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