Thanks for the update Jonathan,
We are still using Windows XP and have the same problem with the CTPP
browser always crashing when creating a new file. It's good to know that
this problem appears to not exist with Vista.
---------------------------------------------
Paul Agnello
Travel Demand Modeling Manager
VDOT Transportation & Mobility Planning Division (TMPD)
(804) 786-2531
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net
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Sent: Wednesday, September 23, 2009 6:44 PM
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Subject: ctpp-news Digest, Vol 67, Issue 7
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Today's Topics:
1. RE: CTPP 2000 Software question (Jonathan Lupton)
2. Sept Issue of CTPP Status Report (Elaine.Murakami(a)dot.gov)
----------------------------------------------------------------------
Message: 1
Date: Wed, 23 Sep 2009 15:52:50 -0500
From: "Jonathan Lupton" <jlupton(a)metroplan.org>
Subject: RE: [CTPP] CTPP 2000 Software question
To: <ctpp-news(a)chrispy.net>
Message-ID: <00a201ca3c8f$d0cb3a50$7261aef0$@org>
Content-Type: text/plain; charset="us-ascii"
I got Windows Vista a year or two and - to my surprise - have had fewer
problems than before. In fact, the CTPP browser's performance has gotten
better. With Windows 2000, the browser would always crash when
generating a
new file. I could still use it, because I could re-open the browser, and
the
newly generated file would appear as if nothing had gone wrong. With
Windows
Vista, the crashes have dropped from 100% of the time to about 30%, so
it's
an improvement.
Don't ask me what this means - I don't know. Just wanted to share my
experiences with the group.
Jonathan Lupton
Research Planner
Metroplan
Little Rock AR
With Windows 2000
-----Original Message-----
From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Peter H. Van Demark
Sent: Wednesday, September 23, 2009 11:23 AM
To: ctpp-news maillist
Subject: Re: [CTPP] CTPP 2000 Software question
Ed:
>Has anyone tried to load the CTPP 2000 Browser on a Windows Vista
>machine? I just got wind that it might not work.
I want to remind you that TransCAD users have ready access to the 2000
CTPP
data. TransCAD provides Table Choosers for Parts 1 and 2, and a Matrix
Chooser for Part 3. The data for Parts 1 and 2 are available for
download
from the TransCAD User Center, and the data for Part 3 can be requested
from TransCAD Tech Support.
If you have 1990 CTPP Data CDs, TransCAD has a utility for opening Part
A,
B and C tables from the Statewide Element and Part 1, 2 and 3 tables
from
the Urban Element.
There are also TransCAD Table Choosers for ACS data. We are building the
Table Chooser for the 2008 ACS 1-year data that were released yesterday
and
will do the same for the 3-year data that will be released next month.
Peter
----------------------------------------------------------------
Peter H. Van Demark
Director of GIS Products and Training Phone: 617-527-4700
Caliper Corporation Fax: 617-527-5113
1172 Beacon Street, Suite 300 E-mail: peter(a)caliper.com
Newton MA 02461-9926 Web site: http://www.caliper.com
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------------------------------
Message: 2
Date: Wed, 23 Sep 2009 18:14:13 -0400
From: <Elaine.Murakami(a)dot.gov>
Subject: [CTPP] Sept Issue of CTPP Status Report
To: <ctpp-news(a)chrispy.net>
Message-ID:
<CF032B70701A774D9ADC2FC046347BCD03607C(a)OSTMAIL04VS5.ad.dot.gov>
Content-Type: text/plain; charset="us-ascii"
Skipped content of type multipart/alternative-------------- next part
--------------
A non-text attachment was scrubbed...
Name: FINAL_CTPP Status Report_Sept 2009.pdf
Type: application/octet-stream
Size: 67995 bytes
Desc: FINAL_CTPP Status Report_Sept 2009.pdf
Url :
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End of ctpp-news Digest, Vol 67, Issue 7
****************************************
Attached is a new issue of the CTPP Status Report.
