27 Dec
2010
27 Dec
'10
8:48 a.m.
Does anyone know when the census will release mode of transportation to
work by smaller workplace geographies than place? I was disappointed
that the 2005-2009 ACS didn't have it. Coming up with a work trip mode
split for downtown is something people ask us about all the time.
Thanks.
* * * * * * * * * * * * * * * * * * * * * * * *
Anna Flintoft, PTP
Transportation Planner
Department of Public Works - Transportation Planning and Engineering
City of Minneapolis
Room 301, City of Lakes Building
309 2nd Avenue South
Minneapolis, MN 55401
(612) 673-3885 (office)
(612) 269-9410 (cell)
anna.flintoft(a)ci.minneapolis.mn.us
* * * * * * * * * * * * * * * * * * * * * * * *
27 Dec
27 Dec
12:01 p.m.
Hi Everyone! Hope you had a relaxing weekend!
Tables for small geography at the WORKPLACE. The ACS tables for
2005-2009 (5 - year summary) do NOT have small geography "for workplace
geography." This kind of table will be available in the CTPP 5-year
(2006-2010) which we expect in 2012. The reason is that the Census
Bureau's regular geocoding for workplaces only goes down to county and
place. About 25% of responses do not have sufficient detail for block
level geocoding, therefore an imputation routine is required to report
workplace at tract or blockgroup geography. We call this imputation
routine "extended workplace allocation" and the work is currently being
developed for the CTPP. Once it is in place for the CTPP 2006-2010, we
hope that the Census Bureau will be able to apply it for the ACS
standard products.
Historically, the CTPP was the only decennial census "long form" product
that included tabulation for workplace geography and for the flow
between home and work. I was glad to see that the ACS Office started to
include workplace tabulations in the ACS standard table set.
Elaine Murakami
FHWA Office of Planning, Wash DC
206-220-4460 (in Seattle)
As you probably know, the CTPP 2006-2010 will have additional small area
data that is synthetic or "modeled." This is NCHRP 08-79 project, in
progress by Westat. This work is to avoid the heavy data suppression
we expected given the CB requirement to protect individual
confidentiality, and some of the small shares of specific commute modes
that increase the probability of matching to a unique record. The job
is to develop models that retain the characteristics of the original
data, so that the resulting data is still usable for transportation
planning, but still protects individual confidentiality. Because the
work is done at the Census Bureau, the perturbed data can be compared to
the original data.
From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Flintoft, Anna E.
Sent: Monday, December 27, 2010 6:49 AM
To: ctpp-news(a)chrispy.net
Subject: [CTPP] mode to work by small workplace geographies
Does anyone know when the census will release mode of transportation to
work by smaller workplace geographies than place? I was disappointed
that the 2005-2009 ACS didn't have it. Coming up with a work trip mode
split for downtown is something people ask us about all the time.
Thanks.
* * * * * * * * * * * * * * * * * * * * * * * *
Anna Flintoft, PTP
Transportation Planner
Department of Public Works - Transportation Planning and Engineering
City of Minneapolis
Room 301, City of Lakes Building
309 2nd Avenue South
Minneapolis, MN 55401
(612) 673-3885 (office)
(612) 269-9410 (cell)
anna.flintoft(a)ci.minneapolis.mn.us
* * * * * * * * * * * * * * * * * * * * * * * *
28 Dec
28 Dec
8:36 a.m.
I recently got the following question from our bike and ped coordinator.
I'm a bit rusty as I have not used census in a while so I thought I'd
throw it out there for all you census experts to see how you would
respond.
What dataset is the best to look at to see how many people within a
project area do not take a car to work and/or own a car?
Mark
<Elaine.Murakami(a)dot.gov>
Sent by: ctpp-news-bounces(a)chrispy.net
12/27/2010 01:20 PM
Please respond to
ctpp-news(a)chrispy.net
To
<ctpp-news(a)chrispy.net>
cc
Subject
RE: [CTPP] mode to work by small workplace geographies
Hi Everyone! Hope you had a relaxing weekend!
Tables for small geography at the WORKPLACE. The ACS tables for 2005-2009
(5 ? year summary) do NOT have small geography ?for workplace geography.?
This kind of table will be available in the CTPP 5-year (2006-2010) which
we expect in 2012. The reason is that the Census Bureau?s regular
geocoding for workplaces only goes down to county and place. About 25% of
responses do not have sufficient detail for block level geocoding,
therefore an imputation routine is required to report workplace at tract
or blockgroup geography. We call this imputation routine ?extended
workplace allocation? and the work is currently being developed for the
CTPP. Once it is in place for the CTPP 2006-2010, we hope that the Census
Bureau will be able to apply it for the ACS standard products.
Historically, the CTPP was the only decennial census ?long form? product
that included tabulation for workplace geography and for the flow between
home and work. I was glad to see that the ACS Office started to include
workplace tabulations in the ACS standard table set.
