Data Dictionary: ACS 2005 -- 2007 (3-Year Estimates)
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Data Source: U.S. Census Bureau
Table: B08505G. Means Of Transportation To Work For Workplace Geography (Two Or More Races) [7]
Universe: Universe: Two or more races workers 16 years and over
Table Details
B08505G. Means Of Transportation To Work For Workplace Geography (Two Or More Races)
Universe: Universe: Two or more races workers 16 years and over
Relevant Documentation:
Excerpt from: Social Explorer; U.S. Census Bureau; 2005-2007 American Community Survey 3-Year Summary File: Technical Documentation.
 
Means of Transportation to Work
The data on means of transportation to work were derived from answers to Question 25, which was asked of people who indicated in Question 23 that they worked at some time during the reference week. (See "Reference Week.") Means of transportation to work refers to the principal mode of travel or type of conveyance that the worker usually used to get from home to work during the reference week.
People who used different means of transportation on different days of the week were asked to specify the one they used most often, that is, the greatest number of days. People who used more than one means of transportation to get to work each day were asked to report the one used for the longest distance during the work trip. The category, "Car, truck, or van," includes workers using a car (including company cars but excluding taxicabs), a truck of one-ton capacity or less, or a van. The category, "Public transportation," includes workers who used a bus or trolley bus, streetcar or trolley car, subway or elevated, railroad, or ferryboat, even if each mode is not shown separately in the tabulation. "Carro público" is included in the public transportation category in Puerto Rico. The category, "Other means," includes workers who used a mode of travel that is not identified separately within the data distribution. The category, "Other means," may vary from table to table, depending on the amount of detail shown in a particular distribution. The means of transportation data for some areas may show workers using modes of public transportation that are not available in those areas (for example, subway or elevated riders in a metropolitan area where there is no subway or elevated service). This result is largely due to people who worked during the reference week at a location that was different from their usual place of work (such as people away from home on business in an area where subway service was available), and people who used more than one means of transportation each day but whose principal means was unavailable where they lived (for example, residents of nonmetropolitan areas who drove to the fringe of a metropolitan area, and took the commuter railroad most of the distance to work).
Limitation of the Data
Beginning in 2006, the group quarters (GQ) population is included in the ACS. Some types of GQ populations have means of transportation distributions that are very different from the household population. The inclusion of the GQ population could therefore have a noticeable impact on the means of transportation to work distribution. This is particularly true for areas with a substantial GQ population.
Question/Concept History
Beginning in 1999, the American Community Survey questions differ from the 1996-1998 questions only in the format of the skip instructions. Beginning in 2004, the category, "Public transportation" was tabulated to exclude workers who used taxicab as their means of transportation.
Excerpt from: Social Explorer; U.S. Census Bureau; 2005-2007 American Community Survey 3-Year Summary File: Technical Documentation.
 
Workplace-based Geography
The characteristics of workers may be shown using either residence-based or workplace-based geography. If you are interested in the number and characteristics of workers living in a specific area, you should use the standard (residence-based) journey-to-work tables. If you are interested in the number and characteristics of workers who work in a specific area, you should use the workplace-based journey-to-work tables. Because place-of-work information for workers cannot always be specified below the place level, the workplace-based tables are presented only for selected geographic areas.
Limitation of the Data
The data on place of work is related to a reference week, that is, the calendar week preceding the date on which the respondents completed their questionnaires or were interviewed. This week is not the same for all respondents because data were collected over a 12-month period. The lack of a uniform reference week means that the place-of-work data reported in the survey will not exactly match the distribution of workplace locations observed or measured during an actual workweek. The place-of-work data are estimates of people 16 years and over who were both employed and at work during the reference week (including people in the Armed Forces). People who did not work during the reference week but had jobs or businesses from which they were temporarily absent due to illness, bad weather, industrial dispute, vacation, or other personal reasons are not included in the place-of-work data. Therefore, the data on place of work understate the total number of jobs or total employment in a geographic area during the reference week. It also should be noted that people who had irregular, casual, or unstructured jobs during the reference week might have erroneously reported themselves as not working. The address where the individual worked most often during the reference week was recorded on the questionnaire. If a worker held two jobs, only data about the primary job (the job where one worked the greatest number of hours during the preceding week) was requested. People who regularly worked in several locations during the reference week were requested to give the address at which they began work each day. For cases in which daily work was not begun at a central place each day, the respondent was asked to provide as much information as possible to describe the area in which he or she worked most during the reference week.
Since both the American Community Survey and the decennial censuses are related to a "reference week" that has some variability, the data do not reflect any single week. Since the American Community Survey data are collected over 12 months, the reference week in American Community Survey has a greater range of variation. (See "Reference Week.")
Question/Concept History
Starting in 1999, the American Community Survey questions differ from the 1996-1998 questions in that the labels on the write-in spaces were modified to provide clarifications. The 2004 American Community Survey marked the first time that workplace-based tables were released as a part of a standard census data product.
Excerpt from: Social Explorer; U.S. Census Bureau; 2005-2007 American Community Survey 3-Year Summary File: Technical Documentation.
 