The first CTPP data products using the American Community Survey (ACS)
are expected in late Spring/early Summer 2010. The Census Bureau gave
final approval of the CTPP table set in April 2009, after prolonged
discussion with the Census Bureau's Disclosure Review Board and
significant paring down of the list. This CTPP uses three years
(2006-2007-2008) of the ACS and is limited to large geographic area,
that is, it does not include tabulation for census tracts or TAZs.
Hope you will have a chance to look at the Profile sheets (see page 6 of
the status report) that use the Census 2000, CTPP2000, and 2005-2007 ACS
data.
Previous issues of the CTPP Status Reports are available at:
http://www.fhwa.dot.gov/ctpp/status.htm
Elaine Murakami
FHWA Office of Planning
Ed:
>Has anyone tried to load the CTPP 2000 Browser on a Windows Vista
>machine? I just got wind that it might not work.
I want to remind you that TransCAD users have ready access to the 2000 CTPP
data. TransCAD provides Table Choosers for Parts 1 and 2, and a Matrix
Chooser for Part 3. The data for Parts 1 and 2 are available for download
from the TransCAD User Center, and the data for Part 3 can be requested
from TransCAD Tech Support.
If you have 1990 CTPP Data CDs, TransCAD has a utility for opening Part A,
B and C tables from the Statewide Element and Part 1, 2 and 3 tables from
the Urban Element.
There are also TransCAD Table Choosers for ACS data. We are building the
Table Chooser for the 2008 ACS 1-year data that were released yesterday and
will do the same for the 3-year data that will be released next month.
Peter
----------------------------------------------------------------
Peter H. Van Demark
Director of GIS Products and Training Phone: 617-527-4700
Caliper Corporation Fax: 617-527-5113
1172 Beacon Street, Suite 300 E-mail: peter(a)caliper.com
Newton MA 02461-9926 Web site: http://www.caliper.com
For your potential use, I extracted 3 tables from the 2008 ACS data
(released by the Census Bureau yesterday) and saved as .xls file.
Of course, you could have done this yourself, and several of you have
probably already made local data sheets.
They are: C08134: Means of Transportation to Work by Travel Time
B08141: Means of Transportation to work by Vehicles
Available
C08301: Means of Transportation to work (univariate)
I used the data download feature
http://factfinder.census.gov/servlet/DownloadDatasetServlet?_lang=en
For more information about the ACS Table List, please go here:
http://www.census.gov/acs/www/Products/users_guide/index.htm
Please be aware that not all Metro Areas will have data available for
each table, since the coefficient of variation (CoV) is checked before
release.
When the table number starts with "C" it means it is the collapsed
version. Therefore, you can use the "B" table instead with more
categories, by going back into American FactFinder, or the Data Download
Center.
For each cell, there is an ESTIMATE and a MOE (Margin of Error). The
MOE cell does NOT include "+/-" in the cell value (Hurrah!).
As a reminder, FHWA prepared transportation profile sheets using Census
2000, CTPP2000 and the 2005-2007 ACS results which are posted on the
CTPP AASHTO webpage
http://ctpp.transportation.org/profiles_2005-2007/ctpp_profiles.html
These profiles include State, County and Place, and do NOT include
Metropolitan Area totals. Because they use an accumulation of three
years of ACS, the population threshold is 20,000 and therefore, more
geographic areas are available.
We are not planning to update these profile sheets when the next 3-year
ACS (2006-2007-2008) data are released.
Elaine Murakami
FHWA Office of Planning
Focus on Promoting the 2010 Census:
News from Capitol Hill:
2010 Census "Partner" News:
Delay in Release of Some ACS Data:
The Rest of the News
FOCUS ON PROMOTING THE 2010 CENSUS
Latino organizations hold "summit" on Communications Campaign: More than
40 national Latino organizations, U.S. Census Bureau officials, and
media companies working on the targeted Latino communications campaign
met last week to discuss efforts to promote census participation among
Latinos and ways to coordinate messages about the importance of the
decennial count. According to a summary of the meeting prepared by the
Latino Census Network, attendees talked about fear of government and
concerns about data confidentiality; calls for undocumented residents to
boycott the 2010 census until Congress enacts comprehensive immigration
reform; the importance of engaging faith-based institutions in census
outreach activities; the implications of anti-immigrant sentiments; and
other challenges to achieving an accurate count of Latinos.
