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ANNOUNCEMENT: ABAG/MTC Census Research Conference - June 23rd

by Chuck Purvis

ANNOUNCING a FULL-DAY CENSUS CONFERENCE - Thursday, June 23rd, MetroCenter Auditorium, Oakland, California Measuring Metropolis: The San Francisco Bay Area A Census-Related Research Conference A free conference for the planning community, co-sponsored by: Association of Bay Area Governments Metropolitan Transportation Commission Thursday, June 23, 2005, 9:00 a.m. - 3:00 p.m. Auditorium, Joseph P. Bort MetroCenter, 101 Eighth Street, Oakland The conference is designed primarily for local, regional, and state planners. Its goal is to inform planners about available, but sometimes less known census data resources. ABAG and MTC will also be reporting some of their interesting research using census data. Agenda Welcome & Introductions Census 2000 Digital Atlas for the Bay Area PUMS DVD Demo: How to do it Yourself Advanced Query System: A New Way to Get Census Data National Historical GIS: Comparable Data from 1940-2000 Journey-to-Work: Analysis for the Bay Area Migration Patterns in the Bay Area American Community Survey Modeling and Predicting the Bay Area's Housing Market Registration is limited to the first 100 registrants because seating is limited. Handouts will only be made available to those in attendance. You must register online at: http://www.abag.ca.gov/abag/events/metropolis/index.html If you register AND if you are unable to attend, please contact the Association of Bay Area Governments at 510-464-7957 or the Metropolitan Transportation Commission at 510-464-7839 to cancel your registration. NOTE: No Registration Fee -- Lunch on your own from Noon to 1 p.m. The only announcement of this conference is by email. There will be no printed brochure. PLEASE FORWARD this e-mail to interested parties. For more information on this conference, please contact Patricia Perry (patriciap(a)abag.ca.gov) or Brian Kirking (briank(a)abag.ca.gov) at ABAG; and/or Chuck Purvis (cpurvis(a)mtc.ca.gov) or Shimon Israel (sisrael(a)mtc.ca.gov) at 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/ **************************************************************

19 years, 7 months

From the APDU listserv: BOGUS CENSUS SURVEY

by Murakami, Elaine

-----Original Message----- From: APDUmem-bounces(a)apdu.org [mailto:APDUmem-bounces@apdu.org]On Behalf Of Patty Becker Sent: Wednesday, May 18, 2005 7:55 AM To: "SEMCC Members"; APDUMEM(a)apdu.org; iasst-l(a)columbia.edu Subject: [APDU] Fwd: BOGUS CENSUS SURVEY Hi everyone, This seems like something that everyone needs to know about. Of course, none of us open spam messages, but.... Patty Becker --------------------------- >From TerriAnn Lowenthal: Officials at Census Bureau headquarters have asked me to alert stakeholders to a phony survey making the rounds, that misappropriates the U.S. Census Bureau's name, logo, and home page. The fake survey was discovered by Bureau staff in the Charlotte Regional Office. It contains questions about the Iraq war and offers $5.00 for completing the survey; when recipients click on the link, they are asked for bank account numbers. We wanted you to know about this problem in case you receive any inquiries from your constituencies. Obviously, the Census Bureau will refer this case to appropriate law enforcement authorities. A "cut and paste" copy of the "survey" is below my signature, for your reference. Thanks, Terri Ann Terri Ann Lowenthal Legislative & Policy Consultant 1250 4th St., SW Apt. W615 Washington, DC 20024 (tel.) 202-484-3067 TerriAnn2K(a)aol.com *************************** Operation Iraqi Freedom 2005 Survey - $5 Instant Cash Reward The U.S. Census Bureau in association with participating banks will instantly credit $5 to your account - Just for taking part in our quick & easy 5 question survey! Why do we care? Iraq has endured decades of collapsing hopes and accumulating tragedy. It is numbing to consider the waste of so much human and resource potential. Saddam's ambitions conflicted with the region and the international community. True to his name, he too often chose confrontation over cooperation. Ultimately these decisions led to total collapse. In March 2003 the United States along with an international collation struck the final blow on Saddam's tyranny with Operation Iraqi Freedom. Two years later questions about weather or not America should have been involved in Iraq in the first place have echoed through the political and media scene all over the world. Giving answers to these questions the U.S. Census Bureau with help from participating Equal Housing Lender partner banks has decided to contribute in setting up the means to reward participates for taking part in such a survey. Now we can really find out America really thinks. How do I know if my bank is a Equal Housing Lender partner? Usually at the bottom of your bank's web page you will see you will see a small icon like this (Embedded image moved to file: pic31056.gif)with Equal Housing Lender Partner details. If you do not see this on your bank's web page please contact your bank for further assistance. Where do we get the money to credit you? Federal Fair Housing Act UNDER THE FEDERAL FAIR HOUSING ACT, IT IS ILLEGAL, ON THE BASIS OF RACE, COLOR, NATIONAL ORIGIN, RELIGION, SEX, HANDICAP, OR FAMILIAL STATUS (HAVING CHILDREN UNDER THE AGE OF 18), TO: Deny a loan for the purpose of purchasing, constructing, improving, repairing, or maintaining a dwelling, or deny any loan secured by a dwelling; or Discriminate in fixing the amount, interest rate, duration, application procedures or other terms or conditions of such a loan, or in appraising property. Each year a small percentage of businesses fail to comply with this act, as a result they get severally penalized. Compensation is then allocated to Government Departments to be used on national projects. The United States Census Bureau receives a portion of these funds. Please spare a moment of your time in telling America what YOU really think! To continue click on the link below; http://www.census.gov/surveys/may05/survey.htm <http://www.census.gov/surveys/may05/survey.htm%A0%A0%A0%A0%A0%A0%A0%A0%A0%A…> (Embedded image moved to file: pic27606.gif)American Community Survey ------------------------------------------------------------------------------------------------- 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 _______________________________________________ APDUmem mailing list APDUmem(a)apdu.org http://apdu.org/mailman/listinfo/apdumem_apdu.org

