I will be out of the office starting 04/10/2009 and will not return until
If you need immediate assistance please see one of the following people
during my absence.
Kin Koerber 7H486E 3-7620
Melissa Chiu 7H484F 3-2421.
For all CTPP-related matters please see Melissa Chiu.
The detailed 2007 American Community Survey data for journey-to-work
and household characteristics was released by the Census Bureau on
September 23, 2008. We completed our first report on the ACS 2007 for
our region, on October 2nd. The 30 page report is here:
The most interesting finding is a statistically significant (95% CL)
increase in transit commuting, 2006 to 2007, from 315,000 to 336,000.
The increase in our regional share of transit commuters (9.5 to 10.0
percent), was not a statistically significant increase (95% CL) (though
it was significant at a 90% CL).
Commute times are stable, at about 27 minutes per one-way commute.
Intra-county commute shares (% living and working in same county) has
remained stable between 2000 and 2007, at about 72 percent intra-county
We also produce tables on housing affordability, poverty, race, and
household vehicle availability, since those are topics of interest to us
and our policy board.
Chuck Purvis, MTC
Charles L. Purvis, AICP
Principal Transportation Planner/Analyst
Metropolitan Transportation Commission
101 Eighth Street
Oakland, CA 94607-4700
(510) 817-5755 (office)
(510) 817-7848 (fax)
PRESIDENT TO NOMINATE ROBERT M. GROVES TO BE CENSUS DIRECTOR
President Obama is expected today to nominate Dr. Robert M. Groves,
Director of the University of Michigan’s Survey Research Center,
Institute for Social Research, since 2001, to be director of the U.S.
Dr. Groves, also a research professor at the University of Maryland,
holds a Bachelor of Arts degree in sociology (Dartmouth College), Master
of Arts degrees in statistics and sociology (University of Michigan),
and a doctorate in sociology (University of Michigan). He headed the
Joint Program in Survey Methodology (University of Maryland/University
of Michigan/Westat) from 1996-2001, and has been a visiting statistician
and researcher at the U.S. Census Bureau.
Dr. Groves received the National Association for Business Economics 2008
Julius Shiskin Memorial Award for Economic Statistics, in recognition of
“innovative statistical research” that has improved the quality of
household and business surveys in the areas of sample design, data
collection methods, effects of nonresponse, and other factors that
affect data quality. The award is given in recognition of “unusually
original and important contributions in the development of economic
statistics or in the use of statistics in interpreting the economy.”
The nominee is widely published as the author or co-author of numerous
books, monographs, journal articles, and book chapters, with an emphasis
on survey methodology and design. He has received numerous awards and
honors for his research and scientific developments and is a Fellow of
the American Statistical Association. Dr. Groves has assisted a wide
range of government agencies (in the U.S. and abroad), universities and
research organizations, and polling firms with survey design. He also
has served on numerous advisory boards and National Research Council
(National Academy of Sciences) panels (he currently chairs a panel
reviewing Bureau of Justice Statistics programs).
The Senate Committee on Homeland Security and Governmental Affairs, led
by Chairman Joseph Lieberman (I-CT) and Ranking Member Susan Collins
(R-ME), will consider the nomination, which requires Senate
confirmation. Sen. Thomas Carper (D-DE) and Sen. John McCain are the
chairman and ranking member, respectively, of the committee’s
Subcommittee on Federal Financial Management, Government Information,
Federal Services, and International Security, which has jurisdiction
over Census Bureau programs.
Census News Briefs are prepared by Terri Ann Lowenthal, an independent
legislative and policy consultant working with a wide range of census
stakeholders to promote an accurate 2010 census. All views expressed in
the News Briefs are solely those of the author. Please direct questions
about the information in this News Brief to Ms. Lowenthal at
TerriAnn2K(a)aol.com. Please feel free to circulate this document to
other interested individuals and organizations and to reprint any or all
of the information. Previous Census News Briefs are posted on the Census
Project web site, at www.thecensusproject.org.
FHWA Resource Center
19900 Governors Dr
Olympia Fields, IL 60461
The 1% and 5% don't exactly refer to geography. They refer to the
sampling fraction; the proportion of the total resondents who are
included in the PUMS files.
PUMS geography is based on PUMAs (Public Use Microdata Sample areas)
for the 5% files; these have to be at least 100,000 population. The
1% file uses super-PUMAs, which have to be at least 250,000 in
population size. Your state data center should be able to tell you
what the PUMAs are for your state or area; they're also included in
the 2000 census PUMS documentation.
Hope this helps.
At 03:37 PM 3/25/2009, you wrote:
>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,
>ctpp-news mailing list
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