The National Association of Latino Elected and Appointed Officials
(NALEO), a member of the 2010 Census Advisory Committee, and Latino
Census Network Chairman Angelo Falcon, who serves on the Census
Bureau's Advisory Committee on the Hispanic Population, spearheaded the
meeting of the Latino Census Communications Group. The September 17
gathering was held at the National Council of La Raza offices in
Washington, DC. To sign up for updates from the Latino Census Network,
visit the National Institute for Latino Policy web site at
www.latinopolicy.org
[http://rs6.net/tn.jsp?et=1102710602087&s=12&e=001HGlv0RwB0sCsDryE3AZLjYnGbf…].
All of the Census Bureau's official advisory committees, which are
scheduled to hold their regular fall meetings in the coming weeks, will
meet jointly on December 9, 2009, to provide final feedback to the
agency on the 2010 Census Integrated Communication Campaign. Expert
Census Bureau panel applauds paid media campaign development: An
independent panel of marketing and communications experts commended the
Census Bureau for using industry and academic "best practices" to create
the paid media campaign for the 2010 census. The agency formed the
five-member Academic Assessment Panel last spring to "evaluate the
methods used to define and develop the communications
campaign,"according to a Census Bureau press release. Panel Chairman
Dr. Jerome D. Williams, the F.J. Heyne Centennial Professor in
Communication, University of Texas, Austin, said in a written statement
that "the Census Bureau and [Communications Campaign contractor]
DraftFCB team have done an exceptional job and are to be applauded for
what has been developed so far under very challenging conditions." He
called the crafting of the 2010 Integrated Communications Campaign
"fundamentally sound." 2010 Census Publicity Office Chief Raul Cisneros
said the expert review during the development phase of the media
campaign allowed the Census Bureau to incorporate the panel's
recommendations for improvements and revisions before it finalized
advertising plans.
Modified ACS materials seek to minimize confusion in 2010: The Census
Bureau will revise current materials or add new ones in conducting the
American Community Survey (ACS) next year, to help reduce anticipated
confusion among households that receive both the ACS questionnaire and
2010 census form. The ACS samples about 250,000 addresses a month, or 3
million a year, collecting a wide range of demographic, social, housing,
and economic data previously gathered on the census long form once every
ten years. The ACS was first implemented nationwide in 2005.
ACS materials sent to homes in the sample, including a pre-notice letter
and at least one questionnaire (unresponsive homes receive a replacement
form), will advise recipients that they will be receiving both ACS and
decennial census questionnaires in 2010, and that they are required by
law to complete both. The agency also will modify packaging for ACS
materials next year, using different colors and logos on the envelopes
to distinguish them from the 2010 census mail packages.
NEWS FROM CAPITOL HILL
Senate bill would add citizenship question to decennial census: Sen.
Robert Bennett (R-UT) introduced legislation that would require the
Census Bureau to collect information on citizenship and legal status in
the decennial census, in order to remove undocumented residents from the
state population totals used for congressional apportionment. The
"Fairness in Representation Act" (S. 1688) calls for a "checkbox or
other similar option" on the census questionnaire, to determine if
respondents are U.S. citizens or legal residents. In a press statement,
Sen. Bennett said it "does not make any sense" for congressional
apportionment and representation in the Electoral College "to be
determined by a process that unfairly provides the advantage to those
communities with high illegal populations." The lawmaker praised the
Census Bureau's work but called the apportionment process "broken and
unfair."
The proposal, if enacted in its current form, would be effective
starting with the 2010 census. It takes several years for the Census
Bureau to research, develop, and test its forms for a decennial census,
and almost a full year to print and address questionnaires. For the
last several decades, the census has included a short form sent to all
housing units, and a long form sent to a sample of homes; only the long
form included a question on citizenship. The American Community
Survey, which is replacing the traditional long form in 2010, asks
respondents if they are U.S. citizens.