19 years, 7 months

American Community Survey - Frequently Asked Questions

by Chuck Purvis

I'm forwarding this e-mail, with a WORD attachment, from the Census Bureau. This message was sent to the State Data Center listserv. Chuck Purvis, MTC ********************************************************************************************************************************************************* FYI... The American Community Survey is a new nationwide survey designed to provide communities a fresh look at how they are changing. It will replace the long form in future censues and is a critical element in the Census Bureau's reegineered 2010 census plan. Attached are frequently asked questions about the American Community Survey. (See attached file: ACS Media FAQs 5-12.doc) Thanks, Renée Jefferson-Copeland Program Administrator State and Governmental Programs Customer Liaison Office Census Bureau ************************************************************** 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/ **************************************************************

19 years, 7 months

Re: ctpp-news Digest, Vol 17, Issue 3

by Chip Sellers

God Afternoon, I will not be able to attend the meeting in Irvine. Will the materials from the presentation be made available to the rest of us? Thanks, Chip Sellers Associate Planner Stanislaus Council of Governments 900 H Street, Suite D Modesto, CA 95354 (209) 558-4866 (209) 558-7833 FAX csellers(a)stancog.org >>> ctpp-news-request(a)chrispy.net 05/09/05 12:28 PM >>> Send ctpp-news mailing list submissions to ctpp-news(a)chrispy.net To subscribe or unsubscribe via the World Wide Web, visit http://www.chrispy.net/mailman/listinfo/ctpp-news or, via email, send a message with subject or body 'help' to ctpp-news-request(a)chrispy.net You can reach the person managing the list at ctpp-news-owner(a)chrispy.net When replying, please edit your Subject line so it is more specific than "Re: Contents of ctpp-news digest..." Today's Topics: 1. Draft Proposal for Transportation-Related Data Products from ACS for 2004 and Beyond (phillip.a.salopek(a)census.gov) ---------------------------------------------------------------------- Message: 1 Date: Mon, 9 May 2005 15:20:27 -0400 From: phillip.a.salopek(a)census.gov Subject: [CTPP] Draft Proposal for Transportation-Related Data Products from ACS for 2004 and Beyond To: ctpp-news(a)chrispy.net Message-ID: <OF7CC6352E.48D7DC51-ON85256FFC.0066CE0C-85256FFC.006A3E59(a)census.gov> Content-Type: text/plain; charset="us-ascii" I will be delivering a presentation this week in Irvine CA at the Transportation Research Board Conference, "Census Data for Transportation Planning: Preparing for the Future." I've put together a handout to go along with the presentation which outlines the transportation-related content in some new and/or revamped ACS data products. These proposals have not received final approval yet, so are still subject to change. But I've been asked to post them to the listserve to reach a wider audience. The bottom line is that the standard products from ACS will have a lot more tables on the characteristics of workers than have been previously produced in either the ACS or in the decennial census. And for the first time ever, there will be data tabulated by workplace geography in a standard Census Bureau data product. The handout does not cover all products from ACS, just two new types of products ("selected population profiles" and "subject tables") and a major revision to the detailed tables (to be called "base tables" in the future). You should print out the various worksheets to look at them, since there is useful information in the headers and footers that does not show up when you are just looking at the sheet on the screen. --Phil (See attached file: Irvine-Handout_Proposed_ACS_Standard_Tables.xls)

