CTPP January 2011

ctpp@listserv.transportation.org

40 participants
35 discussions

RE: [CTPP] Proposed Criteria and Guidelines for PUMAs responses are due FEB 28

by Elaine.Murakami＠dot.gov

Dear Everyone -- I am just re-iterating Mike's note. Some of the reasons that we want the transportation community to pay attention to PUMA criteria are: a. For Census 2000, the participation of transportation agencies in the PUMA delineation process was spotty, and therefore, the PUMAs defined in coordination with the CB's State Data Center program often were not useful for transportation planning, e.g. a county might be broken up into City A, City B and "rest of County" which looked like a cookie with 2 holes. The proposed criteria is to use census tracts and counties as the building blocks. b. PUMAs used to be primarily used with the Public Use Microdata Sample (PUMS), but PUMAs are now an important tabulation geography which meet the Census Bureau's threshold for annual reporting from the American Community Survey. Since counties and places often do not meet the 1-year threshold of 65,000 population, using PUMAs provides a geographic coverage without holes. I hope you will take this opportunity to provide your thoughts to the Census Bureau. And, when the actual delineation occurs, I hope that you will work together with your State's Data Center. http://www.census.gov/sdc/network.html Elaine Murakami FHWA Office of Planning 206-220-4460 -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces(a)chrispy.net] On Behalf Of michael.r.ratcliffe(a)census.gov Sent: Monday, January 03, 2011 12:27 PM To: ctpp-news(a)chrispy.net Subject: [CTPP] Proposed Criteria and Guidelines for PUMAs for the 2010Census and the ACS Proposed Criteria and Guidelines for Public Use Microdata Areas (PUMAs) for the 2010 Census and the American Community Survey The Census Bureau announces publication of the "Proposed Public Use Microdata Area (PUMA) Criteria and Guidelines for the 2010 Census and American Community Survey" available on the Census Bureau’s website at http://www.census.gov/geo/puma/puma2010.html . The Census Bureau is seeking public comment on these proposed criteria and guidelines. Comments, suggestions, or recommendations regarding the criteria should be submitted in writing, no later than February 28, 2011 to Timothy Trainor, Chief, Geography Division, U.S. Census Bureau, Washington, DC 20233-7400. The Census Bureau's 2010 PUMAs will be used to present 2010 Census decennial Public Use Microdata Sample (PUMS) data, American Community Survey (ACS) PUMS data, and ACS estimates. PUMA delineations are subject to population threshold, specific building block geography, geographic nesting, and PUMA contiguity criteria. Proposed changes for 2010 PUMAs include: § Only one level of PUMA geography will be delineated (comparable to the 5-percent PUMAs for Census 2000). § Each PUMA must have a population of at least 100,000 persons at the time it is delineated, and must maintain a minimum population of 100,000 throughout the decade. § Each PUMA-county part must meet a minimum population threshold of 2,400 persons. § Counties and census tracts will be the only geographic “building blocks” for 2010 PUMAs. Additional information about the history of PUMAs, as well as summaries of the proposed changes are available on the Census Bureau's website at http://www.census.gov/geo/puma/puma2010.html . To obtain further information concerning the Census Bureau’s proposed 2010 PUMA criteria, 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 by telephone at 301-763-3056. Michael R. Ratcliffe Assistant Division Chief, Geocartographic Products and Criteria Geography Division U.S. Census Bureau 4600 Silver Hill Road/ MS-7400 Washington, DC 20233-7400 301-763-8977 michael.r.ratcliffe(a)census.gov

13 years, 2 months

RE: [CTPP] 2000 and 2006-08 work trip comparison question.

by Weinberger

The CB does not recommend comparing an ACS based data set to a CB Long Form based data set. The 2000 data represent a point in time estimate, the ACS data represent a period estimate. Furthermore, the Census Bureau recommends not comparing period estimates with overlapping years. Penelope Weinberger CTPP Program Manager AASHTO 202-624-3556 http://ctpp.transportation.org/Pages/default.aspx <http://ctpp.transportation.org/Pages/default.aspx> It's just as bad to not make a plan as to blindly follow the one you already have. From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces(a)chrispy.net] On Behalf Of Seidensticker, Dan Sent: Friday, January 28, 2011 4:18 PM To: (ctpp-news(a)chrispy.net) Subject: [CTPP] 2000 and 2006-08 work trip comparison question. We downloaded the2006-2008 ACS county-to-county worker flow for Dane County, Wisconsin from http://ctpp.transportation.org/Pages/3yrdas.aspx. The question we now have...can that data be compared to the county-to-county 2000 CTPP work trips to determine any statistically significant increase/decrease? If so, how would one calculate the margin of error? Dan Seidensticker GIS Specialist Madison Area Transportation Planning Board: A Metropolitan Planning Organization (MPO) City of Madison Planning Unit 121 S. Pinckney Street, Suite 400 Madison, WI 53703 Voice: 608-266-9119 Fax: 608-261-9967 Email: dseidensticker(a)cityofmadison.com www.MadisonAreaMPO.org <http://www.madisonareampo.org/>