Article I, section 2, of the U.S Constitution requires a population
census every ten years as the basis for allocating seats in the House of
Representatives. As modified by the Fourteenth Amendment (section 2),
the apportionment is based on "the whole number of persons in each
State, excluding Indians not taxed." Congress debated whether
"citizens" or "voters" should be the basis for apportionment when it
passed the Fourteenth Amendment in 1866, according to a Congressional
Research Service review of similar legislative debates on the eve of the
1990 enumeration (LOC/CRS Report No. 88-62A, January 13, 1988). Since
then, lawmakers have considered (but not enacted) a number of proposals
to amend the Constitution to exclude non-citizens or undocumented
residents from the census population counts used for apportionment.
Former Rep. Thomas Ridge (R-PA), ranking member on the census oversight
subcommittee at the start of the 1990 census, led a group of
Representatives, states, and private organizations in a lawsuit seeking
to exclude undocumented residents from the apportionment counts (Ridge
v. Verity, 715 F.Supp. 1308, W.D.Penn. 1989); a federal appeals court
upheld the lower court's dismissal of the case for lack of standing.
More recently, Rep. Candice Miller (R-MI) sponsored a resolution
(H.J.Res. 11) to amend the Constitution to exclude non-citizens from the
apportionment counts derived from the census.
The resolution, which has 11 cosponsors, was referred to the Committee
on the Judiciary, which considers all proposed constitutional
amendments. The Bennett bill, referred to the Senate Committee on
Homeland Security and Governmental Affairs, had three original
cosponsors: Sen. Jim Bunning (R-KY), Sen. Mike Crapo (R-ID), and Sen.
Michael Enzi (R-WY). House oversight panel to evaluate Communications
Campaign: The House Subcommittee on Information Policy, Census, and
National Archives (Committee on Oversight and Government Reform) will
hold a hearing on September 22, 2009, to examine the 2010 Census
Integrated Communications Campaign, including "criteria for
implementation" and "measurements for success." Census Bureau Director
Robert Groves also will provide an update on preparations for the
upcoming decennial count. The hearing will start at 2:00PM in Room
2154 Rayburn House Office Building.
2010 CENSUS "PARTNER" NEWS
Census Bureau ends ACORN's 2010 census partnership: Census Director
Robert Groves told the Association of Community Organizations for Reform
Now (ACORN) that the agency was terminating its Partnership Agreement
with the nonprofit organization, citing criteria for determining whether
a group can serve effectively as a booster for the 2010 count. The
director said in a September 11 letter that "ACORN's affiliation with
2010 Census promotion has caused sufficient concern in the general
public, has indeed become a distraction from our mission, and may even
become a discouragement to public cooperation, negatively impacting 2010
census efforts."Dr. Groves said the Census Bureau did not "come to this
decision lightly," citing the agency's initial hope that ACORN could
help encourage census participation among hard-to-count populations,
such as the poor, renters, and people whose primary language is not English.
ACORN's participation in the Partnership Program drew significant
criticism from Republicans in Congress. Sen. Richard Shelby (R-AL) and
Sen. David Vitter (R-LA) delayed a vote on Dr. Groves' nomination to be
Census Director based, in part, on their concerns about ACORN's role as
a 2010 census partner. Rep. Patrick McHenry (R-NC), ranking member on
the House census oversight subcommittee, urged the Census Bureau to end
the agreement last spring. In a statement calling the director's recent
action "welcome news," Rep. McHenry praised Dr. Groves' "courage" for
terminating its relationship with ACORN and said he was "sure there are
those in the Obama Administration who will not be happy" with the decision.