19 years, 8 months

Draft Proposal for Transportation-Related Data Products from ACS for 2004 and Beyond

by phillip.a.salopek＠census.gov

I will be delivering a presentation this week in Irvine CA at the Transportation Research Board Conference, "Census Data for Transportation Planning: Preparing for the Future." I've put together a handout to go along with the presentation which outlines the transportation-related content in some new and/or revamped ACS data products. These proposals have not received final approval yet, so are still subject to change. But I've been asked to post them to the listserve to reach a wider audience. The bottom line is that the standard products from ACS will have a lot more tables on the characteristics of workers than have been previously produced in either the ACS or in the decennial census. And for the first time ever, there will be data tabulated by workplace geography in a standard Census Bureau data product. The handout does not cover all products from ACS, just two new types of products ("selected population profiles" and "subject tables") and a major revision to the detailed tables (to be called "base tables" in the future). You should print out the various worksheets to look at them, since there is useful information in the headers and footers that does not show up when you are just looking at the sheet on the screen. --Phil (See attached file: Irvine-Handout_Proposed_ACS_Standard_Tables.xls)

19 years, 8 months

CTPP Part 3 Issues - Anniversary Report (long post, with small attachment)

by Chuck Purvis

TO: CTPP-News: FR: Chuck Purvis, MTC RE: CTPP Part 3 Issues On the one-year anniversary of receiving the Census 2000 CTPP Part 3 data, I thought I would re-release an old e-mail looking at the Part 3 data suppression and data loss issues (with some current observations). There are 14 total tables in the CTPP Part 3 area-to-area "flow"data. Five of these tables (3-3 through 3-7) have a minimum 3-worker sample threshold applied. If there are less than 3 sample workers, total, on an area-to-area basis, then values for that flow interchange are suppressed. This can have a significant impact at finer geographic summary levels, e.g., tract-to-tract, zone-to-zone, and block group-to-block group. (This is not 'new' news, but is old, bad news.) This particular data analysis is for the Part 3 data for intra-San Francisco Bay Area. Other regions of various sizes will probably show similar patterns. Attached is my "bottom line" spreadsheet that shows the data loss due to suppression and rounding error across all geographic summary levels. Table 3-1 problems are limited solely to rounding errors. There are insignificant rounding errors going from the county-to-county to the place-to-place geographic summary levels, but modest rounding errors at the tract-to-tract level (a loss of 1.5%) and an incredible rounding loss of 3.5 percent at the zone-to-zone level. Note that rounding is done on an interchange cell by interchange cell basis. There is no "bucket rounding" applied in the CTPP to correct for this rounding error. Table 3-2 (household workers by means of transportation) also shows a similar rounding error problem, topping out at a 4.2 percent loss due to rounding at the zone-to-zone level. Table 3-6, all workers by detailed means of transportation, shows minor data loss due to rounding and suppression at the place-to-place level (-1.2 percent), but major data losses at the tract-to-tract level (-34.4 percent), and zone-to-zone level (-71.5 percent). Yes, 71.5 percent of the detailed means of transportation is lost at the zone-to-zone level. The only usable information from Table 3-6, at the zone-level, is the number of at home workers (Table 3-6, cell 18.) (NOTE: If you need block group or tract level workers working AT HOME, USE SUMMARY FILE #3 DATA!!!) The CTPP Part 3 does NOT have an "all workers universe" table on workers by DETAILED means of transportation, WITHOUT the sample size threshold. On the other hand, we can derive "all workers by means of transportation" by dividing the "aggregate travel time by means" (Table 3-14) by the "average travel time by means" (Table 3-8). This "back door" approach to estimating workers by means of transportation (universe: all workers) works exceptionally well. There is basically a negligible data loss across all geographic summary levels. For the past year we have been working with this "derived" commuters, zone-to-zone, based on dividing Table 3-14 by Table 3-8. This is essential if you're examining commuter flows, average commute distances (in miles or kilometers) and commute length frequency distributions. One problem with the Table 3-14 / 3-8 commuters is the "Other" category which combines five sub-groups: bicycle, walk, motorcycle, taxicab, and "other means". What this really means is that we (and probably all others in the U.S.) will be unable to create zone-to-zone bicycle or walk commuter matrices. (This is unlike the 1990 Census, where we created zone-to-zone bicycle and walk commuter matrices for purposes of analyzing commute distances and commute distance frequency distributions for these non-motorized commute modes....) (Actually, the Part 3 data came too late (May 2004) to be used in our travel demand model validation efforts, which we completed April 2004. We used the county-to-county flow data, derived from the 5% PUMS, by means of transportation by household income quartile, for validating our work trip distribution and work trip mode choice models.) That's all I have to offer for the moment. Think it over, and hope to see folks at the Census / Transportation Conference in Irvine, CA this week! 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/ **************************************************************

