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2560 discussions

by Chuck Purvis

TO: CTPP-News RE: Summary File #4 Summary File #4 data is now being released, and is available on American FactFinder. (http://factfinder.census.gov/) SF4 data for five states was released today (4/29/03): Delaware, Hawaii, New Jersey, Vermont and Wisconsin. Data is being released on a flow basis. The main SF4 news release page is here: http://www.census.gov/Press-Release/www/2003/SF4.html Full documentation (775 pages in PDF format) for Summary File #4 is available here: http://www.census.gov/prod/cen2000/doc/sf4.pdf The Summary File #4 is based on long form, sample data and is provided down to the census tract level. This product is similar to Summary File #2 (SF #2 is based on short form, 100% data; SF #4 is based on long form, sample data). Similar to SF #2, the minimum population threshold for SF #4 is 100 persons and 50 unweighted cases. This means that there may be no data reported for very small population groups at very small (tract) or even moderate size (place, county) geographic levels. All tables are iterated for total population and 335 race/hispanic/ancestry groups: 132 race categories; 78 American Indian / Alaskan Native groups; 39 Hispanic/Latino groups; and 86 ancestries (e.g., Irish, Greek, Russian, etc.) There are 323 total tables in SF #4: 213 "PCT" tables (Population, Census Tract), and 110 "HCT" tables (Housing, Census Tract). The commute-related tables in SF #4 are PCT55 through PCT60. The household vehicle tables in SF #4 are HCT32 through HCT34. The Summary File #4 can be useful to researchers and planners who are interested in the socio-economic characteristics of persons in their region or state by race/hispanic/ancestry. Some examples of analyses: 1. Group quarters population (institutional, non-institutional) by age group by detailed race/hispanic/ancestry group (PCT9) 2. Linguistic isolation by detailed race/hispanic/ancestry groups (PCT41) 3. Migration Status (Where Lived in 1995) by detailed race/hispanic/ancestry groups (PCT49,PCT50) 4. Means of Transportation to Work by detailed race/hispanic/ancestry groups (PCT51) 5. Average Commute Time by detailed race/hispanic/ancestry groups (PCT58) 6. Disability Status by sex by age by detailed race/hispanic/ancestry groups (PCT69) 7. Detailed Industry of Employment by sex by detailed race/hispanic/ancestry groups (PCT85) 8. Detailed Occupation of Employee by sex by detailed race/hispanic/ancestry group (PCT86) 9. Household Income Characteristics by detailed race/hispanic/ancestry group (PCT88-PCT90) 10. Vehicles per Household by detailed race/hispanic/ancestry group (HCT32, HCT34) 11. Households by Tenure by Household Income by detailed race/hispanic/ancestry group (HCT35) Good luck to those working with this new data! Chuck Purvis, MTC ************************************************************** Charles L. Purvis, AICP Principal Transportation Planner/Analyst Metropolitan Transportation Commission 101 Eighth Street Oakland, CA 94607-4700 (510) 464-7731 (office) (510) 464-7848 (fax) www: http://www.mtc.ca.gov/ Census WWW: http://www.bayareacensus.ca.gov/ **************************************************************

23 years, 2 months

PUMS 1-Percent Schedule Updates

by Chuck Purvis

TO: CTPP-News The Census Bureau's release schedule for the 1-percent Public Use Microdata Sample (PUMS) has been updated: http://www.census.gov/Press-Release/www/2003/PUMS.html Data for five states was released last Wednesday: New York, Florida, Rhode Island, Vermont and Wyoming. Data for New Jersey is tentatively scheduled for release tomorrow, April 30th. Data for an additional 10 states plus the District of Columbia is tentatively scheduled for release Wednesday, May 7th: Alabama, California, D.C., Illinois, Kansas, Maryland, Nebraska, Oklahoma, Ohio, Puerto Rico and Texas. We do not know when the remaining states will be released, so it's advised to keep close tabs on the main PUMS page, provided above. PUMS Technical Documentation is here: http://www.census.gov/prod/cen2000/doc/pums.pdf For more on the use of PUMS in transportation planning, visit our TRB Subcommittee's web page at: http://www.census.gov/prod/cen2000/doc/pums.pdf Chuck Purvis, MTC ************************************************************** Charles L. Purvis, AICP Principal Transportation Planner/Analyst Metropolitan Transportation Commission 101 Eighth Street Oakland, CA 94607-4700 (510) 464-7731 (office) (510) 464-7848 (fax) www: http://www.mtc.ca.gov/ Census WWW: http://www.bayareacensus.ca.gov/ **************************************************************

