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New report on (Bay Area) disability trends, based on the American Community Survey

by Chuck Purvis

TO: CTPP-News Listserv This item may be of interest to transportation planners interested in disability statistics from Census 2000 compared to the American Community Survey. The bottom line is that if you are interested in disability statistics, stick with data from the 2003-to-current ACS. The working paper also suggests other national databases that might provide useful information on national/statewide/metro area disability statistics. The Metropolitan Transportation Commission has just released a report entitled "Disability in the San Francisco Bay Area: Comparing Data Between Census 2000 and the American Community Survey 2000-2004." The working paper is available here: http://www.mtc.ca.gov/maps_and_data/datamart/census/Disability_BayArea_Work… The main MTC Census page is here: http://www.mtc.ca.gov/maps_and_data/datamart/census/ MTC and ABAG staff will be working on a re-design of the Bay Area Census web site (http://www.bayareacensus.ca.gov/), to have page or pages devoted to American Community Survey analysis and issues. This is the very first in a long series of possible working papers and data summaries to be based on data from the US Census Bureau's American Community Survey. The abstract from this working paper discusses the purpose and intent of the study: As a characteristic of the general population, disability rates determined by the U.S. Census should not vary much year to year or survey to survey. This paper examines disability data from Census 2000 and the American Community Survey (ACS), years 2000-2004, for the 5 San Francisco Bay Area primary metropolitan statistical areas (PMSA). For most of the PMSAs, statistically significant differences exist between Census 2000 and ACS disability data, particularly for the go-outside-home and employment disability items. Differences in sampling technique, sampling instruments, and information reporting between Census 2000 and ACS data that might account for this variation are discussed. Census 2000 data shows 1.1 million disabled persons (any type of disability) residing in the ninecounty Bay Area. This is 17.6 percent of the Bay Area's population (age 5+). This compares to the 2000 American Community Survey that shows 0.8 million disabled persons (13.1 percent) in the Bay Area. ************************************************************** Charles L. Purvis, AICP Principal Transportation Planner/Analyst Metropolitan Transportation Commission 101 Eighth Street Oakland, CA 94607-4700 (510) 817-5755 (office) [new, 8/1/05] (510) 817-7848 (fax) [new, 8/1/05] www: http://www.mtc.ca.gov/ Census WWW: http://www.bayareacensus.ca.gov/ **************************************************************

20 years, 1 month

December Newsletter

by Ed Christopher

The December issue of the "Status Report" is now posted on line. Included in this issue are several articles relative to the ACS, an update of the census related events at this years January TRB meetings and a review of the CTPP user's survey results. The direct link to the newsletter is http://www.TRBcensus.com/newsltr/sr1205.pdf. In addition to the newsletter, a paper discussing several of the NEW disclosure rules facing the ACS small area data (tracks, block groups and TAZs) is also posted. The direct link to the paper is http://www.TRBcensus.com/notes/small_area_data.pdf. Both of these products plus more can be found at http://www.TRBcensus.com -- Ed Christopher 708-283-3534 (V) 708-574-8131 (cell) FHWA RC-TST-PLN 19900 Governors Dr Olympia Fields, IL 60461

20 years, 2 months

2003 and 2004 PUMS files for ACS will be re-released

by Ed Christopher

Got this from our friends at the Census Bureau... Ed, I have just learned that there will be a user note issued and a re-release of the 2003 and 2004 ACS PUMS files. Inconsistencies in the Veteran's Status items and an error in the recode for ancestry have been found and will be corrected. No estimate of that release date was given. However, I thought that the CTPP community might want to know. -- Celia

20 years, 3 months

New 2004 ACS data on American Factfinder: Missing Tables?

by Chuck Purvis

1. The Census Bureau released the "balance" of the 2004 ACS tabulations on American Factfinder this past Thursday, 11/17/2005. Or so we thought. We're currently wading through the "CTPP Part 1 - like" tables that were just released, but we're concerned about four tables in particular. Can someone at the Census Bureau or USDOT comment on the four tables that are "placeholder tables" in American Factfinder, but don't yet have data? These are the "workplace geography" tables: B08406 Sex of Workers by Detailed Means of Transportation for Workplace Geography B08526 Means of Transportation to Work by Industry for Workplace Geography B08528 Means of Transportation to Work by Class of Worker for Workplace Geography B08534 Means of Transportation to Work by Travel TIme to Work for Workplace Geography Hopefully the data is "coming soon"! 2. A different question about geography in the ACS: when will the Census Bureau convert from the older metropolitan area to the newer metropolitan area definitions? That is, converting from the MSA/PMSA/CMSA geographies to the CBSA/CSA geographies? [My guess is this will change with the release of the 2005 ACS data, next summer, but it would be useful to confirm.] Thanks in advance! Chuck Purvis ************************************************************** Charles L. Purvis, AICP Principal Transportation Planner/Analyst Metropolitan Transportation Commission 101 Eighth Street Oakland, CA 94607-4700 (510) 817-5755 (office) [new, 8/1/05] (510) 817-7848 (fax) [new, 8/1/05] www: http://www.mtc.ca.gov/ Census WWW: http://www.bayareacensus.ca.gov/ **************************************************************