Rep. Darrell Issa (R-CA), the senior Republican on the Oversight and
Government Reform Committee (of which the census subcommittee is a
part), said, "ACORN's partisan election efforts and its involvement in
criminal conduct rightly disqualify it from working on the non-partisan
mission of the Census to accurately and honestly count the U.S.
population." The congressman said that congressional redistricting and
the allocation of federal funds would have been affected "[h]ad ACORN
been allowed to submit fraudulent information to the Census." A
description of the Partnership Program on the Census Bureau's web site
says that partner organizations "are not Census employees and have no
responsibility for counting, collecting or processing census data."
Community-based organizations, schools, businesses, state and local
governments, and other groups may sign a "partnership agreement" with
the Census Bureau, promising to be "advocates for census cooperation and
participation," according to guidelines for the Partnership Program.
A description of the selection process says that partners should be
"visible and trusted voices in the communities they serve." Partner
organizations are asked to consider a wide range of activities that
would promote cooperation with the census, including displaying and
distributing materials, volunteering at Census Bureau events, inviting
Census Bureau staff to speak at conferences and meetings, helping to
translate census materials, providing space to test job applicants, and
serving as a Questionnaire Assistance Center or Be Counted site.
Partnership Program staff may decline to select organizations as 2010
census partners, according to the guidelines, if applicants "are not
trusted or are viewed negatively within the community" or "could
distract from the Census Bureau's mission," among other reasons. More
than 80,000 national and local organizations have signed partnership
agreements in support of the 2010 census; there were about 140,000
partners during the 2000 census. Asian American advocacy group launches
census campaign: The Asian American Justice Center (AAJC), a member of
the 2010 Census Advisory Committee, has launched a national campaign to
mobilize the Asian American community in support of the 2010 census.
The effort, which includes partnerships with eight local organizations
in areas with significant Asian American populations, will rely on media
outreach, community education, and social networking to highlight the
importance of census participation. AAJC will translate many of its
census campaign materials, such as fact sheets and toolkits, into 15
languages. To access AAJC's census campaign materials, visit
www.asianamericancensus.org
[http://rs6.net/tn.jsp?et=1102710602087&s=12&e=001HGlv0RwB0sCFtXgWIsbKDIpwlu…].
CODING MISTAKE DELAYS RELEASE OF SOME ACS ECONOMIC TABLES BY ONE WEEK
The Census Bureau will release 2008 American Community Survey (ACS)
one-year estimates on poverty, family income, and food stamp recipients
a week later than planned after discovering a coding error that affected
tabulation of the data. The agency said the mistake affected
approximately ten percent of the data tables, which it will now publish
on September 29. All other data for the roughly 7,000 jurisdictions with
a population of 65,000 or greater will be available on September 22, as
originally planned. Three-year ACS estimates, for areas with a
population of 20,000 or greater, will be released on October 27. The
coding mistake involved new check-box options for children and in-laws
in the 2008 ACS relationship question; the tabulation of data on family
income (which in turn affects poverty and food stamp receipt
calculations) failed to account for income from these sources. Members
of the press were notified of the problem late last week, when the
Census Bureau was scheduled to release the full set of one-year data to
the media on an embargoed basis. For more information on the annual ACS
data release, see the September 6, 2009 Census News Brief (#73).
THE REST OF THE NEWS ...
Report highlights importance of count of undocumented residents: The
Drum Major Institute for Public Policy has issued a report analyzing the
benefits of counting undocumented residents accurately in the decennial
census. The self-described "progressive" Institute concludes in "The
Next Economic Imperative: Undocumented Immigrants and the 2010 Census"
that, "Failing to gather accurate information about an estimated 12
million undocumented residents will make it too difficult for the
country to recover from the worst recession in decades: local and state
governments won't receive adequate funding for public services;
businesses will be discouraged from investing in new markets and
creating jobs in growing communities; costly mistakes will be made in
infrastructure, education, and health care because of incomplete
demographic data. "The nonprofit think tank also has drafted talking
points to help immigrant advocates and other groups discuss the
importance of counting immigrants. For a copy of the report and the
talking points, visit the organization's web site at
http://www.drummajorinstitute.org/library/report.php?ID=98
[http://rs6.net/tn.jsp?et=1102710602087&s=12&e=001HGlv0RwB0sC_emfJrQBlcfv0-2…].