23 years, 2 months

Census News Brief #7 (long post)

by ed christopher

Census Bureau Releases Revised Census 2000 Accuracy Estimates; ACS Hearing Scheduled; Legislative and Budget Updates; Census Advisory Committee Meetings; and more. The Census Bureau has released place-level Census 2000 A.C.E. Revision II estimates on its Internet site, representing the second set of small area, unofficial population numbers produced from the post-census coverage measurement survey. Last fall, the Bureau publicly released block-level, statistically adjusted numbers under court order in a Freedom of Information Act case brought by two Oregon state legislators; those data were based on the Bureaus initial review of the Accuracy and Coverage Evaluation results. Census Bureau Director C. Louis Kincannon said last month that while the Revision II estimates represent the most accurate assessment of Census 2000 coverage to date, unresolved concerns about the coverage measurement and adjustment methodologies led him to reaffirm the agencys prior decision not to use the A.C.E.-adjusted figures as a base for calculating population estimates throughout the decade. The adjusted data are available on the Census Bureaus web site at http://www.census.gov/dmd/www/pdf/pp-60r.pdf. A discussion of technical issues related to the A.C.E. Revision II estimates is available at http://www.census.gov/dmd/www/pdf/ACETechAssess.pdf. Revised estimates of undercount and overcount by race and ethnicity are available at http://www.census.gov/dmd/www/pdf/pp-02r.pdf. (Also see the April 7, 2003, Census News Brief for a summary of the revised estimates of Census 2000 accuracy.) House Subcommittee to Review ACS Plans: The newly-created House Subcommittee on Technology, Information Policy, Intergovernmental Relations, and the Census will hold its first oversight hearing on the census, focusing on plans for the American Community Survey (ACS). The hearing is scheduled for Tuesday, May 13, at 10:00 a.m., in Room 2154 Rayburn House Office Building. The Government Reform committee panel, chaired by Rep. Adam Putnam (R-FL), has not released a witness list for the hearing. (See the April 7, 2003, Census News Brief for a full list of subcommittee members.) ACS Update and Clarification: The April 7 2003, Census News Brief reported that the Census Bureau is testing voluntary response in the American Community Survey in 31 test sites. The Bureau also is evaluating the effects of voluntary response in the Supplementary Survey, an annual national sample of 700,000 homes designed to assess ACS methodology and data quality. While most households in the current test surveys are being notified that their participation is voluntary, a small control group of homes continues to receive instructions that the law requires their response. The U.S. Department of House and Urban Development (HUD) has issued a report assessing the potential consequences for HUD programs of moving from census long form to ACS data. The American Community Survey: Challenges and Opportunities for HUD (September 27, 2002), prepared under contract by ORC Macro, identified 25 department activities that currently use long form data, including funding formulas for community development and Indian housing block grants, and federal housing fair share allocations; eligibility determinations for low income housing tax credits and mortgage revenue bonds; monitoring and enforcement of fair housing laws; and Fair Market Rent calculations. The report concluded that the ACS will benefit both HUD and its clients, particularly because more current data will improve all HUD activities that rely on long form information, as well as create opportunities for new uses of ACS annually-updated estimates. Using ACS data in place of long form data, the authors found, will create no problems for current HUD applications that HUD users will not be able to solve in timely and technically acceptable ways. A third conclusion acknowledged that using ACS instead of long form data will present challenges for some HUD applications and require the department to anticipat[e] problems and devis[e] solutions. The report discusses thirteen issues that HUD will face related to the transition from census long form to ACS data, including treatment of group quarters, differences between point-in-time versus averaged estimates, less precise data due to the smaller ACS sample size, and phased-in availability of small area estimates. The authors suggest that using ACS data will require more HUD staff resources, to address technical and programmatic challenges associated with shifting to a new set of data and to take advantage of annually available data. The HUD report is available on-line at http://www.huduser.org/publications/polleg/acs.html. Budget update: The House and Senate reached agreement on a budget resolution (H.Con.Res. 95) for fiscal year 2004 (FY04), with both chambers adopting the conference report on April 11 along mostly party lines. The annual bill is Congress blueprint for federal spending; it does not become law or require the Presidents signature. The final resolution provides $784.5 billion in total discretionary spending for FY04, a 2.4 percent increase over current year levels (excluding the recently passed supplemental appropriations bill covering primarily war-related activities). Of that amount, $400.1 billion would be allocated to defense programs, while $384.4 billion would be divided among all other discretionary federal activities. House and Senate negotiators were able to agree on overall spending limits after putting off a final decision on the amount of any future tax cuts that are a centerpiece of President Bushs economic plan. The House and Senate Appropriations Committees will now allocate