19 years, 8 months

CTPP Status Report, April 2005

by Srinivasan, Nanda

All- Attached is the latest (April 2005) CTPP Status Report. The report provides some learning tips on the American Community Survey, the use of the CTPP Access Tool for Part 3, and the use of the BTS TranStats website for downloading CTPP 2000 data. Since the publication of the report, the TranStats team have completed posting Part 2 data (Place of Work) into their system, along with Part 1 (Place of Residence), and Part 3 (Journey-to-Work Flow). Hope to see some of you at the "TRB Census Data for Transportation Planning: Preparing for the Future" conference in Irvine next week! Thank you, Nanda Srinivasan

19 years, 8 months

RE: County-level ACS

by Murakami, Elaine

Dear Garth-- I am going to answer and include the CTPP listserv. Thanks for the timely query. The release of data from the ACS is based on the population of the area, so you will not get "all counties" in Michigan at the same time. So, Counties with population greater than 250,000 have annual data (2003) already available at: http://factfinder.census.gov/servlet/DatasetMainPageServlet?_program=ACS <http://factfinder.census.gov/servlet/DatasetMainPageServlet?_program=ACS&_l…> &_lang=en&_ts=133099923308 These are from the Supplemental Survey component of the ACS during it's test phase. The data from 2005 ("full implementation") should be available in mid-2006. Counties with population over 65,000 will have data from 2005 released in 2006. Counties with population over 20,000 will require a 3-year accumulation of data, so data from 2005/06/07 will be required, and will not be released until 2008. Anything with less than 20,000 population will require 5-years of data accumulation before release. Also, we have EXCELLENT news from the CB. The CB has DRAFT tables for ACS including many relevant tables for transportation planners. There are many "CTPP-like" tables by "Means of Transportation to Work" at both residence geography AND workplace geography (but not FLOW) as part of the standard tabulation package, particularly as compared to SF3 from Census 2000. Phil Salopek of the CB will be sending these DRAFTs out to the CTPP listserv later this week. They were distributed in paper copy at the TRB Planning Applications conference in Portland last week. Phil expects this table structure to be used starting with the 2004 data (limited to large geographic areas). Elaine Murakami FHWA Office of Planning 206-220-4460 (Seattle) -----Original Message----- From: Garth Banninga [mailto:banningag@michigan.gov] Sent: Monday, May 02, 2005 6:54 AM To: Murakami, Elaine Subject: County-level ACS Hi Elaine: Now that all counties are part of the ACS annual sample, when can I expect to see ACS data for all Michigan counties on the ACS's data tables links? Thanks, Garth Banninga, Planner MDOT-Planning 517.335.2959

19 years, 8 months

RE: [CTPP] Tutorial for CTPP 2000 browser thematic map, shapefile export?

by Srinivasan, Nanda

Bryce: After you create your session, click on FILE and EXPORT to a shape file. Please note that the shape fle comes with a DBT file that explains the file headers. Then, you can use your own GIS to make maps in any way you want. The thematic mapping element in the CTPP software is rudimentary, you cannot create thematic maps that normalize by area. Thank you Nanda Srinivasan -----Original Message----- From: ctpp-news-bounces(a)chrispy.net on behalf of Bryce W Nesbitt Sent: Sun 4/17/2005 9:56 PM To: ctpp-news(a)chrispy.net Cc: Subject: [CTPP] Tutorial for CTPP 2000 browser thematic map,shapefile export? Is there a tutorial available for using the CTPP 2000 browser to conduct some real task? For example, "create a thematic map showing drive alone modeshare by census tract at place of work". When I try I get stuck in the selecting tables stage first (the list of available tables never makes sense), then again at the thematic map step (I can't figure out how to normalize by area, population density or number of workers in the tract). The tutorials on the CD describe only the user interface, not the steps needed to get a real task done. I'm hoping there is a way to export data into shapefile format, so maps can be made in GIS software. Is this possible? Bryce Nesbitt Note: I've found the browser to be slow, prone to crashing, and obtuse. Most annoying is that lots of windows can't be resized, yet one must scroll to read the longer titles. _______________________________________________ ctpp-news mailing list ctpp-news(a)chrispy.net http://www.chrispy.net/mailman/listinfo/ctpp-news

19 years, 8 months

Tutorial for CTPP 2000 browser thematic map, shapefile export?

by Bryce W Nesbitt

Is there a tutorial available for using the CTPP 2000 browser to conduct some real task? For example, "create a thematic map showing drive alone modeshare by census tract at place of work". When I try I get stuck in the selecting tables stage first (the list of available tables never makes sense), then again at the thematic map step (I can't figure out how to normalize by area, population density or number of workers in the tract). The tutorials on the CD describe only the user interface, not the steps needed to get a real task done. I'm hoping there is a way to export data into shapefile format, so maps can be made in GIS software. Is this possible? Bryce Nesbitt Note: I've found the browser to be slow, prone to crashing, and obtuse. Most annoying is that lots of windows can't be resized, yet one must scroll to read the longer titles.

19 years, 8 months

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