CTPP June 2004

ctpp@listserv.transportation.org

8 participants
11 discussions

by Srinivasan

All- The U.S. Census Bureau last week released results from a study comparing the ACS data from 1999 - 2001 in the 36 test counties to the corresponding Census 2000 sample data. These estimates, along with measures of data quality, were compared at the county and census tract level. In addition to the analytical reports, the associated data tables and files are available on the ACS web site. To access these reports, please visit http://www.census.gov/acs/www/AdvMeth/acs_census/ These reports are probably the first look at small area data from ACS, and are very important for all of us to examine. To start a discussion on these reports, I quickly prepared a one page summary of *my observations* on each report (See attached MS Word document "Report_Summary.doc"). Please note that I wrote this just for discussion purposes, and I hope I did not mis-characterize any of the reports. For those of you preparing responses to the Federal Register Notice on ACS - Current, and Proposed Tables, the last date for comments is July 14, 2004. http://www.census.gov/acs/www/product_review/acs_survey/fed_reg.htm Nanda Srinivasan <<report_summary.doc>>

19 years, 10 months

[CTPP] FW: BEA Gross Metro Product

by Murakami

I am forwarding an email from the Association of Public Data Users (APDU) listserv. Although it isn't specific to Census data, I thought it might be of interest, particularly to larger MPOs. Elaine Murakami, FHWA -----Original Message----- From: Andrew Reamer [mailto:reamer(a)thecia.net] Sent: Mon 6/14/2004 7:04 PM To: APDU Listserv Cc: Subject: [APDU] BEA Gross Metro Product The following article regarding the possibility of a BEA Gross Metro Product series appeared in the June issue of Stat-Scan, the monthly newsletter I co-publish for EconData.Net (www.econdata.net). Please review and consider responding to BEA with your thoughts. Gross Metro Product: A Data Series Whose Time Has Come? BEA Wants to Hear >From You. The regional accounts folks at the U.S. Bureau of Economic Analysis are a pretty inventive bunch, creating highly useful regional data series on a budgetary shoestring. They produce one of EconData.Net's favorite data series, the Regional Economic Information System (REIS), which provides the nation's most comprehensive tally of income and employment at the state, metro, and county level. About ten years ago, BEA's enterprising analysts unveiled Gross State Product (GSP), estimates of state-level economic activity as measured by value added, for 63 industries and the state as a whole. Typically, GSP estimates have been released 17 months after the end of the calendar year; BEA has partial funding to reduce that lag to 6 months. While the GSP acceleration effort is underway, BEA staff are planning future regional data enhancements, one of which, potentially, is producing annual estimates of Gross Metropolitan Product (GMP), by industry. However, with budgetary constraints and pressing priorities on other topics (e.g., measuring offshoring activity), funding for a GMP series is difficult to obtain. As practicing regional analysts ourselves, we know that a GMP series would be a highly valuable addition to the practitioners' and researchers' analytic toolbox. At present, we don't truly know the size and composition of our regional economies as they unfold over time, a glaring hole in our understanding. REIS provides total income figures, but total income reflects only about two-thirds of regional value-added activity. While Global Insight (formerly DRI-McGraw-Hill) annually produces GMP estimates on behalf of the U.S. Conference of Mayors (see http://www.usmayors.org/uscm/news/press_releases/documents/metroeconreport_0 20604.pdf), the relative accuracy of these estimates can be questioned (of necessity, they use a top-down rather than bottom-up methodology) and disaggregation by industry and component is not provided. Now is your chance to provide your opinion. Would an annual Gross Metropolitan Product series be of value to you? As EconData.Net has access to one of the largest data-using communities in the country, we ask you to let BEA hear your thoughts. A GMP series will not appear unless data users express strong support. A critical mass of positive words from you and your colleagues will have influence on top BEA executives, the BEA Advisory Council, and appropriate Congressional committees as funding decisions are made for upcoming fiscal years. So: If you think that the availability of GMP would be of value, please take a moment and write an e-mail to that effect to John Kort, Chief, BEA Regional Economic Analysis Division, at john.kort(a)bea.gov. It'd be helpful, we think, to say a bit about the nature of your work and interests and how you would use a GMP series to enhance them. Please cc EconData.Net (comments(a)econdata.net) so we can keep track of the communications. If you want to get a sense of how a GMP series would look, you can explore the GSP web site (http://www.bea.gov/bea/regional/gsp.htm). In a couple months, once BEA absorbs your missives, we'll let you know how they've been received; if a funding request for GMP develops "legs," we'll periodically update you on progress, and may ask you to weigh in again, if necessary. Historically, the regional data community has not been a vocal, well-organized constituency that is effective in seeing its needs are addressed in federal budget and program decisions. Consider this request an experiment in making ourselves heard. _______________________________________________ APDUmem mailing list APDUmem(a)apdu.org http://apdu.org/mailman/listinfo/apdumem_apdu.org