13 years, 2 months

[CTPP] 2000 and 2006-08 work trip comparison question.

by Seidensticker

We downloaded the2006-2008 ACS county-to-county worker flow for Dane County, Wisconsin from http://ctpp.transportation.org/Pages/3yrdas.aspx. The question we now have...can that data be compared to the county-to-county 2000 CTPP work trips to determine any statistically significant increase/decrease? If so, how would one calculate the margin of error? Dan Seidensticker GIS Specialist Madison Area Transportation Planning Board: A Metropolitan Planning Organization (MPO) City of Madison Planning Unit 121 S. Pinckney Street, Suite 400 Madison, WI 53703 Voice: 608-266-9119 Fax: 608-261-9967 Email: dseidensticker(a)cityofmadison.com<mailto:dseidensticker(a)cityofmadison.com> www.MadisonAreaMPO.org<http://www.madisonareampo.org/>

13 years, 2 months

RE: [CTPP] RE: TAZ software training: WEB ONLY scheduled for Friday, Feb 25 and Monday, Feb 28

by Liang.Long＠dot.gov

Hi, Curt I did get a confirmation email which says I have successfully registered for the CTPP TAZ Delineation webniar. I would suggest you re-register and double check your email address is correct. Hope this helps! Liang Long Federal Highway Administration Room 74-440 1200 New Jersey, SE Washington, DC 20590 tel 202 366 6971 fax 202 493 2198 e-mail liang.long(a)dot.gov <mailto:liang.long(a)dot.gov> ________________________________ From: ctpp-news-bounces(a)chrispy.net on behalf of Curt Hutchings Sent: Fri 1/28/2011 10:44 AM To: ctpp-news(a)chrispy.net Cc: llong(a)camsys.com Subject: [CTPP] RE: TAZ software training: WEB ONLY scheduled for Friday, Feb 25 and Monday, Feb 28 Elaine, I have gone through the registration procedure for the training. Will there be a notice of confirmation sent out? I could not tell, by submitting the registration, if the process was successful or not. I want to make sure that I am on board with you for this. Please let me know if there is anything else I need to do or if I am in good shape. Thanks, email signature 09<https://webmail3.dot.gov/exchange/Liang.Long/Drafts/RE:%20[CTPP]%20RE:%20TA…> From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces(a)chrispy.net] On Behalf Of Elaine.Murakami(a)dot.gov Sent: Thursday, January 13, 2011 4:25 PM To: ctpp-news(a)chrispy.net Subject: [CTPP] TAZ software training: WEB ONLY scheduled for Friday, Feb 25 and Monday, Feb 28 As you know, TAZ delineation by State DOTs and MPOs will occur very soon, with software distribution in March/early April and files returned to the CB by mid-July. The software is being tested by volunteer State DOTs and MPOs starting from Friday, Jan 14 thru Feb 2. Thank you to all the volunteers! We do not need any additional software testers. We have two web training events scheduled. REGISTRATION IS REQUIRED. Please make sure that you capture the full http:// <http://console.mxlogic.com/redir/?EzDAkQQn3q8WWqbVI06rLRPhOUe7c8CzBBYTsTqqO…> address, in case the listserv breaks it up. You need the address including webconfid=22433, or webconfid=21975 I have reserved 300 spaces for each day, so there should be enough room for everyone. If you are unavailable on those days, the sessions will be recorded and available for later viewing. The same training will occur on each day, so please sign up for only one. The web meeting software has been upgraded, therefore, the email with the confirmation of your registration will have a link to check the functionality on your computer. Friday, 2/25/2011, from 10 a.m. - noon EASTERN: Registration URL: https://www.nhi.fhwa.dot.gov/resources/webconference/web_conf_learner_reg.a… <http://console.mxlogic.com/redir/?khPOaqqbxJ4ttd5YSjDdqymokW1eneAP6Yxmv4qCs…> Monday, 2/28/2011, from 2 - 4 p.m. EASTERN: Registration URL: https://www.nhi.fhwa.dot.gov/resources/webconference/web_conf_learner_reg.a… <http://console.mxlogic.com/redir/?a8VV5dd5MSyeKCy-r9PCJhbcat0DbDipzugHfydje…> Question: why is the time to do this only 3 months? Answer: For the TAZ and TAD delineation, it is important to be able to use the TIGER files with the 2010 geography and 2010 population counts. The 2010 population counts will be released to the public on a flow basis starting in March 2011, so we have to wait until these data are available to begin TAZ and TAD delineation. If the 5-year CTPP using 2006-2010 ACS records will be tabulated for TAZs and TADs, the TAZ and TAD delineations need to be completed quickly and returned to the CB Geography Division (GEO) 3 months after the agencies receive their files (no later than July 2011). This provides GEO with sufficient time to QC the submissions, produce the necessary files so that ACS records will get TAZ/TAD identifiers, and create TIGER/Line shapefiles for TAZ/TAD geography. If the TAZs and TADs are not delineated within this time frame, the CTPP tabulation could be delayed for another year, that is, Fall 2013. Question: are there strict thresholds on either residential population or workplace population? Answer: No. The software will give a warning message, but will still allow you to define TAZs below the recommended "threshold." (The FAQ will include more discussion about this topic.) We are working on an FAQ document on TAZs and will post it on the AASHTO CTPP page. http://ctpp.transportation.org/Pages/taz.aspx <http://console.mxlogic.com/redir/?54sYyCCyUrh7njhvdw0XjmmWstxhqIpXelos01Mbq…> Elaine Murakami FHWA Office of Planning 206-220-4460

