My apologies to the Census Bureau Geography Division:
The list below includes slightly different months from the post I sent
out last week. I am sure that the CTPP community is used to changes in
schedules, so this is the CURRENT schedule, but revisions may occur!
November 2010: agencies verify contact names by reviewing file at
Cambridge Systematics ftp site, and report any changes to Liang Long.
January 2011 : final delivery of software by Caliper to CB
February 2011: web-based training coordinated with FHWA
March - early April 2011 : delivery of software and Census 2010 data
and
geographic files on a rolling basis.
Each state will get 3 months to delineate their TAZ and TADs and
return the files to the Census Bureau.
June - early July 2011: all files MUST be returned to CB Geography
Division 3 months after the receipt of the TAZ/TAD delineation software
and data
Bottom line: March through June of 2011 are the CRITICAL months for you
(MPOs and State DOTs) to delineate TAZ and TADs using the software
provided by the Census Bureau Geography Division.
Agencies are NOT required to delineate TAZs or TADs. The default
geography for small area tabulation for the CTPP using 2006-2010 ACS
records will be census tracts. Even if you do not plan to delineate
TAZs, you may want to define TAD by combining 5 or 6 census tracts.
Again, the TAZ business rules are posted at the
FHWA webpage: http://www.fhwa.dot.gov/ctpp/tazddbrules.htm
Elaine Murakami
206-220-4460 (in Seattle)
I'll just jump in. I am on the CTPP Oversight Committee that prepared
the "Business Rules" for delineating the TAZs for which Census will
report the data.
Census has been collecting journey to work data through the American
Community Survey nationwide since 2006 that will go into the CTPP
2006-2010 tabulation. They need all of us FIRST to delineate our TAZs
for them to create the tabulation. So you won't be able to wait to see
the data first in order to determine how best to delineate your TAZs.
Sometime around December of this year, the 2005-2009 5-year dataset will
come out, providing data down to the block group level (2000 census
block group geography), and you may find that useful in determining how
you want to delineate your TAZs. It won't be exactly what you are
looking for geographically, the standard tables will not be as
specifically tailored to transportation modelers, and the data won't be
benchmarked to this year's decennial census like the 2006-2010 dataset
will. But it may give you some useful data.
Pete Swensson, Senior Planner
Thurston Regional Planning Council
2424 Heritage Ct. SW
Olympia, WA 98502
(360) 741-2530 (direct line)
(360) 956-7575 (main desk)
(360) 956-7815 (fax)
swenssp(a)trpc.org
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From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces(a)chrispy.net] On Behalf Of Curt Hutchings
Sent: Friday, October 08, 2010 12:20 PM
To: ctpp-news(a)chrispy.net
Subject: [CTPP] RE: TAZ delineation for CTPP (2006-2010) tabulation
SCHEDULE
Elaine,
Please excuse my ignorance. I have had questions about how the Census
Dept. would collect TAZ data for the Census. I have been waiting for
information like you have provided below. Can you give me any
additional information? We are in the process of modifying our TAZ
structure now and want, If possible to use the new information in this
count. Any thoughts?
Thanks,
From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces(a)chrispy.net] On Behalf Of
Elaine.Murakami(a)dot.gov
Sent: Wednesday, October 06, 2010 10:32 AM
To: ctpp-news(a)chrispy.net
Subject: [CTPP] TAZ delineation for CTPP (2006-2010) tabulation SCHEDULE
At our monthly CTPP Technical meeting last week, April Avnayim of the
Census Bureau Geography Division, gave us an update on the TAZ
delineation software schedule.
November 2010: agencies verify contact names by reviewing file at
Cambridge Systematics ftp site, and report any changes to Liang Long.
December 2010: final delivery of software by Caliper to CB
February 2011: web-based training coordinated with FHWA
January thru March 2011: delivery of software and Census 2010 data and
geographic files on a rolling basis.
Each state will get 3 - 4 months to delineate their TAZ and TADs and
return the files to the Census Bureau.
July 2011: all files MUST be returned to CB Geography Division.
Please note: TAZs for CTPP tabulation do not necessarily match the TAZs
for your travel demand model. Because the ACS sample is small, some
agencies are planning to make the TAZs for CTPP LARGER than their model
TAZs, e.g. combining their model TAZs together. Also, TAZs for CTPP are
census block equivalencies. You will NOT be able to modify the TIGER
segments (which was possible in the CTPP2000). Finally, agencies are
NOT required to define TAZs or TADs. If you do not define TAZs, then
census tracts will be used as the default geography for CTPP (2006-2010)
tabulation. However, even if you do not define TAZs, we recommend that
you create TADs (population threshold of 20,000) by combining census
tracts together.