19 years, 10 months

[CTPP] CTPP CBD Mode shares DISCUSSION from TMIP

by Murakami

Dear CTPP listserv members-- For those of you who also subscribe to TMIP listserv, you can delete this message! There has been an interesting discussion on TMIP listserv comparing regional model results to CTPP 2000 Part 2 (place of work) results, particularly on transit shares for HBW trips. So far, comparisons from San Diego, Dallas-Ft. Worth, San Francisco Bay Area, and Atlanta have been posted. To view the TMIP archives, here is the link. See the topic "CTPP CBD Mode Shares" in the June 2004 folder. http://listserv.tamu.edu/archives/tmip-l.html You may also be interested in helping the TRB urban data committee (ABJ30) with their "Downtown Profile" project. See "Commuting to Downtown" in the CTPP Status Report, April 2004. http://www.fhwa.dot.gov/ctpp/sr0404.htm As those of the us in the survey business like to say, "there is more than one data source." Each source has its benefits and pitfalls. So, for transit shares to CBD, other sources may include: on-board transit surveys, Automatic Passenger Count (APC) counts, O/D estimated from fare machines (generally currently limited to subways) and workplace surveys. One of the benefits of the Census data is the large sample size (1:6 households, nationwide in 2000) and high response rate. However, please remember that the Census is a survey of PERSONS, not TRIPS! And the Census question is for "usual mode used last week." Also, low income neighborhoods tend to have lower response rates than in upper income neighborhoods, similar to other transportation surveys. Elaine Murakami FHWA Office of Planning 206-220-4460 in Seattle

19 years, 10 months

[Fwd: RE: [CTPP] State DOT and MPO Review of CTPP 2000 Part 3 Data]

by ed christopher

I thought this little exchange that was going on "off the list" may help address others questions in this area. see below. -------- Original Message -------- Subject: RE: [CTPP] State DOT and MPO Review of CTPP 2000 Part 3 Data Date: Thu, 10 Jun 2004 12:11:53 -0400 From: "Srinivasan, Nanda" <Nanda.Srinivasan(a)fhwa.dot.gov> To: "Michelle Musser" <musser(a)stcloudapo.org>, <edc(a)berwyned.com>,<phillip.a.salopek(a)census.gov> CC: "Bill Hansen" <hansen(a)stcloudapo.org> Michelle,I passed your question to Elaine Murakami (FHWA) who should be able to tell you more.Defining TAZs into TIGER/Line will depend on when the next CTPP will be produced.The Census Bureau has told us that there will be no long form in 2010, so the next CTPP (if there is one) will need to be based out of the American Community Survey (ACS). The probable schedules have not been thought about yet. ACS has just been started on a nationwide scale, and because it is a continuous survey, we don't expect small area data until 2010.Also, because ACS has a smaller sample size, we don't know the geography at which the data will be meaningful. Currently, we have an NCHRP project examining ACS test site data, and decennial census data. I think we should know much more by the TRB decennial conference in May 2005.Ed/Phil: Do you have anything to add?Nandu -----Original Message----- From: Michelle Musser [mailto:musser(a)stcloudapo.org] Sent: Thursday, June 10, 2004 11:55 AM To: Srinivasan, Nanda; Ed Christopher; phillip.a.salopek(a)census.gov Cc: Bill Hansen Subject: Re: [CTPP] State DOT and MPO Review of CTPP 2000 Part 3 Data Hello - I know that this may be early - but could anyone tell me when MPO's will be required to submit their TAZ boundaries for the 2010 Census? Thanks - Michelle Musser Michelle Musser Planner - GIS Operator Saint Cloud Area Planning Organization 1040 County Road Four Saint Cloud, Minnesota 56303 www.stcloudapo.org