Census Project blog tackles key 2010 census policy and operational
issues: The Census Project launched a new weekly blog to follow final
preparations for and implementation of the 2010 decennial census. If
you would like to receive new posts each week via e-mail, click here
http://feedburner.google.com/fb/a/mailverify?uri=censusblog&loc=en_US
[http://rs6.net/tn.jsp?et=1102710602087&s=12&e=001HGlv0RwB0sC2KOJRHOGvp7je04…]
to sign up, or click here http://twitter.com/censusproject
[http://rs6.net/tn.jsp?et=1102710602087&s=12&e=001HGlv0RwB0sAYnbisMSZAmbzwYk…]
to follow us on Twitter.
Census News Briefs are prepared by Terri Ann Lowenthal, an independent
legislative and policy consultant specializing in the census and federal
statistics. 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. Ms. Lowenthal is a consultant to the nonpartisan Census
Project, organized by the Communications Consortium Media Center in
Washington, DC. Previous Census News Briefs are posted at
www.thecensusproject.org
[http://rs6.net/tn.jsp?et=1102710602087&s=12&e=001HGlv0RwB0sDx8823CBip7P6sej…].
--
Ed Christopher
708-283-3534 (V)
708-574-8131 (cell)
FHWA RC-TST-PLN
4749 Lincoln Mall Drive, Suite 600
Matteson, IL 60443
that is why it needs to be developed in an open source environment
>>> edc(a)berwyned.com 9/17/2009 9:55 AM >>>
Has anyone tried to load the CTPP 2000 Browser on a Windows Vista
machine? I just got wind that it might not work. All my machines are
either Home XP or XP Professional and it works fine sans the normal
crash message that you just ignore and keep going. I am also trying to
get a handle if anyone has run into issues with the software on 32
versus 64 bit systems.
--
Ed Christopher
708-283-3534 (V)
708-574-8131 (cell)
FHWA RC-TST-PLN
4749 Lincoln Mall Drive, Suite 600
Matteson, IL 60443
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
http://www.chrispy.net/mailman/listinfo/ctpp-news
Yes, I've tried to load the CTPP Browser on a Windows Vista machine, and get the following error message:
Unsupported 16-Bit Application
The program or feature "\E:\Extraction Software\software\setup.exe" cannot start or run due to incompatibility with 64-bit versions of Windows. Please contact the software vendor to ask if a 64-bit Windows compatible version is available.
Can anybody help me?
Thanks.
Bob Keeth
Volusia County MPO
Daytona Beach, FL
(386) 226-0422 extension 30
Robert Keeth, Senior Planner
Volusia County Metropolitan Planning Organization
Indigo Professional Centre, Suite 120
2570 W. International Speedway Boulevard
Daytona Beach, FL 32114-8145
(386) 226-0422 ext. 30 - voice
(386) 226-0428 - fax
PUBLIC RECORDS NOTICE: The Volusia County Metropolitan Planning Organization is governed by the State of Florida public records law. This means email messages, including your e-mail address and any attachments and information we receive online might be disclosed to any person making a public records request. If you have any questions about the Florida public records law refer to Chapter 119 Florida Statutes.
>>> Ed Christopher <edc(a)berwyned.com> 09/17/09 10:01 AM >>>
Has anyone tried to load the CTPP 2000 Browser on a Windows Vista
machine? I just got wind that it might not work. All my machines are
either Home XP or XP Professional and it works fine sans the normal
crash message that you just ignore and keep going. I am also trying to
get a handle if anyone has run into issues with the software on 32
versus 64 bit systems.
--
Ed Christopher
708-283-3534 (V)
708-574-8131 (cell)
FHWA RC-TST-PLN
4749 Lincoln Mall Drive, Suite 600
Matteson, IL 60443
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
http://www.chrispy.net/mailman/listinfo/ctpp-news
Has anyone tried to load the CTPP 2000 Browser on a Windows Vista
machine? I just got wind that it might not work. All my machines are
either Home XP or XP Professional and it works fine sans the normal
crash message that you just ignore and keep going. I am also trying to
get a handle if anyone has run into issues with the software on 32
versus 64 bit systems.