The TAZ business rules are posted on the FHWA webpage:
http://www.fhwa.dot.gov/ctpp/tazddbrules.htm
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a8848JD_jw26XYDuZXTLuZPtPtFHb5UuoEn8lrxrW0GNecGb5K1FJ54QsLfCQkTD6nCknxNJ
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wq81wi2UQ71cazhEwdPYfDwedECQjqbwUQszDSjhOrovBc>
At our monthly CTPP Technical meeting last week, April Avnayim of the
Census Bureau Geography Division, gave us an update on the TAZ
delineation software schedule.
November 2010: agencies verify contact names by reviewing file at
Cambridge Systematics ftp site, and report any changes to Liang Long.
December 2010: final delivery of software by Caliper to CB
February 2011: web-based training coordinated with FHWA
January thru March 2011: delivery of software and Census 2010 data and
geographic files on a rolling basis.
Each state will get 3 - 4 months to delineate their TAZ and TADs and
return the files to the Census Bureau.
July 2011: all files MUST be returned to CB Geography Division.
Please note: TAZs for CTPP tabulation do not necessarily match the TAZs
for your travel demand model. Because the ACS sample is small, some
agencies are planning to make the TAZs for CTPP LARGER than their model
TAZs, e.g. combining their model TAZs together. Also, TAZs for CTPP are
census block equivalencies. You will NOT be able to modify the TIGER
segments (which was possible in the CTPP2000). Finally, agencies are
NOT required to define TAZs or TADs. If you do not define TAZs, then
census tracts will be used as the default geography for CTPP (2006-2010)
tabulation. However, even if you do not define TAZs, we recommend that
you create TADs (population threshold of 20,000) by combining census
tracts together.
The TAZ business rules are posted on the FHWA webpage:
http://www.fhwa.dot.gov/ctpp/tazddbrules.htm
Typically the reason when data is not available like Bike broken out for
both data sets and the same geography is that the data was collapsed.
The CB uses a statistical test on the data quality for each mode and
if the mode does not pass it is collapsed with other modes. when
looking at ACS data on factfinder you will find tables starting with a B
or C. The C means its a collapsed table.
Nordbo, John - DOT wrote:
> Hello, everyone -
>
> I'm forwarding this question from a colleague.
>
> For Means of Transportation to Work, the 2006-2008 ACS detailed tables by place break out bicycles in a separate line. The same question was asked on the ACS from 2003 to 2005 but there does not seem to be a similar table to download; the 2003-2005 data groups bicycles with taxi cabs, etc.
>
> Can anyone tell me if data for bicycles only is available for 2003-2005, and if so, where/how?
>
> Thanks!
>
>
> John P. Nordbo
> Urban and Regional Planner
> Bureau of Planning and Economic Development
> Wisconsin Department of Transportation
> 4802 Sheboygan Ave Rm 901
> Madison, WI 53707-7913
> ofc: 608.267.7751
> fax: 608.267.0294
>
>
>
> _______________________________________________
> ctpp-news mailing list
> ctpp-news(a)chrispy.net
> http://www.chrispy.net/mailman/listinfo/ctpp-news
>
>
>
--
Ed Christopher
708-283-3534 (V)
708-574-8131 (cell)
FHWA RC-TST-PLN
4749 Lincoln Mall Drive, Suite 600
Matteson, IL 60443
I will be out of the office starting 09/15/2010 and will not return until
10/12/2010.
I will respond to your message when I return. Please contact with Dalia
Leven (dleven(a)camsys.com) for CTPP technical support.
Liang -
I tried downloading by clicking on the MeansofTransportation_v2.csv ( ftp://ftp.camsys.com/temp/outgoing/CTPP/New%20CTPP%20ACS/MeansofTransportat… )
link (3 times) and I get a error message that says 'file not loaded completely'
When I look at the file it has processed as far as Michigan ...
Tom
Tom Mank
Ithaca-Tompkins County Transportation Council
607-274-5583
>>> Liang Long <LLong(a)camsys.com> 7/30/2010 4:58 PM >>>
Hi,
We are pound to announce that CTPP2006-2008 County-toCounty flows using ACS are available for downloading now! The data file also contains CTPP2000 County-to-county flow for users convenience. Two data formats are available: SAS and CVS. A detailed note for dataset is also available.
Check it out now!
ftp://ftp.camsys.com/temp/outgoing/CTPP/New%20CTPP%20ACS/
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.comwww.camsys.com
This came out from the census bureau today and I thought might folks
might be interested.
------------
The U.S Census Bureau is pleased to announce a redesign of the American
Community Survey (ACS) website. See the latest in new information for
survey respondents, easy access to ACS data, and clear explanations to
commonly asked questions.
Take a look at the redesigned website online at www.census.gov/acs. We
welcome any questions or feedback on the new site.