19 years, 10 months

[CTPP] Accessing Part 3 data for TAZs and other detailed geography

by phillip.a.salopek＠census.gov

In my previous message (copied below), I did not provide directions on how to access the most recently loaded Part 3 ASCII data on the BTS TransStats website. We've had some questions about where the taz and other detailed geography flow data can be found, so I'm providing the directions below. 1) Go to www.transtats.bts.dot.gov 2) Click on the CTPP 2000 button on the upper right side of the page 3) On the CTPP 2000 page there are four sections: Part I, Part II, Part III, and Part III Selected. The first Part III section contains data for summary levels from state through census tract. The Part III Selected section contains the State DOT and MPO detailed geography summary levels (see below). 4) To access the State DOT and MPO detailed geography data for Part III, click on the "CTPP 2000 Part III Selected" link. These files contain data for summary levels 942 (State DOT detailed geography) and 944 (MPO detailed geography). Click on the "Download" link, select your state, and then click on the download button to save the file to your computer. The downloaded zip file will contain two zip files within it. One of these contains the documentation files and the other the data files. The zip file with the data in it contains more zip files within it. There will be one file containing the State DOT detailed geography (e.g., mo_ascii.zip for Missouri), and a number of other files, one for each MPO in the state (e.g., mpo1741.zip for the Columbia MPO). If you have any questions about these instructions, please contact either Nanda Srinivasan at nanda.srinivasan(a)fhwa.dot.gov or 202-366-5021 or Clara Reschovsky at clara.a.reschovsky(a)census.gov or 301-763-2454. ----------------------------------------------------------------- Phillip A Salopek To: ctpp-news(a)chrispy.net 05/28/2004 02:45 cc: PM Subject: State DOT and MPO Review of CTPP 2000 Part 3 Data State Departments of Transportation and Metropolitan Planning Organizations: As announced earlier this week, all the CTPP 2000 Part 3 files (journey-to-work flow data) are now available in ASCII format for downloading from the BTS TranStats website at http://www.transtats.bts.dot.gov. Unlike Parts 1 and 2, only these ASCII files will be available for Part 3 in a preliminary version for review by the State DOTs and MPOs. The reason for this is that we will not have a revised version of the CTPP Access Tool (CAT) software that can handle the Part 3 flow data soon enough to be used in the review. We encourage you to download the ASCII files for your area and evaluate the data as soon as you can. To assist you in your review we have provided a data dictionary, Microsoft Access template, and dbase specs file for Part 3. The files in Part 3 are more manageable than the previous CTPP 2000 data because there are fewer tables and the records are therefore shorter. However, there are large numbers of records in some of the files so the databases can still be quite big. Errors that come to our attention based on review of the ASCII files will be fixed before the CAT software version of the data become available. We expect to distribute the CAT software version of the final Part 3 data late this summer. Stay tuned to the CTPP listserve for details. --Phil Salopek Chief, Journey to Work and Migration Statistics Branch U.S. Census Bureau (301) 763-2454

19 years, 10 months

[CTPP] Census Data Workshop in Seattle, Tuesday, July 13.

by Murakami

FHWA, the Census Bureau and WSDOT are sponsoring a free hands-on computer-based workshop on Census data, focusing on the Census Transportation Planning Package (CTPP), other Census 2000 data, and the American Community Survey. Each computer will have two students assigned. We have a few openings remaining. Please contact Seth Stark, starks(a)wsdot.wa.gov for more information. Workshop Overview: Census Transportation Planning Package (CTPP) 2000 On July 13th, Ed Christopher and Elaine Murakami from FHWA, along with Clara Reschovsky from the Census Bureau, will conduct a hands-on computer-based workshop on the Census Transportation Planning Package (CTPP). CTPP contains tabulations by place of residence, place of work, and flows between home and work. Cam McIntosh from the Census Bureau's Seattle Regional Office, and Larry Blain from the Puget Sound Regional Council will also be presenting. CTPP provides comprehensive and cost-effective data, in a standard format, across the United States. Data are tabulated from answers to the Census 2000 long form questionnaire, mailed to one in six U.S. households. Because of the large sample size, the data are reliable and useful for planning at all levels of government. The workshop will include: 1.Basics of Census data: terminology and geography issues; 2.Accessing Census data using several tools, including American FactFinder, CTPP Access Tool, and Public Use Micro Data (PUMS) Access; 3. Analyzing and presenting census data; 4. Troubleshooting the data; 5. Integrating census data with other data for modeling, and other uses; The July 13th workshop will be held at: Seattle Federal Office Building (909 1st Avenue in downtown Seattle) The Workshop will begin at 8:30 a.m. and end by 4:30 p.m.

