A Guidebook for Using American Community Survey Data for Transportation Planning (2007) / Chapter Skim
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From page 22... ...
(The requested data product is provided on screen, and users can download the results in a variety of file formats, including comma delimited, tab delimited, rich text format, or Microsoft Excel.) 3.1 ACS Data Products The basic ACS data products include • Base Tables (or Detailed Tables)
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The data products can be found fairly easily on the American FactFinder site but, if necessary, users can refer to the Census Bureau quick guide to determine how to locate these products on the website. 3.1.1 Base Tables Base Tables, or Detailed Tables, are straightforward descriptive tabulations of basic ACS variables and concepts.
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. Some of these Base Tables, such as the workplace-based tables, had 24 A Guidebook for Using American Community Survey Data for Transportation Planning Step 1: Select ACS Data Set Step 2: Select Data Product Figure 3.2.
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Tables for smaller geographic areas will be Obtaining ACS Data 25 American Indian Area/Alaska Native Area/Hawaiian Home Land ANRC: AIANHH: Alaska Native Regional Corporation SLD: State Legislative District (upper & lower chambers) TAZ: Traffic Analysis Zone UGA: Oregon Urban Growth Area ZCTA: ZIP Code Tabulation Area NATION REGIONS Counties Voting Districts AIANHHs UGAs SLDs ANRCs Places TAZs Census Tracts Subbarrios Block Groups County Subdivisions School Districts Congressional Districts ZCTAs DIVISIONS STATES Blocks Urban Areas Figure 3.3.
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However, in Base Table B08136, Aggregate Travel Time to Work (in Minutes) of Workers by Means of Transportation, there are 12 categories for means of transportation, and in Base Table B08132, Means of Transportation to Work by Time Leaving Home to Go to Work, there are 6 categories for means of transportation.
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3.1.6 Subject Tables The ACS Subject Tables are a group of tables that will allow users to analyze popular topic areas and themes for individual geographic areas. With the Subject Tables, the Census Bureau has sought to combine the information in related Base Tables into single tables.
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From page 28... ...
The Census Bureau selects a sample of housing units that filled out the questionnaires, and publishes the full range of responses from those households while protecting the confidentiality of the data. As a result, the residential geographic detail that is available from the PUMS is limited to the state level (PUMA level in the future)
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Comparison of data records in 2000 decennial census PUMS and 2004 ACS PUMS.
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The information on this web page will be continuously updated, so it is likely to be frequently visited by both new and experienced users. 30 A Guidebook for Using American Community Survey Data for Transportation Planning 12 See http://www.fhwa.dot.gov/planning/census/sfacs.pdf (accessed June 2007)
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