--
Ed Christopher
708-283-3534 (V)
708-574-8131 (cell)
FHWA RC-TST-PLN
4749 Lincoln Mall Drive, Suite 600
Matteson, IL 60443
Someone passed me this today. Apparently it was posted to the State
Data Center list serve and provides the current status of what is known
about PUMAs. PUMAs are of special importance to the transportation
community since they are now a tabulation geography for ACS and provide
the only wall-to-wall coverage of annual ACS data for metropolitan
areas. If anyone along this list will be involved with the referenced
October 14-16 State Data Center meeting please let us know what minimum
population thresholds the CB plans to propose for tract based PUMAs.
=============
State Data Center Network:
The Census Bureau is currently drafting the 2010 Public Use Microdata
Area (PUMA) delineation proposed criteria. These draft proposed
criteria were developed based on internal meetings with key Census
Bureau stakeholders, and with consideration of new challenges and issues
associated with the use of PUMAs in the publication of annual American
Community Survey (ACS) Public Use Microdata Sample (PUMS) data as well
as in the publication of ACS estimates.
The Census Bureau will present the 2010 PUMA delineation proposed
criteria at the upcoming State Data Center Annual Meeting (October
14-16, 2009) for discussion and comment. Subsequently, pending the
approval of the Census Bureau’s Statistical Areas Committee, the Census
Bureau will publish the 2010 PUMAs proposed criteria in the Federal
Register for public comment. State Data Centers (SDCs) will use the
final version of these criteria, as published in a forthcoming Federal
Register, to delineate PUMAs for Census 2010 and the ACS.
For your consideration, the following represents a high level summary of
the planned 2010 PUMA delineation proposed criteria:
1. PUMA types: One “level” of PUMAs will be delineated for the United
States, Puerto Rico, Guam, and the U.S. Virgin Islands, as compared with
two “levels” of PUMAs for Census 2000 (super-PUMAs and standard PUMAs).
Additionally, place of work PUMAs (POW PUMAs) and migration PUMAs (MIG
PUMAs) will be based on a single PUMA for county-based PUMAs or an
aggregation of adjacent PUMAs for tract-based PUMAs. Note: All
subsequent references to PUMAs in this document, unless preceded by
“POW” or “MIG”, refer to these standard PUMAs.
2. Population Thresholds: Each PUMA must contain a minimum population of
100,000 both at the time of delineation and throughout the decade for
the publication of ACS PUMS data and ACS estimates. For those areas
currently experiencing population decline, or where population decline
throughout the decade is expected, PUMAs should be initially delineated
to include a population significantly higher than 100,000 persons to
accommodate this change. Should the population of a PUMA fall
significantly below the 100,000 person threshold, the PUMA will be
combined with one or more adjacent PUMAs for ACS PUMS and ACS estimate
publication.
3. PUMA Composition: All PUMA types (PUMAs, POW PUMAs and MIG PUMAs)
must nest within states (i.e., may not cross state boundaries). PUMAs
will be based on aggregations of counties and census tracts only.
Incorporated places and MCDs will not be used as building blocks for
2010 PUMAs. Census tracts may be aggregated to approximate minor civil
divisions, incorporated places, or census designated places.
Provided the PUMA meets the minimum population threshold:
a. One county may be designated as a PUMA
b. Two or more contiguous counties may be aggregated to create a PUMA
c. Contiguous census tracts may be aggregated to create a PUMA
Tract-based PUMAs may cross county boundaries, provided that each
PUMA-county part meets a minimum area and/or population threshold (TBD -
The Census Bureau is currently determining an appropriate minimum area
and population threshold for these areas, and will provide these minimum
thresholds at the SDC Annual Meeting in October).
Census tract aggregations may compose or approximate the extent of
other types of geographic entities, including minor civil divisions,
incorporated places, and census designated places.