19 years, 10 months

RE: [CTPP] CTPP Geography Files

by Huntley

Thanks Ed for the link - That's an excellent resource for census geography boundary files. However, I am more interested in the actual geography files that are being shipped with the cd-rom versions of the CTPP Part 1 data. As I understand it geography files are capable of being different from state to state. For example, I know that Missouri is one of the few states that actually had the CTPP data aggregated to a statewide block group coverage - thus, ctpp data exists statewide at the block group level of geography...is this the same for Illinois and Kansas? I don't think that they have the data at that level of geography for the entire state and was hoping to verify this with the boundary files that are being shipped with the cd-roms. Since it doesn't appear that these specific geofiles have been released my second plan is to capture the boundary files of interest for Illinois and Kansas and then join the tabular data from the CTPP to the geography of interest and see what sort of join rates exist - this should then give me a better understanding of the geography files and their extent within each state. Lance -----Original Message----- From: ed christopher [mailto:edc(a)berwyned.com] Sent: Tuesday, June 08, 2004 10:19 AM To: Huntley, Lance Cc: ctpp-news(a)chrispy.net Subject: Re: [CTPP] CTPP Geography Files you might try here. you may have do do it in three steps to get the TAZs for 3 states. http://arcdata.esri.com/data/tiger2000/tiger_download.cfm "Huntley, Lance" wrote: > Hello List, > > I am wondering if there is a way to get the CTPP 2000 > Geography Files via ftp rather than from a CTPP cd-rom? I > need all the boundary files for Missouri, Illinois and > Kansas - I can pull the geofiles for Missouri from my > cd-rom, but I don't have Illinois or Kansas geographies and > need those as well. Any help with this would be greatly > appreciated. > > Thanks, > > Lance Huntley > > Office of Social and Economic Data Analysis > > Columbia, MO 65211 > > 573.884.3909 > > ---------------------------------------------------------------- > _______________________________________________ > ctpp-news mailing list > ctpp-news(a)chrispy.net > http://www.chrispy.net/mailman/listinfo/ctpp-news > -- Ed Christopher Resource Center Planning Team Federal Highway Administration 19900 Governors Drive Olympia Fields, Illinois 60461 708-283-3534 (V) 708-574-8131 (cell) 708-283-3501 (F)

19 years, 10 months

RE: [CTPP] CTPP Geography Files

by Andrew Hayden

Or here http://www.census.gov/geo/www/tiger/index.html -----Original Message----- From: ed christopher [mailto:edc(a)berwyned.com] Sent: Tuesday, June 08, 2004 10:19 AM To: Huntley, Lance Cc: ctpp-news(a)chrispy.net Subject: Re: [CTPP] CTPP Geography Files you might try here. you may have do do it in three steps to get the TAZs for 3 states. http://arcdata.esri.com/data/tiger2000/tiger_download.cfm "Huntley, Lance" wrote: > Hello List, > > I am wondering if there is a way to get the CTPP 2000 > Geography Files via ftp rather than from a CTPP cd-rom? I > need all the boundary files for Missouri, Illinois and > Kansas - I can pull the geofiles for Missouri from my > cd-rom, but I don't have Illinois or Kansas geographies and > need those as well. Any help with this would be greatly > appreciated. > > Thanks, > > Lance Huntley > > Office of Social and Economic Data Analysis > > Columbia, MO 65211 > > 573.884.3909 > > ---------------------------------------------------------------- > _______________________________________________ > ctpp-news mailing list > ctpp-news(a)chrispy.net > http://www.chrispy.net/mailman/listinfo/ctpp-news > -- Ed Christopher Resource Center Planning Team Federal Highway Administration 19900 Governors Drive Olympia Fields, Illinois 60461 708-283-3534 (V) 708-574-8131 (cell) 708-283-3501 (F) _______________________________________________ ctpp-news mailing list ctpp-news(a)chrispy.net http://www.chrispy.net/mailman/listinfo/ctpp-news

19 years, 10 months

[CTPP] CTPP Geography Files

by Huntley

Hello List, I am wondering if there is a way to get the CTPP 2000 Geography Files via ftp rather than from a CTPP cd-rom? I need all the boundary files for Missouri, Illinois and Kansas - I can pull the geofiles for Missouri from my cd-rom, but I don't have Illinois or Kansas geographies and need those as well. Any help with this would be greatly appreciated. Thanks, Lance Huntley Office of Social and Economic Data Analysis Columbia, MO 65211 573.884.3909

19 years, 10 months

[CTPP] cttp060704.wpd

by Margaret Shaw

This e-mail is from: Thabet Zakaria Deputy Director Transportation Planning cttp060704.wpd

19 years, 10 months

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CTPP June 2004