13 years, 2 months

[CTPP] TAZ software training: WEB ONLY scheduled for Friday, Feb 25 and Monday, Feb 28

by Elaine.Murakami＠dot.gov

As you know, TAZ delineation by State DOTs and MPOs will occur very soon, with software distribution in March/early April and files returned to the CB by mid-July. The software is being tested by volunteer State DOTs and MPOs starting from Friday, Jan 14 thru Feb 2. Thank you to all the volunteers! We do not need any additional software testers. We have two web training events scheduled. REGISTRATION IS REQUIRED. Please make sure that you capture the full http:// address, in case the listserv breaks it up. You need the address including webconfid=22433, or webconfid=21975 I have reserved 300 spaces for each day, so there should be enough room for everyone. If you are unavailable on those days, the sessions will be recorded and available for later viewing. The same training will occur on each day, so please sign up for only one. The web meeting software has been upgraded, therefore, the email with the confirmation of your registration will have a link to check the functionality on your computer. Friday, 2/25/2011, from 10 a.m. - noon EASTERN: Registration URL: https://www.nhi.fhwa.dot.gov/resources/webconference/web_conf_learner_re g.aspx?webconfid=22433 Monday, 2/28/2011, from 2 - 4 p.m. EASTERN: Registration URL: https://www.nhi.fhwa.dot.gov/resources/webconference/web_conf_learner_re g.aspx?webconfid=21975 Question: why is the time to do this only 3 months? Answer: For the TAZ and TAD delineation, it is important to be able to use the TIGER files with the 2010 geography and 2010 population counts. The 2010 population counts will be released to the public on a flow basis starting in March 2011, so we have to wait until these data are available to begin TAZ and TAD delineation. If the 5-year CTPP using 2006-2010 ACS records will be tabulated for TAZs and TADs, the TAZ and TAD delineations need to be completed quickly and returned to the CB Geography Division (GEO) 3 months after the agencies receive their files (no later than July 2011). This provides GEO with sufficient time to QC the submissions, produce the necessary files so that ACS records will get TAZ/TAD identifiers, and create TIGER/Line shapefiles for TAZ/TAD geography. If the TAZs and TADs are not delineated within this time frame, the CTPP tabulation could be delayed for another year, that is, Fall 2013. Question: are there strict thresholds on either residential population or workplace population? Answer: No. The software will give a warning message, but will still allow you to define TAZs below the recommended "threshold." (The FAQ will include more discussion about this topic.) We are working on an FAQ document on TAZs and will post it on the AASHTO CTPP page. http://ctpp.transportation.org/Pages/taz.aspx Elaine Murakami FHWA Office of Planning 206-220-4460