20 years, 3 months

RE: [CTPP] New 2004 ACS data on American Factfinder: Missing Tables?

by Murakami, Elaine

Hi Everyone - here is a DRAFT of my article for the next issue of the CTPP Status Report, which we plan to finalize in early December. So, you will see GAPS but I hope no errors, especially as Phil Salopek has not yet reviewed my draft. "Workplace Geography" now part of ACS Standard Tabulation Package by Elaine Murakami, FHWA The Census Bureau is now issuing tables for workplace geography using ACS data. Previously, the only standard Census product using workplace geography was the County-to-county flow tabulation (put link here). Otherwise, workplace tabulations were part of the CTPP, the special tabulation completed from the AASHTO pooled fund. Already, the Census Bureau has released four Workplace Tables for southeastern States impacted by recent hurricanes (Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, and Texas). By January 2006, __ additional tables at workplace geography will be posted to the ACS webpage. As ACS is a continuous survey with small samples each month, tabulations are currently available only for areas (States, County, Places) with more than 250,000 population. Because the ACS in 2004 was only in a test phase, it is perhaps best to treat this information as training in familiarity with planned ACS products. In late 2006, tabulations for areas with more than 65,000 population will be available, as ACS went into full implementation in 2005. Table Name Residence Workplace Sex by Means of Transportation to Work B08006 B08406 Means of Transportation to Work by Travel Time B08134 B08534 Sex by Place of Work - State and County Level B08007 Aggregate Travel Time to Work by Sex B08013 Means of Transportation to Work by Industry B08526 Means of Transportation to Work by Class of Worker B08528 For a complete list of Workplace Geography tables, please see (put link here to Phil's list? Or link to the CB ACS page Table List) Miami-Dade County Residence Workplace 2000 SF3 ACS 2004 CTPP 2000 ACS 2004 Mode to Work Total 899,323 1,007,975 956,460 1,075,227 Drove Alone 73.8% 78.4% 74.9% 79.2% Carpool 14.6% 9.4% 14.2% 9.3% Transit 5.1% 4.9% 4.7% 4.7% Walk 2.2% 2.0% 2.0% 1.8% Other 1.8% 1.6% 1.6% 1.6% Work at Home 2.7% 3.6% 2.5% 3.4% 1. ACS consistently has less carpooling. From Decennial 2000, Hispanic workers are the most likely to carpool, and that neighborhoods with high Hispanic population have much lower mail-back response rate than White, Non-Hispanic neighborhoods in ACS. Perhaps the 2005 ACS results will be more similar to Decennial 2000 results as higher non-response follow-up field interviewing that began in 2005 should capture Hispanic, Black and Native-American populations more accurately. 2. Census 2000 includes population in Group Quarters. (What do we know about GQ workers in 2000? Nationwide, about 36% of the non-institutionalized Group Quarters population are workers. So there are an estimated 5,900 additional GQ workers in Miami-Dade (didn't want to try to use PUMS to figure this out). So, probably would not make any difference in overall Miami-Dade figures 6000 workers out of 900,000.-might bump up "walk" a little bit, since nationwide, about 40% of workers in group quarters walk to work. -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Chuck Purvis Sent: Monday, November 21, 2005 10:29 AM To: CTPP-News Subject: [CTPP] New 2004 ACS data on American Factfinder: Missing Tables? 1. The Census Bureau released the "balance" of the 2004 ACS tabulations on American Factfinder this past Thursday, 11/17/2005. Or so we thought. We're currently wading through the "CTPP Part 1 - like" tables that were just released, but we're concerned about four tables in particular. Can someone at the Census Bureau or USDOT comment on the four tables that are "placeholder tables" in American Factfinder, but don't yet have data? These are the "workplace geography" tables: B08406 Sex of Workers by Detailed Means of Transportation for Workplace Geography B08526 Means of Transportation to Work by Industry for Workplace Geography B08528 Means of Transportation to Work by Class of Worker for Workplace Geography B08534 Means of Transportation to Work by Travel TIme to Work for Workplace Geography Hopefully the data is "coming soon"! 2. A different question about geography in the ACS: when will the Census Bureau convert from the older metropolitan area to the newer metropolitan area definitions? That is, converting from the MSA/PMSA/CMSA geographies to the CBSA/CSA geographies? [My guess is this will change with the release of the 2005 ACS data, next summer, but it would be useful to confirm.] Thanks in advance! Chuck Purvis ************************************************************** Charles L. Purvis, AICP Principal Transportation Planner/Analyst Metropolitan Transportation Commission 101 Eighth Street Oakland, CA 94607-4700 (510) 817-5755 (office) [new, 8/1/05] (510) 817-7848 (fax) [new, 8/1/05] www: http://www.mtc.ca.gov/ Census WWW: http://www.bayareacensus.ca.gov/ ************************************************************** _______________________________________________ ctpp-news mailing list ctpp-news(a)chrispy.net http://www.chrispy.net/mailman/listinfo/ctpp-news