4. PUMA contiguity In all cases, each PUMA must constitute a
geographically contiguous area. Limited exceptions are presented here:
a. A PUMA may be discontiguous if a county is discontiguous.
b. A PUMA may be discontiguous when it surrounds another whole PUMA,
e.g., if census tracts define a PUMA that approximates an incorporated
place or census designated place, a PUMA may be defined to encompass the
area within the county surrounding the place
The Census Bureau also intends to propose additional guidelines to which
delineation participants are strongly encouraged, but not required to,
adhere.
For your consideration, the following represents a high level summary of
the planned 2010 PUMA guidelines:
1. Wherever possible, each PUMA should comprise an area that is either
entirely inside or entirely outside Core Based Statistical Areas
2. The Census Bureau recommends that the number of five-percent PUMAs be
maximized, and that five-percent PUMAs should not contain more than
200,000 people, wherever possible, unless the PUMA is defined for an
area that is or will be experiencing population decline.
We appreciate your interest in the 2010 PUMA delineation program, and
look forward to discussing the planned proposed criteria with you at the
SDC Annual Meeting in October 2009. Should you have more immediate
questions please contact the Geographic Standards and Criteria Branch
PUMA team at geo.puma(a)census.gov.
--
Ed Christopher
708-283-3534 (V)
708-574-8131 (cell)
FHWA RC-TST-PLN
4749 Lincoln Mall Drive, Suite 600
Matteson, IL 60443
Thanks Elaine. I haven't actually used OnTheMap other than to explore the web application and try some downloads but I thought that I would forward the caveats that I have run across.
Re: Version 3 OTM...(see: http://www.vrdc.cornell.edu/onthemap/data/v3/notes-otm-v3.0.pdf )
V3 Caveats:
•QWI numbers are drawn from QWI release R2008Q2. Stable jobs and statistics related to 'stable jobs' have a bug which has been fixed in QWI release R2008Q4. An update to the data is expected later this year. Consult the LEHD site for more details.
•Current QWI numbers are considered experimental. Since they are computed using the same confidentiality protection technology as the general QWI numbers, but using much finer geographic cells, there are more suppressions (more smaller numbers to protect). Users should be aware that when aggregating numbers to levels that are comparable to the general QWI data, the numbers they generate will be systematically lower.
•Only one implicate has been released at this point. Future updates should be counted (and used) as additional implicates. Additional implicates may be released in the future as well.
•WAC, OD, and QWI files are only available for states participating in the LEHD program. RAC files are available for all states, even those not actively participating in the LEHD program, but coverage is limited. For example, a worker of a NJ company (NJ participates in LEHD) may live in NY (which not yet been integrated). Thus, a residence area for this and other workers is defined, and available here for download. However, the residence area information will NOT include information on workers of NY companies, since that information was not available at the time that OnTheMap v3.0 was created. (This applies for v3.0 to: CT, DC, MA, NY, NY, OH, PR, VI). These RAC files can be accessed through the links in the OD AUX files of states where these workers are tabulated.
It appears that only one implicate has been released in Version 3.
Version 2 documentation from section 1.2.3 at http://www.vrdc.cornell.edu/onthemap/doc/otm_public_master.pdf indicates that three implicates were available and adds the following warning:
This version of the data provides 3 implicates (independent draws in the synthesizing algorithm) for the OD matrix and the Residence Area Characteristics (RAC) files. This is reflected in the filenames, see Sections 1.4.3 and 1.4.4. For further information on how to properly analyze multiply synthesized or imputed datasets, see Raghunathan et al. (2003); Reiter (2004b) and Reiter (2004a), or consult Sessions 8a and 8b of the online INFO 747 class at Cornell University's CISER at http://vrdc.ciser.cornell.edu/info747/. A note of warning is in order, though: It is statistically incorrect to use the average of the 3 implicates unless the aggregator function is strictly linear. Adding geographic areas is linear, and forming ratios from two linearly aggregated quantities (earnings over employment, for example) can be done correctly as long as the numerator and the denominator are averaged separately.