discretionary funds among the thirteen regular appropriations accounts. The Census Bureau is funded through the Commerce, Justice, State, and The Judiciary appropriations bill. Legislative Update Census Bills Introduced: Rep. Carolyn B. Maloney (R-NY), former senior Democrat on the House census oversight subcommittee, has introduced three bills related to the Census Bureau and its programs. The measures were referred to the House Committee on Government Reform. H.R. 1541, with seven original Democratic cosponsors, would amend the Census Act (title 13, United States Code) to provide for a just apportionment of the U.S. House of Representatives. The bill would strike an exception related to congressional apportionment in a provision of the law encouraging the use of statistical sampling in censuses and surveys. The U.S. Supreme Court ruled in 1999 that the exception in section 195 of the Census Act prohibited the use of statistical sampling methods to compile state population totals used to apportion seats in Congress among the 50 states (Department of Commerce v. U.S. House of Representatives, 525 U.S. 316). H.R. 1571 would set a five-year fixed term for the Director of the Census Bureau, and specify that the director would report directly to the Secretary of Commerce. Under current law, the director is appointed by the President with the advice and consent of the U.S. Senate, and serves at the pleasure of the President. When a President leaves office, the director traditionally steps down to allow the new Administration to nominate its own candidate for the post, especially if the incoming President is from the opposing political party. Most federal statistical agency heads, such as the Commissioner of Labor Statistics, serve a fixed term of office (they can be re-nominated by the President). Section 21 of the Census Act also says that the census director shall perform such duties imposed by law, regulations, or orders of the Secretary; the Maloney bill would add a direct line of authority to the Commerce Secretary. Under the Departments current organizational structure, the Census Bureau is part of the Economic and Statistics Administration, headed by an Under Secretary of Commerce for Economic Affairs. H.R. 1619, the Census of Americans Abroad Act, would mandate a test census by September 30, 2004, of Americans living abroad, and inclusion of federal personnel (including members of the armed forces) and private American citizens residing overseas in the 2010 and subsequent censuses. The Census Bureau already is planning to test the feasibility of counting private American citizens abroad and requested $2.5 million to conduct the test in Kuwait, France, and Mexico in FY04. The bill also would require the Commerce Secretary to recommend counting methods and the purposes for which the count of overseas Americans should be used, by June 30, 2005, and to conduct subsequent tests of overseas enumeration methods in 2006. Finally, H.R. 1619 instructs the Secretary to include Americans living abroad in the 2010 decennial census and to use those counts in ways the Secretary considers feasible and appropriate. In Census 2000, the Bureau counted members of the armed forces and civilian federal employees (and their dependents) stationed overseas on Census Day, using administrative records. The numbers were included only in state population totals used to reapportion the U.S. House of Representatives. The State of Utah unsuccessfully sued the Census Bureau after post-census analyses showed that the overseas counts cost Utah an additional seat in Congress; the seat went to North Carolina instead. Military and federal government personnel abroad also were counted for apportionment purposes in the 1990 census. Two original cosponsors signed on to H.R. 1619: Rep. Michael McNulty (D-NY) and Rep. Thomas Petri (R-WI). Both legislators served on the now-defunct Subcommittee on Census and Population (later renamed the Subcommittee on Census, Statistics, and Postal Personnel) in the early 1990s. Census Advisory Committees To Meet in May: The Census Bureaus five Race and Ethnic Advisory Committees (REACs, which represent the African American, American Indian and Alaska Native, Asian, Hispanic, and Native Hawaiian and Other Pacific Islander populations) will meet jointly on May 6 7, followed by a meeting of the Commerce Departments Decennial Census Advisory Committee (DCAC) on May 8 9. The meetings will be held at the Sheraton Reston Hotel, 11810 Sunrise Valley Drive, Reston, VA (703-620-9000). The REACs will meet from 8:00 am 5:30 pm on May 6, and from 8:00 am 12:30 pm on May 7, when the five committees will meet in concurrent sessions and develop recommendations. The DCAC will meet from 8:30 am 5:15 pm on May 8, and from 8:30 am 12:00 pm on May 9. All proceedings are open to the public. The agendas for both meetings include general updates from Commerce Department and Census Bureau officials; discussion of plans to reengineer the 2010 census, which include replacing the traditional long form with the American Community Survey and administering a short form-only census; recent revisions to Census 2000 Accuracy and Coverage Evaluation estimates; and working group sessions on small populations, language, data quality, and race and ethnicity. Census News Briefs are prepared by Terri Ann Lowenthal, an independent consultant in Washington, DC. Please direct questions about the information in this News Brief to Ms. Lowenthal at 202/484-2270 or by e-mail at terriann2k(a)aol.com. Thank you to the Communications Consortium Media Center for posting the News Briefs on the Census 2000 Initiative web site, at www.census2000.org. Please feel free to circulate this information to colleagues and other interested individuals.