20 years, 3 months

RE: [CTPP] Part 3 - Installation Errors

by Srinivasan, Nanda

Kevin: This error occurs when you hit the button "Install Database" on the opening flash screen. My advice is NOT to use this button, but create a session with your data path pointing to d:\...\ny folder if NY is your state. The session creation should work just fine. Thank you Nanda Srinivasan -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net]On Behalf Of Kevin Beers Sent: Friday, November 18, 2005 2:53 PM To: ctpp-news(a)chrispy.net Subject: [CTPP] Part 3 - Installation Errors After installing the Viewer Software - when trying to copy Part 3 to a hard drive (for selected geographic areas), has anyone encountered a CODEBASE ERROR or a "Could Not Create Session.ini" error message? Thanks, Kevin D. Beers Transportation Planner - GIS Genesee Transportation Council 50 West Main Street, Suite 8112 Rochester, NY 14614-1227 Phone: (585) 232-6240 Fax: (585) 262-3106 E-mail: kbeers(a)gtcmpo.org http://www.gtcmpo.org

20 years, 3 months

Part 3 - Installation Errors

by Kevin Beers

After installing the Viewer Software - when trying to copy Part 3 to a hard drive (for selected geographic areas), has anyone encountered a CODEBASE ERROR or a "Could Not Create Session.ini" error message? Thanks, Kevin D. Beers Transportation Planner - GIS Genesee Transportation Council 50 West Main Street, Suite 8112 Rochester, NY 14614-1227 Phone: (585) 232-6240 Fax: (585) 262-3106 E-mail: kbeers(a)gtcmpo.org http://www.gtcmpo.org