Elaine Murakami
FHWA Office of Planning, Wash DC
206-220-4460 (in Seattle)
As you probably know, the CTPP 2006-2010 will have additional small area
data that is synthetic or ?modeled.? This is NCHRP 08-79 project, in
progress by Westat. This work is to avoid the heavy data suppression we
expected given the CB requirement to protect individual confidentiality,
and some of the small shares of specific commute modes that increase the
probability of matching to a unique record. The job is to develop models
that retain the characteristics of the original data, so that the
resulting data is still usable for transportation planning, but still
protects individual confidentiality. Because the work is done at the
Census Bureau, the perturbed data can be compared to the original data.
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]
On Behalf Of Flintoft, Anna E.
Sent: Monday, December 27, 2010 6:49 AM
To: ctpp-news(a)chrispy.net
Subject: [CTPP] mode to work by small workplace geographies
Does anyone know when the census will release mode of transportation to
work by smaller workplace geographies than place? I was disappointed that
the 2005-2009 ACS didn't have it. Coming up with a work trip mode split
for downtown is something people ask us about all the time.
Thanks.
* * * * * * * * * * * * * * * * * * * * * * * *
Anna Flintoft, PTP
Transportation Planner
Department of Public Works - Transportation Planning and Engineering
City of Minneapolis
Room 301, City of Lakes Building
309 2nd Avenue South
Minneapolis, MN 55401
(612) 673-3885 (office)
(612) 269-9410 (cell)
anna.flintoft(a)ci.minneapolis.mn.us
* * * * * * * * * * * * * * * * * * * * * * * *
_______________________________________________
ctpp-news mailing list
ctpp-news(a)chrispy.net
http://www.chrispy.net/mailman/listinfo/ctpp-news
9:31 a.m.
For ACS 2005-2009, table B08301 has means of transportation to work
including car only, carpool, and various types of public transportation.
Just watch those MOE's.
Mara Kaminowitz
GIS Analyst
.........................................................................
Baltimore Metropolitan Council
Offices at McHenry Row
1500 Whetstone Way
Suite 300
Baltimore, MD 21230
410-732-0500 ext. 1030
<mailto:mkaminowitz@baltometro.org> mkaminowitz(a)baltometro.org
<http://www.baltometro.org/> www.baltometro.org
_____
From: Mark.Byram(a)dot.state.oh.us [mailto:Mark.Byram@dot.state.oh.us]
Sent: Tuesday, December 28, 2010 9:37 AM
To: ctpp-news(a)chrispy.net
Subject: RE: [CTPP] mode to work by small workplace geographies
I recently got the following question from our bike and ped coordinator. I'm
a bit rusty as I have not used census in a while so I thought I'd throw it
out there for all you census experts to see how you would respond.
What dataset is the best to look at to see how many people within a project
area do not take a car to work and/or own a car?
Mark
9:48 a.m.
See the table B08141 "Means Of Transportation To Work By Vehicles Available".
I believe this is the one you are looking for.
Kyeongsu Kim
Census and Travel Survey
NY Metropolitan Transportation Council
199 Water Street 23rd fl
New York, NY 10038
kkim(a)dot.state.ny.us
1-212-383-7233
From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of
Mara Kaminowitz
Sent: Tuesday, December 28, 2010 10:32 AM
To: ctpp-news(a)chrispy.net
Subject: RE: [CTPP] mode to work by small workplace geographies
For ACS 2005-2009, table B08301 has means of transportation to work including car only,
carpool, and various types of public transportation. Just watch those MOE's.
Mara Kaminowitz
GIS Analyst
.........................................................................
Baltimore Metropolitan Council
Offices at McHenry Row
1500 Whetstone Way
Suite 300
Baltimore, MD 21230
410-732-0500 ext. 1030
mkaminowitz@baltometro.org<mailto:mkaminowitz@baltometro.org>
www.baltometro.org
<http://www.baltometro.org/>
________________________________
From: Mark.Byram(a)dot.state.oh.us [mailto:Mark.Byram@dot.state.oh.us]
Sent: Tuesday, December 28, 2010 9:37 AM
To: ctpp-news(a)chrispy.net
Subject: RE: [CTPP] mode to work by small workplace geographies
I recently got the following question from our bike and ped coordinator. I'm a bit
rusty as I have not used census in a while so I thought I'd throw it out there for all
you census experts to see how you would respond.
What dataset is the best to look at to see how many people within a project area do not
take a car to work and/or own a car?
Mark
5063
days inactive
5064
days old
4 comments
5 participants
participants (5)
-
Elaine.Murakami＠dot.gov -
Flintoft, Anna E. -
Kim, Kyeongsu (DOT) -
Mara Kaminowitz -
Mark.Byram＠dot.state.oh.us