13 years, 2 months

[CTPP] CTPP Data Access Software up and running

by Weinberger

Hi All, It looks like the CTPP Data Access Software is up and running at: http://ctpp.transportation.org/Pages/3yrdas.aspx Thanks for your patience and please let me know if you have any new problems. Penelope

13 years, 3 months

RE: [CTPP] Please help your data community re: PUMAs

by Patty Becker

In Michigan, and I'm sure in many other states, MPOs are SDC affilates. They should automatically be included in PUMA delineation. Patty Becker At 07:17 PM 1/19/2011, you wrote: >I am getting anecdotal remarks about whether or not SDCs have been >open to working with the transportation data community, e.g. State >DOTs and MPOs, about PUMA delineation. I think that if a few of you >could provide some EXAMPLES of GOOD working relationships, maybe we >can reduce the problems in the next round. > >Some questions to consider: >After 2000, how did the SDC do outreach with the data community to >get input into PUMA delineation? >What are the SDCs' plans for outreach for the next round? >Has the MPO or the State DOT participated in the SDC program as an >affiliate? >Did the transportation data community participate in the 2010 Census >tract delineation? > >State's Data Center contact list: >http://www.census.gov/sdc/network.html > >You don't have to write a book, just a couple of paragraphs would >still be helpful! > >Elaine Murakami >FHWA Office of Planning >206-220-4460 > > >_______________________________________________ >ctpp-news mailing list >ctpp-news(a)chrispy.net >http://www.chrispy.net/mailman/listinfo/ctpp-news ------------------------------------------------------------------------------------------------- Patricia C. (Patty) Becker 248/354-6520 APB Associates/SEMCC FAX 248/354-6645 28300 Franklin Road Home 248/355-2428 Southfield, MI 48034 pbecker(a)umich.edu