23 years, 2 months

1% PUMS First Release @ 12:01 A.M. on 4/23/03 for FL, NY, RI, VT, and WY

by Chuck Purvis

(Forwarded from State Data Center listserv, of general interest) FYI.. The Census Bureau will place the 1% PUMS state files on the ftp and http sites on Wednesday 4/23/03 at 12:01 AM for: FL, NY, RI, VT, and WY There will be no embargo period for this or future 1% PUMS releases. Subsequent releases will be on Tuesdays at 12:01 AM. The 1% PUMS data will be released for all of the states by May 2003. CLO will provide the SDC network with the CD-ROMs after May 2003. The web sites are: For ftp, the url will be ftp://ftp2.census.gov/census_2000/datasets/PUMS/OnePercent For http, the url will be http://www2.census.gov/census_2000/datasets/PUMS/OnePercent Renée Jefferson-Copeland Customer Liaison Office Census Bureau

23 years, 2 months

Increasing Reliance on the Auto Documented in the Latest Survey

by C. Kenneth Orski

For your information -- the text of a new Innovation Brief on the NHTS C. Kenneth Orski korski(a)erols.com tel: 301.299.1996 fax: 301.299.4425 http://www.innobriefs.com

23 years, 2 months

Re: [CTPP] 1980 County-to-County Worker Flows

by Chuck Purvis

Bob and others: The 1970, 1980 and 1990 data on county-to-county total commuter flows is available on the Department of Commerce, Bureau of Economic Analysis web site at: http://www.bea.doc.gov/bea/regional/reis/jtw/ Anything finer grained that county, or county-to-county by means of transportation to work, would have to be extracted from your old 1970 UTP, 1980 UTPP and 1990 CTPP data files. Note that the 1980 Census workplace information was coded for only half of the long form sample. So, essentially the sampling rate for the 1980 commute flows is about 1-in-12, not the 1-in-6 sampling rate we have from the 1990 and 2000 Censuses. Also note that the largest county-of-work in the 1970 Census is "Not Reported." So, take care in how you report/allocate/impute the 1970 data, if at all. Chuck Purvis, MTC >>> "Bob Paddock" <bob.paddock(a)METC.STATE.MN.US> 04/18/03 07:40AM >>> Pardon my asking this, but are county-to-county worker flows available from the 1980 census datafiles? I know that it goes back a bit and is not the latest and greatest from the US Census. I have some flow data but am looking for additional counties to include in my review. Bob Paddock Metropolitan Council Minneapols-St.Paul

23 years, 2 months

1980 County-to-County Worker Flows

by Bob Paddock

Pardon my asking this, but are county-to-county worker flows available from the 1980 census datafiles? I know that it goes back a bit and is not the latest and greatest from the US Census. I have some flow data but am looking for additional counties to include in my review. Bob Paddock Metropolitan Council Minneapols-St.Paul