We look forward to providing you up-to-date information about the ACS
program and future data releases. If you do not want to receive updates
about the ACS, or if you want to receive updates only for particular
topics, please use the “Unsubscribe” or “Manage Preferences” links below.
Regards,
American Community Survey staff
American Community Survey – New Data Every Year
www.census.gov/acs
Questions about the ACS?
Contact Us
--
Ed Christopher
Federal Highway Administration
4749 Lincoln Mall Drive, Suite 600
Matteson, IL 60443
708-283-3534 (v)
708-574-8131 (c)
Hello All
Apologies for cross-posting. Cambridge Systematics, Inc. (CS) is working on
a NCHRP task to improve employment data for transportation planning. The
purpose of the task is to understand and describe both the Quarterly Census
of Employment and Wages (QCEW) [or ES-202] and the Longitudinal Employer
Household Dynamics (LEHD) data in a manner that enhances their utility and
accessibility to transportation planning agencies. More details about the
project can be found here:
http://144.171.11.40/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=2823
So where do you come in? I am interested in talking to MPOs and DOTs who are
* very confident* about the quality of their employment data and have
enhanced their employment data (assuming that the QCEW data is their main
source) through either primary data collection/verification or via other
secondary sources such as Dun & Bradstreet or InfoUSA (to name a few) or a
combination of the two. If you are willing to share your employment data, CS
will compare your employment data to the QCEW data by NAICS industry
categories and will document the findings. BLS is also interested in making
the QCEW data useful to more groups so if you agree, the results of our
analysis will be shared with BLS so that any lessons learnt from MPOs and
DOTs can be used to improve the quality of the QCEW data. Hopefully we can
have a positive feedback cycle that benefits all parties and gets us better
data.
Please get in touch with me offline (contact details below) so as to avoid
cluttering this mailing list. If there is interest i will share the findings
with this list (after getting all the appropriate permissions to share).
Thanks in Advance.
Sincerely,
Krishnan
--
Krishnan Viswanathan
Cambridge Systematics, Inc.
1566 Village Square Boulevard, Suite 2
Tallahassee, FL 32309
tel 850 219 6388 fax 850 219 6389
e-mail kviswanathan(a)camsys.com
The Federal Register notice from the Census Bureau is now posted.
The due date for comments is November 22.
You may want to listen to Mike Ratcliffe's web presentation from June 11, 2010 that is available at: http://ctpp.transportation.org/Pages/webinardirectory.aspx
----
The Census Bureau announces publication of the "Proposed Urban Area
Criteria for the 2010 Census" in the Federal Register of August 24, 2010,
available on the Federal Register's website at
<http://www.gpoaccess.gov/fr/>. The Census Bureau is seeking public
comment on these proposed criteria. Comments, suggestions, or
recommendations regarding the criteria should be submitted in writing, no
later than November 22, 2010, to Timothy Trainor, Chief, Geography
Division, U.S. Census Bureau, Washington, DC 20233-7400.
The Census Bureau's urban-rural classification is fundamentally a
delineation of geographical areas, identifying individual urbanized areas
of 50,000 or more people and urban clusters of at least 2,500 and less than
50,000 people; "rural" encompasses all population and territory not
included in urban areas. The Census Bureau's urban areas represent densely
developed territory, and encompass residential, commercial, and other
non-residential urban land uses. Additional information about the Census
Bureau's urban-rural classification is available on the Census Bureau's
website at <http://www.census.gov/geo/www/ua/urbanruralclass.html>.
The proposed urban area criteria for the 2010 Census as well as summaries
of the proposed changes, are available on the Census Bureau's website at <
http://www.census.gov/geo/www/ua/2010urbanruralclass.html>.
Changes proposed for the 2010 Census include:
· Use of census tracts as analysis units in the initial phase of
delineation
· Potential return to a maximum jump distance of 1.5 miles (the
distance was increased to 2.5 miles in the Census 2000 criteria).
· Use of land use/land cover data to identify territory containing
non-residential urban land uses or land cover that restricts urban
development, such as marshland and wetlands.
· Lowering the minimum number of enplanements (departing passengers)
from 10,000 to 2,500 to qualify airports for inclusion in urban
areas.
· Elimination of the central place concept.
· Requirement that, in addition to at least 2,500 total population, an
area must contain at least 1,500 persons residing outside
institutional group quarters to qualify as urban.
· Splitting urban agglomerations of 1,000,000 or more population based
on metropolitan statistical area boundaries, or, in New England,
along metropolitan New England city and town area boundaries.
For further information about the Census Bureau urban-rural classification,
or the proposed criteria for the 2010 Census, please contact Vincent Osier,
Chief, Geographic Standards and Criteria Branch, Geography Division, U.S.
Census Bureau, via e-mail at vincent.osier(a)census.gov or telephone at
301-763-9039.