20 years, 3 months

Re: [CTPP] mean income for bicycle vs walk

by Chuck Purvis

Andy: Ed is correct: the PUMS is the best source of data to differentiate between the household income of bicycle vs walk commuters. Yes, the data is free to download from the Census Bureau's website, but you really need stat software like SAS to SPSS to make sense out of it all. The PUMS DVDs are great if you don't have SAS or SPSS, and if you're comfortable with Beyond 20/20 software. The Beyond 20/20 software on the PUMS DVD is very, very fast and is very well done. Unlike the CTPP CDs and DVDs, the Census PUMS DVD should not be copied, but as Ed suggests, your state data center may have a regular copy that you can have or borrow. Here are the Census 2000 PUMS 5% sample data for the State of California, by "grouped" means of transportation (separated for bicycle vs walk): Mean Household Income (1999 constant dollars): Drive Alone: $85,088 Carpool 2: $73,558 Carpool 3+: $68,587 Transit: $67,315 Bicycle: $62,768 Walk: $52,420 Other: $73,179 At Home: $97,789 Total: $81,567 So, bicycle commuter income is significantly higher than walk-only commuter income in California, in 2000. Sample size for the California PUMS: bicycle, n=5,874 sample commuters walk, n=21,419 sample commuters It's also a good idea to examine the characteristics of commuters by other traits, including sex, age, race/ethnicity, occupation and industry. You may be able to find that the "typical bicycle commuter" is young (20s), male, and either white or hispanic. The "typical walk commuter" on the other hand may be middle age (40s-50s), female and non-white. All of course depending on your regional context. I went back and examined the 1990 CTPP data for the Bay Area, and this trend where the "At Home" mean household income is higher than the "drive alone" income still holds true. The best way to examine the characteristics of "at home" workers is by industry and occupation. cheers, Chuck Purvis, MTC >>> Ed Christopher <edc(a)berwyned.com> 11/10/05 11:53 AM >>> I was reminded by some of our friends at the Census Bureau that I mis-spoke slightly. The 5% PUMS data is available FREE of charge from the Census download site. The Census 2000 PUMS download site, which includes full documentation, can be found at: http://www.census.gov/Press-Release/www/2003/PUMS5.html Data Access Tools that are available through the Census Bureau's website are described at: http://www.census.gov/main/www/access.html. > >>> edc 11/10/05 08:23 >>> > > Andrew, if the cross tab you are interested in is not in the CTPP > another place where you could get this would be from the PUMS data. Of > course the geographic area for the summary would be quite large. The > PUMS data are available at $$$ from the census bureau and also from your > state data center. You might be able to get a copy of the DVD from them > or maybe find someone who has one to run you a tab. Of course getting > your own DVD of the PUMS data is well worth having. All in all keep in > mind that the samples will be small and you could working in the > variability margins of the data. > > Andrew PICKARD wrote: > > > Is anyone aware of information on income for those who commute by > > bicycle versus those who commute by walking? Bicycle and walking are > > grouped together in 2000 CTPP for mean income, but I would like to > > know if there is a difference. Thanks. Andy Pickard, P.E. > > Senior Transportation Engineer > > Hampton Roads Planning District Commission > > 723 Woodlake Drive > > Chesapeake, VA. 23320 > > Phone: 757.420.8300 Fax: 757.523.4881 > > apickard(a)hrpdc.org > > www.hrpdc.org > >

20 years, 3 months

Re: [CTPP] mean income for bicycle vs walk

by Ed Christopher

I was reminded by some of our friends at the Census Bureau that I mis-spoke slightly. The 5% PUMS data is available FREE of charge from the Census download site. The Census 2000 PUMS download site, which includes full documentation, can be found at: http://www.census.gov/Press-Release/www/2003/PUMS5.html Data Access Tools that are available through the Census Bureau's website are described at: http://www.census.gov/main/www/access.html. > >>> edc 11/10/05 08:23 >>> > > Andrew, if the cross tab you are interested in is not in the CTPP > another place where you could get this would be from the PUMS data. Of > course the geographic area for the summary would be quite large. The > PUMS data are available at $$$ from the census bureau and also from your > state data center. You might be able to get a copy of the DVD from them > or maybe find someone who has one to run you a tab. Of course getting > your own DVD of the PUMS data is well worth having. All in all keep in > mind that the samples will be small and you could working in the > variability margins of the data. > > Andrew PICKARD wrote: > > > Is anyone aware of information on income for those who commute by > > bicycle versus those who commute by walking? Bicycle and walking are > > grouped together in 2000 CTPP for mean income, but I would like to > > know if there is a difference. Thanks. Andy Pickard, P.E. > > Senior Transportation Engineer > > Hampton Roads Planning District Commission > > 723 Woodlake Drive > > Chesapeake, VA. 23320 > > Phone: 757.420.8300 Fax: 757.523.4881 > > apickard(a)hrpdc.org > > www.hrpdc.org > > > > ---------------------------------------------------------------- > > _______________________________________________ > > ctpp-news mailing list > > ctpp-news(a)chrispy.net > > http://www.chrispy.net/mailman/listinfo/ctpp-news > > > -- > Ed Christopher > 708-283-3534 (V) > 708-574-8131 (cell) > FHWA RC-TST-PLN > > _______________________________________________ > ctpp-news mailing list > ctpp-news(a)chrispy.net > http://www.chrispy.net/mailman/listinfo/ctpp-news -- Ed Christopher 708-283-3534 (V) 708-574-8131 (cell) FHWA RC-TST-PLN 19900 Governors Dr Olympia Fields, IL 60461

20 years, 4 months

mean income for bicycle vs walk

by Andrew PICKARD

Is anyone aware of information on income for those who commute by bicycle versus those who commute by walking? Bicycle and walking are grouped together in 2000 CTPP for mean income, but I would like to know if there is a difference. Thanks. Andy Pickard, P.E. Senior Transportation Engineer Hampton Roads Planning District Commission 723 Woodlake Drive Chesapeake, VA. 23320 Phone: 757.420.8300 Fax: 757.523.4881 apickard(a)hrpdc.org www.hrpdc.org

20 years, 4 months

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