23 years, 2 months

Funding for Research on the Socio-Economic Change in Cities

by Chuck Purvis

Please forward the following announcement of research grants to anyone who has performed interesting research on urban issues. Summary: HUD's Office of Policy Development and Research wishes to fund from seven to ten empirical research projects on trends in urban areas, that is, social, economic, demographic, and fiscal change in cities. Research grants of up to $40,000 each would allow HUD to commission a variety of in-depth and high-quality research projects. For example, the release of the Census 2000 long-form data presents an excellent opportunity to inform us on the long-run dynamics of population, housing, income, and transportation in urban areas. Research using other current data sets, such as the County Business Patterns Special Extracts, FBI Crime Statistics, or Building Permits Data found in the State of the Cities Data Systems or concerning other topics such as the fiscal condition of cities, crime, poverty, or economic development would also be encouraged. These research projects would provide HUD with a basic understanding of how cities are changing, what factors are driving change, and the impact of public policy on change. Available Funds: $300,000 from HUD's FY 2002 research and technology appropriation. HUD anticipates funding seven to ten studies on these topics; studies will be funded through cooperative agreements, up to a maximum of $40,000. Eligible Applicants: Academic and not-for-profit institutions located in the U.S., State and local governments, and federally recognized Indian tribes are eligible to apply. For-profit businesses also are eligible; however, they are not allowed to earn a fee. Application Deadline: May 27, 2003. Further Information: see FR-4780-N-01 (Wednesday, March 26, 2003) in the Federal Register (http://www.access.gpo.gov/su_docs/fedreg/a030326c.html). You may contact: Dr. Alastair McFarlane, Economic Development and Public Finance Division, at the address above, telephone (202) 708-0426, extension 5901, or Mr. Patrick Tewey, Grants Officer, 202-708-1796 extension 4098 (these are not toll-free numbers). Hearing- and speech-impaired persons may access the above telephone number via TTY by calling the toll-free Federal Information Relay Service at 1-800-877-8339.

23 years, 2 months

Definitions of Disability

by Suzanne O'Neill

Between 1990 and 2000 there are large increases in the population of people with disabilities as related to transportation. The questions asked on the long form changed substantially and the data is presented differently. In 1990, the data was presented as people who have either mobility or self-care disabilities (I suppose you chose one or both). In 2000, I believe the question was formatted to ask if people had disabilities that affected their ability to travel outside the home. The data is presented by type of disability including Sensory, Physical, Mental, Self-Care, Go-Outside-Home, and Employment disabilities. I am wondering if anyone knows how much of the increase in the number of people reporting "Go-Outside-Home Disabilities" over the 1990 "Mobility Limitations" is due to the way in which the questions were asked and how much is due to increases in this population? The elderly have a higher incidence of disabilities so as the elderly population increases one would expect an increase in the numbers of people with "Mobility" or "Go-Outside-Home" disabilities. Also, the incidence of certain kinds of disabilities has been increasing in new-borns. In the past I have used formulas to calculate transit demand for the general population or for the population of the elderly and disabled. They are calibrated based on the 1990 definitions. When I use the 2000 numbers, there are some definite problems - the formula for Elderly and Disabled trip demand is higher than the Total trip demand. How might I need to adjust these to account for differences in the definitions? Has anyone worked on adjusting or re-calibrating demand formulas based on the new definitions and actual ridership in communities? Suzanne O'Neill TransitPlus, Inc.

23 years, 2 months

PUMS news

by Chuck Purvis

News from the Census Bureau on the 1-percent PUMS file. From their 4/11/03 Products Update listserv e-mail: "HOT TIP I am eagerly awaiting the Census 2000 microdata. What can you tell me about it? Starting later this month the Census Bureau will begin releasing state files with 1 percent of the microdata records for households that answered a long form (the sample questionnaire). Microdata records show the actual responses made by households -- less any identifying information that would violate the confidentiality of the respondent's answers. These files allow users to create their own tabulations. The files will be available online in ASCII via FTP. Once all states are released, we will release the full 1-percent microdata on a CD-ROM to be sold for $50 by the Customer Services Center. The disc will come with Beyond 20/20 software facilitating the use of the disc. Later in the year the Census Bureau will release a 5-percent microdata file, again on a flow basis online in ASCII via FTP. Once all states are released, we will release both the 1-percent and the 5-percent microdata files on one DVD to be sold by the Customer Services Center. For more details on these files and their geographic identifiers, go to < http://www.census.gov/population/www/cen2000/pums.html>. " ****************************************************************************** For more on how to use PUMS in transportation planning, visit the TRB Census Data for Transportation Planning subcommittee page at: http://www.trbcensus.com/pums.html Chuck Purvis MTC

23 years, 2 months

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