Thanks for the clarifications on SF2 data. There's so much information to
digest when understanding census...any and all assists from more experienced users are very much appreciated (and very much needed)!
I still, though, have concerns about losing the fine-geo-level of data. There's been a lot of talk about the effects of the "rule of 100" on data availability at the TAZ level, and I could see these same concerns affecting other long-form data. "Rule of 100" is currently affecting availability of 100% data on the SF2; the long-form is sample data, and will have less base N, even if totals are imputed (although I don't quite understand this methodology either). Is there room for collapsing across some of the "people categories" in order to have data for the smaller geographic levels? How much would that cost in dollars and timeliness?
Data privacy is a really compelling, knotty issue; how much privacy, and for whom? From whom? Is is public data, or government data? It seems like a decade ago, we didn't have the technology or data (so widely) available to even dream of the possible complications. And there are issues, too, about the representativeness/generalizability of summary data based on small N.
But I'd hate to lose the baby with the bathwater. There's so much to be gained from this incredible data source. It's one of the best things going (in my opinion), and crucial to good Planning.
So, is this just a transportation issue, or do other areas (health, human services, education, academia) deal with these issues in other ways?
Just thinkin',
Liz Hartmann
Did anyone notice on last week's announcement of the release of SF2 (combined LF and SF data) that the "rule of 100" applies? So, even though the "population-/minority count-pony" has long since passed through the paddock gate and is out in the far pasture growing fat on sweet grasses (down to the block level!), the outlook for the long-form data, such as income and poverty (for Environmental Justice concerns), looks a bit grim.
Are other groups outside of transportation, such as health, human services, or education, voicing any concerns about losing the fine geo-level information?
Liz Hartmann
Rsearcher, Office of Investment Management
Minnesota Department of Transportation
>>> ed christopher <edc(a)berwyned.com> 01/21/02 15:15 PM >>>
The death knell is sounding for the Census Bureau's long form. Attached
is a notice that appeared last week in the Federal Register. It is
seeking comments by March 18, 2002 on the execution of the long. Read
it carefully and comment appropriately. Note that there is no mention
of TAZ level data. The original notice can be found on the Government
Printing Office Website at
http://www.access.gpo.gov/su_docs/fedreg/a020116c.html
Once at this page just slide down to the "Census Bureau" heading.
ed christopher
fhwa-midwestern resource center
708-283-3534
Not true. SF2 is only short form (100% data) -- See the link below for
the technical documentation for SF2.
http://www.census.gov/prod/cen2000/doc/sf2.pdf
Appendix H "Characteristic Iterations" discusses the use of the population
threshold in showing matrices for specific race groups, Indian and Alaska
Native tribes, and Hispanic or Latino groups.
"Elizabeth Hartmann"
<elizabeth.hartmann(a)dot.st To: <ctpp-news(a)chrispy.net>
ate.mn.us> cc:
Sent by: Subject: [CTPP] Re: The Death Knell is Sounding
owner-ctpp-news(a)chrispy.ne
t
01/22/2002 11:34 AM
Did anyone notice on last week's announcement of the release of SF2
(combined LF and SF data) that the "rule of 100" applies? So, even though
the "population-/minority count-pony" has long since passed through the
paddock gate and is out in the far pasture growing fat on sweet grasses
(down to the block level!), the outlook for the long-form data, such as
income and poverty (for Environmental Justice concerns), looks a bit grim.
Are other groups outside of transportation, such as health, human services,
or education, voicing any concerns about losing the fine geo-level
information?
Liz Hartmann
Rsearcher, Office of Investment Management
Minnesota Department of Transportation
>>> ed christopher <edc(a)berwyned.com> 01/21/02 15:15 PM >>>
The death knell is sounding for the Census Bureau's long form. Attached
is a notice that appeared last week in the Federal Register. It is
seeking comments by March 18, 2002 on the execution of the long. Read
it carefully and comment appropriately. Note that there is no mention
of TAZ level data. The original notice can be found on the Government
Printing Office Website at
http://www.access.gpo.gov/su_docs/fedreg/a020116c.html
Once at this page just slide down to the "Census Bureau" heading.
ed christopher
fhwa-midwestern resource center
708-283-3534
Hi all. The welcome message for the ctpp-news mailing list has been
updated. Here is a copy for your records.
Chris
----
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Ed Christopher
Edc(a)trbcensus.com
The death knell is sounding for the Census Bureau's long form. Attached
is a notice that appeared last week in the Federal Register. It is
seeking comments by March 18, 2002 on the execution of the long. Read
it carefully and comment appropriately. Note that there is no mention
of TAZ level data. The original notice can be found on the Government
Printing Office Website at
http://www.access.gpo.gov/su_docs/fedreg/a020116c.html
Once at this page just slide down to the "Census Bureau" heading.
ed christopher
fhwa-midwestern resource center
708-283-3534
The Transportation Research Board's Subcommittee on Census Data for
Transportation Planning will be meeting at the TRB Annual Meeting on
Wednesday, January 16, 2002 at 2:30 PM. Attached is the agenda.
--
Ed Christopher
Metropolitan Activities
Midwest Resource Center
Federal Highway Administration
19900 Governors Drive
Olympia Fields, Illinois 60461
708-283-3534 (V)
708-283-3501 (F)
For those of you who were not Census data analysts when the 1990 Census data was released, you may be interested in Dowell Myers' book, "Analysis with Local Census Data, Portraits of Change," Academic Press, 1992. This is an excellent reference covering Census Bureau definitions, but more importantly, discusses how to use Census data in trend analyses. Users of Census 2000 data need to be careful in analyzing race data, since in 2000, respondents were able to select more than one answer.
I just checked on Amazon.com and it is listed for $73.95, with 2 used copies avail for less than the new price.
You may also be interested in Dowell's webpage:
www-ref.usc.edu/~dowell
which has other demographic analyses, mostly in California.
The TRB Census Data Subcommittee is sponsoring a workshop on the Census
American Community Survey at the annual meeting this year. The workshop
will be held Sunday, January 13th in the Hilton-Lincoln West room from 8:30
to noon. An agenda is attached - we hope you will be able to join us!
If you cannot make it, but have policy or technical questions, please email
them to me by Thursday, January 10th so that we can incorporate them into
the workshop discussions.
Stacey Bricka
Research Director
NuStats
3006 Bee Caves Rd, Ste A300
Austin, TX 78746
(512) 306-9065, ext 2240
Fax (512) 306-9077
