www.vhb.com/> This communication is confidential and intended only for the recipient(s). Any other use, dissemination, copying, or disclosure of this communication is strictly prohibited. If you have received this communication in error, please notify us and destroy it immediately. Vanasse Hangen Brustlin, Inc. is not responsible for any undetectable alteration, transmission error, conversion, media degradation, software error, or interference with this transmission. Vanasse Hangen Brustlin, Inc. | 101 Walnut St | Watertown, MA 02472 | 617.924.1770

13 years, 11 months

5-year ACS is coming December 14th

by Ed Christopher

The reference webinar is for the media but when I went to the web page it appeared that anyone could join. ---------------------------- American Community Survey 2005-2009 American Community Survey 5-Year Estimates -- On Dec. 14, at 9a.m. EST, the Census Bureau will hold a Web conference to present data covering more than 40 topics, such as income, poverty, educational attainment, commute to work, foreign-born population, language spoken at home, ancestry, occupation, number of vehicles available and housing costs. These estimates will be available for the nation, all 50 states, the District of Columbia, Puerto Rico, congressional districts, counties, places and metropolitan areas and census tracts and block groups. There will be a pre-release technical webinar Dec. 8. Media advisory: <http://www.census.gov/newsroom/releases/archives/american_community_survey_…> -- Ed Christopher 708-283-3534 (V) 708-574-8131 (cell) FHWA RC-TST-PLN 4749 Lincoln Mall Drive, Suite 600 Matteson, IL 60443

13 years, 11 months

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ctpp-news December 2010