13 years, 3 months

RE: [CTPP] RE: TAZ software training vs. not using the TAZ software

by Goldman

Mostly likely.........either Mazda 6 or old VW wagon. Greg Goldman, Planner CAPITAL AREA METROPOLITAN PLANNING ORGANIZATION 512.974.2138 | greg.goldman(a)campotexas.org <mailto:greg.goldman(a)campotexas.org> 505 Barton Springs Rd | Austin, TX 78704 ________________________________ From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces(a)chrispy.net] On Behalf Of Flinner, Mark (DOT) Sent: Thursday, January 20, 2011 12:37 PM To: ctpp-news(a)chrispy.net Subject: RE: [CTPP] RE: TAZ software training vs. not using the TAZ software Thank you. From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces(a)chrispy.net] On Behalf Of Elaine.Murakami(a)dot.gov Sent: Wednesday, January 19, 2011 5:33 PM To: ctpp-news(a)chrispy.net Cc: jonathan.ehrlich(a)metc.state.mn.us; geo.taz.list(a)census.gov; Faella.tom(a)co.la-crosse.wi.us; mark.filipi(a)metc.state.mn.us Subject: RE: [CTPP] RE: TAZ software training vs. not using the TAZ software Hi Mark - 1. The Census Bureau Geography Division will need a block equivalency file. Perhaps the CB geo staff can answer the question of whether the TAZ Instruction will include a FILE LAYOUT for the output files. If so, then it seems to me that you SHOULD be able to do the TAZ delineation OUTSIDE of the MTPS TAZ module software, but it would NOT be the PREFERRED method. The software has checking features, e.g. completeness, contiguity, etc, such that if you make your own file using the new TIGER files, it will not have the same quality control features. 2. What other purposes of "Census TAZs and TADs". The current CTPP is funded to include the 3-year (2006-2008) tabulation and the 5-year (2006-2010) tabulation, but depending on how things go, future 3-year and/or 5-year CTPP tabulations are possible if someone wants to pay for them. We think that the Census Bureau should have made a consistent geographic tabulation unit for the 20,000 population threshold (for the 3-year ACS), so that there could be complete coverage, instead of the "swiss cheese" coverage using counties and places, but they didn't and haven't. So, this is OUR opportunity to do something about it, and maybe we can convince the CB that these units could be an ACS 3-year tabulation geography in the future. The PUMAs (100,000 population threshold) provide a consistent geographic tabulation unit for the 1-year ACS, but how they have been defined has not always been useful to transportation planners. As you know, PUMAs were not designed to be tabulation units, but have become tabulation geographic units in the ACS. 3. No one is required to define Census TAZs. If you think that defining Census TAZs is too much work for the value you will get from CTPP, you can just say to use census tracts, or block groups for CTPP. However, we still would recommend that you define TADs, by combining tracts, for the reason listed above. Elaine From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces(a)chrispy.net] On Behalf Of Flinner, Mark (DOT) Sent: Wednesday, January 19, 2011 2:46 PM To: ctpp-news(a)chrispy.net Cc: jonathan ehrlich; Tom Faella; mark.filipi(a)metc.state.mn.us Subject: [CTPP] RE: TAZ software training vs. not using the TAZ software Is there anything to prevent an MPO from creating their own shape files for Census TAZ or Census TAD boundary/ Block Equivalencies assuming they have already obtained 2010 TIGER boundary sets? Also, we am planning a Census TAZ delineation workshop on February 7th to discuss issues associated with nesting model TAZs within Census TAZs given the relatively low populations of most of our MPO model TAZs. I had hoped to acquaint people with the software environment prior to the training sessions at the end of the month but understand that we are not a testing state. I also expect a discussion of the complexities of obtaining CTPP special tabulation data then needing to reallocate the data to model TAZ geographies. Is there anything you can share with us to assist in these areas? I have also received a question of what other uses (besides the one-time use of obtaining CTPP data) the census TAZ and TAD geographies have beyond the census year. LEHD On the Map comes to mind... other uses? Thank you. From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces(a)chrispy.net] On Behalf Of Elaine.Murakami(a)dot.gov Sent: Thursday, January 13, 2011 5:25 PM To: ctpp-news(a)chrispy.net Subject: [CTPP] TAZ software training: WEB ONLY scheduled for Friday, Feb 25 and Monday, Feb 28 As you know, TAZ delineation by State DOTs and MPOs will occur very soon, with software distribution in March/early April and files returned to the CB by mid-July. The software is being tested by volunteer State DOTs and MPOs starting from Friday, Jan 14 thru Feb 2. Thank you to all the volunteers! We do not need any additional software testers. We have two web training events scheduled. REGISTRATION IS REQUIRED. Please make sure that you capture the full http:// address, in case the listserv breaks it up. You need the address including webconfid=22433, or webconfid=21975 I have reserved 300 spaces for each day, so there should be enough room for everyone. If you are unavailable on those days, the sessions will be recorded and available for later viewing. The same training will occur on each day, so please sign up for only one. The web meeting software has been upgraded, therefore, the email with the confirmation of your registration will have a link to check the functionality on your computer. Friday, 2/25/2011, from 10 a.m. - noon EASTERN: Registration URL: https://www.nhi.fhwa.dot.gov/resources/webconference/web_conf_learner_re g.aspx?webconfid=22433 <https://www.nhi.fhwa.dot.gov/resources/webconference/web_conf_learner_r eg.aspx?webconfid=22433> Monday, 2/28/2011, from 2 - 4 p.m. EASTERN: Registration URL: https://www.nhi.fhwa.dot.gov/resources/webconference/web_conf_learner_re g.aspx?webconfid=21975 <https://www.nhi.fhwa.dot.gov/resources/webconference/web_conf_learner_r eg.aspx?webconfid=21975> Question: why is the time to do this only 3 months? Answer: For the TAZ and TAD delineation, it is important to be able to use the TIGER files with the 2010 geography and 2010 population counts. The 2010 population counts will be released to the public on a flow basis starting in March 2011, so we have to wait until these data are available to begin TAZ and TAD delineation. If the 5-year CTPP using 2006-2010 ACS records will be tabulated for TAZs and TADs, the TAZ and TAD delineations need to be completed quickly and returned to the CB Geography Division (GEO) 3 months after the agencies receive their files (no later than July 2011). This provides GEO with sufficient time to QC the submissions, produce the necessary files so that ACS records will get TAZ/TAD identifiers, and create TIGER/Line shapefiles for TAZ/TAD geography. If the TAZs and TADs are not delineated within this time frame, the CTPP tabulation could be delayed for another year, that is, Fall 2013. Question: are there strict thresholds on either residential population or workplace population? Answer: No. The software will give a warning message, but will still allow you to define TAZs below the recommended "threshold." (The FAQ will include more discussion about this topic.) We are working on an FAQ document on TAZs and will post it on the AASHTO CTPP page. http://ctpp.transportation.org/Pages/taz.aspx <http://ctpp.transportation.org/Pages/taz.aspx> Elaine Murakami FHWA Office of Planning 206-220-4460

