Some background info on worker counts for workplace geographies (Parts 2 and 3 in the CTPP)
2 Jan
2 Jan
8:58 a.m.
New subject: Census 2010 vs 5-year ACS for TAZs
Hello Everyone,
Ive gotten started on our long range transportation plan, and one area we have an issue
with is Census data. We've got 2010 Census data for our population and household
counts, but we will also need the 5-year ACS data of number of households by household
size by household income. We would prefer to use 2010 population counts for the base year
of the model so we've decided there are two options. We could use the 5-year ACS data
for our base model year population and household counts, but that doesn't create a
true picture of 2010. The other option is we could mix datasets and proportionately apply
characteristics of the 5-year ACS data to the 2010 counts. Can anyone give us some
guidance needing to use both datasets on the same project?
Thank you,
Geoff Olson
Transportation Planner
Bi-State Regional Commission
1504 3rd Ave.
P.O. Box 3368
Rock Island, IL 61204
________________________________
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without the permission of the sender. If you received this message in error, please delete
it and notify the sender immediately. Bi-State Regional Commission accepts no
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or malware.
10:13 a.m.
New subject: Census 2010 vs 5-year ACS for TAZs
I think it's OK to apply ACS 08-12 characteristics percentages to 2010
population and housing unit counts. Just keep in mind that the margins of
error in the ACS data are enormous. Yes, I know you have nothing better...
Patty Becker
On Thu, Jan 2, 2014 at 9:58 AM, Geoff Olson <golson(a)bistateonline.org>wrote;wrote:
Hello Everyone,
Ive gotten started on our long range transportation plan, and one area we
have an issue with is Census data. We've got 2010 Census data for our
population and household counts, but we will also need the 5-year ACS data
of number of households by household size by household income. We would
prefer to use 2010 population counts for the base year of the model so
we've decided there are two options. We could use the 5-year ACS data for
our base model year population and household counts, but that doesn't
create a true picture of 2010. The other option is we could mix datasets
and proportionately apply characteristics of the 5-year ACS data to the
2010 counts. Can anyone give us some guidance needing to use both datasets
on the same project?
Thank you,
Geoff Olson
Transportation Planner
Bi-State Regional Commission
1504 3rd Ave.
P.O. Box 3368
Rock Island, IL 61204
------------------------------
This email and all attachments are intended only for the listed
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or otherwise disclose the contents of this email without the permission of
the sender. If you received this message in error, please delete it and
notify the sender immediately. Bi-State Regional Commission accepts no
responsibility for any damages caused by this message, including those
related to viruses or malware.
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--
Patricia C. (Patty) Becker
APB Associates/Southeast Michigan Census Council (SEMCC)
28300 Franklin Rd, Southfield, MI 48034
office: 248-354-6520
home:248-355-2428
pbecker(a)umich.edu
11:14 a.m.
New subject: Census 2010 vs 5-year ACS for TAZs
My recommendation is to use Table H13 (household size from 1 to 7+ persons) from the 2010
Census.
Then, use IPF to adjust the CTPP table (Table A112208 – Household Size (5) by Household
Income (26)) which uses 2006-2010 ACS records, to match the Census-based hhld size
distribution. The CTPP table has 5 categories for household size, but the categories
are: total, 1, 2, 3, and 4+ persons.
If you don’t need the 25 income categories, you might want to use A112208C, which only has
8 income categories (total and 8 categories). The “C” in the table stands for
“compressed”.
Elaine Murakami
FHWA Office of Planning
206-220-4460 (in Seattle)
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Geoff Olson
Sent: Thursday, January 02, 2014 6:59 AM
To: 'ctpp-news(a)chrispy.net'
Subject: [CTPP] Census 2010 vs 5-year ACS for TAZs
Hello Everyone,
Ive gotten started on our long range transportation plan, and one area we have an issue
with is Census data. We've got 2010 Census data for our population and household
counts, but we will also need the 5-year ACS data of number of households by household
size by household income. We would prefer to use 2010 population counts for the base year
of the model so we've decided there are two options. We could use the 5-year ACS data
for our base model year population and household counts, but that doesn't create a
true picture of 2010. The other option is we could mix datasets and proportionately apply
characteristics of the 5-year ACS data to the 2010 counts. Can anyone give us some
guidance needing to use both datasets on the same project?
Thank you,
Geoff Olson
Transportation Planner
Bi-State Regional Commission
1504 3rd Ave.
P.O. Box 3368
Rock Island, IL 61204
________________________________
This email and all attachments are intended only for the listed recipient(s). This message
may contain confidential or privileged information only for use by the listed
recipient(s). Do not forward, post or otherwise disclose the contents of this email
without the permission of the sender. If you received this message in error, please delete
it and notify the sender immediately. Bi-State Regional Commission accepts no
responsibility for any damages caused by this message, including those related to viruses
or malware.