13 years, 3 months

[CTPP] CTPP data product based on 2006 - 2008 3-year American Community Survey (ACS) Data Access Software LAUNCHED

by Weinberger

Hi All, The link below will take you to a page to click through to the new CTPP data product based on 2006 - 2008 3-year American Community Survey (ACS) Data Access Software. It is live and ready to go. http://ctpp.transportation.org/Pages/3yrdas.aspx The CTPP data product based on 2006 - 2008 3-year American Community Survey (ACS) Data is designed to help transportation analysts and planners understand where people are commuting to and from, and how they get there. The information is organized by where workers live, where they work, and by the flow between those places. The link below will take you to the CTPP data product based on 2006 - 2008 3-year ACS Data. The Data Product is a special tabulation of census data designed by transportation planners, for transportation planners. The Data Product contains commuter flows, not available in other data sets. This Data Product is limited to geographies with populations 20,000 or greater. It contains over 200 tabs and cross tabs. Penelope Weinberger CTPP Program Manager AASHTO 202-624-3556 http://ctpp.transportation.org/Pages/default.aspx <http://ctpp.transportation.org/Pages/default.aspx> It's just as bad to not make a plan as to blindly follow the one you already have.

13 years, 3 months

FW: [CTPP] Please help your data community re: PUMAs

by Elaine.Murakami＠dot.gov

From: Marie Bousfield [mailto:mbousfield(a)rcn.com] Sent: Thursday, January 20, 2011 10:34 AM To: Murakami, Elaine (FHWA) Subject: RE: [CTPP] Please help your data community re: PUMAs Hi Elaine, I defined the pumas by myself and gave the definitions to Sue Ebetsch (SDC) and to Cats for their comments. No changes were proposed. Sue had prepared a file layout so she could paste Chicago into her Illinois file. There are some census tracts that are split by the city boundary. I have forgotten if pumas allow partial census tracts. I kept the same puma boundary definitions that were used in 1970, 1980, and 1990 because for me it was important to have: 1. No change over time so that one can calculate change. 2. That the pumas observe existing smaller geographies such as neighborhoods and community areas. 3. For statistical reasons, that the pumas be as homogeneous as possible. The pumas were important for preparing the 2030 forecasts. Max Dieber from the Northeastern Illinois Planning Commission prepared the forecast and used among other things a socio economic model. He used the pumas for the geographic unit. Pumas were just the right size, not too small and not too big and they came with consistent data. I foresee that the CTPP and the pumas will be more important in 2010 than before because economic development has become so much more important. Marie -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces(a)chrispy.net] On Behalf Of Marie Bousfield Sent: Thursday, January 20, 2011 7:26 AM To: ctpp-news(a)chrispy.net Subject: RE: [CTPP] Please help your data community re: PUMAs The use of puma level data differs greatly for rural areas where several counties are needed to make a puma to central cities that include several pumas. As a demographer for the City of Chicago, I used puma data regularly. Some years, a regional transportation agency (CATS) defined the pumas but in 2000 I did it. I felt that it was too important to the City’s planning department to leave this function to transportation planners. The SDC coordinator, Sue Ebetsch, was very helpful. All I want to say is that more than transportation planners have a stake in the puma definitions. Thanks for keeping the CTPP listserv public. Marie Bousfield Retired but still reading your emails -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces(a)chrispy.net] On Behalf Of Elaine.Murakami(a)dot.gov Sent: Wednesday, January 19, 2011 6:17 PM To: ctpp-news(a)chrispy.net Subject: RE: [CTPP] Please help your data community re: PUMAs I am getting anecdotal remarks about whether or not SDCs have been open to working with the transportation data community, e.g. State DOTs and MPOs, about PUMA delineation. I think that if a few of you could provide some EXAMPLES of GOOD working relationships, maybe we can reduce the problems in the next round. Some questions to consider: After 2000, how did the SDC do outreach with the data community to get input into PUMA delineation? What are the SDCs' plans for outreach for the next round? Has the MPO or the State DOT participated in the SDC program as an affiliate? Did the transportation data community participate in the 2010 Census tract delineation? State's Data Center contact list: http://www.census.gov/sdc/network.html You don't have to write a book, just a couple of paragraphs would still be helpful! Elaine Murakami FHWA Office of Planning 206-220-4460

13 years, 3 months

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CTPP January 2011