12:01 p.m.
New subject: Census 2010 vs 5-year ACS for TAZs
Geoff,
I cannot provide guidance, but you might find our recent experience helpful. We have used
2010 SF1 data for households by size and ACS 5 year (2006-2010) shares for income. We
chose this approach to be consistent with 2006-2010 ACS PUMS data that we also use, and in
the absence of other information.
Joe
Joseph Huegy, AICP
Director
Travel Behavior Modeling Group
ITRE – NCSU
Box 8601
Raleigh, NC 27695-8601
ph. 919.513.7378
cell 919.606.8634
fax 919.515.8898
email: <mailto:jbhuegy@ncsu.edu> jbhuegy(a)ncsu.edu
web: <http://www.itre.ncsu.edu/> http://www.itre.ncsu.edu
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Geoff Olson
Sent: Thursday, January 02, 2014 9:59 AM
To: 'ctpp-news(a)chrispy.net'
Subject: [CTPP] Census 2010 vs 5-year ACS for TAZs
Hello Everyone,
Ive gotten started on our long range transportation plan, and one area we have an issue
with is Census data. We've got 2010 Census data for our population and household
counts, but we will also need the 5-year ACS data of number of households by household
size by household income. We would prefer to use 2010 population counts for the base year
of the model so we've decided there are two options. We could use the 5-year ACS data
for our base model year population and household counts, but that doesn't create a
true picture of 2010. The other option is we could mix datasets and proportionately apply
characteristics of the 5-year ACS data to the 2010 counts. Can anyone give us some
guidance needing to use both datasets on the same project?
Thank you,
Geoff Olson
Transportation Planner
Bi-State Regional Commission
1504 3rd Ave.
P.O. Box 3368
Rock Island, IL 61204
_____
This email and all attachments are intended only for the listed recipient(s). This message
may contain confidential or privileged information only for use by the listed
recipient(s). Do not forward, post or otherwise disclose the contents of this email
without the permission of the sender. If you received this message in error, please delete
it and notify the sender immediately. Bi-State Regional Commission accepts no
responsibility for any damages caused by this message, including those related to viruses
or malware.
3 Jan
3 Jan
7:48 a.m.
New subject: Census 2010 vs 5-year ACS for TAZs
I have know others to use similar approaches. However, one question that remains, which is
more of a research question is which ACS series to use. 2006 to 2010 or 2008 to 2012? I
can make good arguments to go either way.
Ed C
On Jan 2, 2014, at 12:01 PM, "Joe Huegy"
<jbhuegy(a)ncsu.edu> wrote:
Geoff,
I cannot provide guidance, but you might find our recent experience helpful. We have used
2010 SF1 data for households by size and ACS 5 year (2006-2010) shares for income. We
chose this approach to be consistent with 2006-2010 ACS PUMS data that we also use, and in
the absence of other information.
Joe
Joseph Huegy, AICP
Director
Travel Behavior Modeling Group
ITRE – NCSU
Box 8601
Raleigh, NC 27695-8601
ph. 919.513.7378
cell 919.606.8634
fax 919.515.8898
email: jbhuegy(a)ncsu.edu
web: http://www.itre.ncsu.edu
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Geoff Olson
Sent: Thursday, January 02, 2014 9:59 AM
To: 'ctpp-news(a)chrispy.net'
Subject: [CTPP] Census 2010 vs 5-year ACS for TAZs
Hello Everyone,
Ive gotten started on our long range transportation plan, and one area we have an issue
with is Census data. We've got 2010 Census data for our population and household
counts, but we will also need the 5-year ACS data of number of households by household
size by household income. We would prefer to use 2010 population counts for the base year
of the model so we've decided there are two options. We could use the 5-year ACS data
for our base model year population and household counts, but that doesn't create a
true picture of 2010. The other option is we could mix datasets and proportionately apply
characteristics of the 5-year ACS data to the 2010 counts. Can anyone give us some
guidance needing to use both datasets on the same project?
Thank you,
Geoff Olson
Transportation Planner
Bi-State Regional Commission
1504 3rd Ave.
P.O. Box 3368
Rock Island, IL 61204
This email and all attachments are intended only for the listed recipient(s). This
message may contain confidential or privileged information only for use by the listed
recipient(s). Do not forward, post or otherwise disclose the contents of this email
without the permission of the sender. If you received this message in error, please delete
it and notify the sender immediately. Bi-State Regional Commission accepts no
responsibility for any damages caused by this message, including those related to viruses
or malware.
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4008
days inactive
4026
days old
5 comments
6 participants
participants (6)
-
brian.mckenzie＠census.gov -
Ed Christopher -
Elaine.Murakami＠dot.gov -
Geoff Olson -
Joe Huegy -
Patricia Becker