Two or More Races
People may have chosen to provide two or more races either by checking two or more race response check boxes, by providing multiple responses, or by some combination of check boxes and write-in responses. The race response categories shown on the questionnaire are collapsed into the five minimum races identified by the OMB, and the Census Bureau's "Some other race" category. For data product purposes, "Two or More Races" refers to combinations of two or more of the following race categories:
1. White
2. Black or African American
3. American Indian and Alaska Native
4. Asian
5. Native Hawaiian and Other Pacific Islander
6. Some other race

There are 57 possible combinations (see below) involving the race categories shown above. Thus, according to this approach, a response of "White" and "Asia"n was tallied as two or more races, while a response of Japanese and Chinese was not because "Japanese" and "Chinese" are both Asian responses. Tabulations of responses involving reporting of two or more races within the American Indian and Alaska Native, Asian, or Native Hawaiian and Other Pacific Islander categories are available in other data products.
Excerpt from: Social Explorer; U.S. Census Bureau; 2005-2007 American Community Survey 3-Year Summary File: Technical Documentation.
 
Two or More Races (57 Possible Specified Combinations)

  1. White; Black or African American

  2. White; American Indian and Alaska Native

  3. White; Asian

  4. White; Native Hawaiian and Other Pacific Islander

  5. White; Some other race

  6. Black or African American; American Indian and Alaska Native

  7. Black or African American; Asian

  8. Black or African American; Native Hawaiian and Other Pacific Islander

  9. Black or African American; Some other race

  10. American Indian and Alaska Native; Asian

  11. American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander

  12. American Indian and Alaska Native; Some other race

  13. Asian; Native Hawaiian and Other Pacific Islander

  14. Asian; Some other race

  15. Native Hawaiian and Other Pacific Islander; Some other race

  16. White; Black or African American; American Indian and Alaska Native

  17. White; Black or African American; Asian

  18. White; Black or African American; Native Hawaiian and Other Pacific Islander

  19. White; Black or African American; Some other race

  20. White; American Indian and Alaska Native; Asian

  21. White; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander

  22. White; American Indian and Alaska Native; Some other race

  23. White; Asian; Native Hawaiian and Other Pacific Islander

  24. White; Asian; Some other race

  25. White; Native Hawaiian and Other Pacific Islander; Some other race

  26. Black or African American; American Indian and Alaska Native; Asian

  27. Black or African American; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander

  28. Black or African American; American Indian and Alaska Native; Some other race

  29. Black or African American; Asian; Native Hawaiian and Other Pacific Islander

  30. Black or African American; Asian; Some other race

  31. Black or African American; Native Hawaiian and Other Pacific Islander; Some other race

  32. American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander

  33. American Indian and Alaska Native; Asian; Some other race

  34. American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander; Some other race

  35. Asian; Native Hawaiian and Other Pacific Islander; Some other race

  36. White; Black or African American; American Indian and Alaska Native; Asian

  37. White; Black or African American; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander

  38. White; Black or African American; American Indian and Alaska Native; Some other race

  39. White; Black or African American; Asian; Native Hawaiian and Other Pacific Islander

  40. White; Black or African American; Asian; Some other race

  41. White; Black or African American; Native Hawaiian and Other Pacific Islander; Some other race

  42. White; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander

  43. White; American Indian and Alaska Native; Asian; Some other race

  44. White; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander; Some other race

  45. White; Asian; Native Hawaiian and Other Pacific Islander; Some other race

  46. Black or African American; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander

  47. Black or African American; American Indian and Alaska Native; Asian; Some other race

  48. Black or African American; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander; Some other race

  49. Black or African American; Asian; Native Hawaiian and Other Pacific Islander; Some other race

  50. American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander; Some other race

  51. White; Black or African American; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander

  52. White; Black or African American; American Indian and Alaska Native; Asian; Some other race

  53. White; Black or African American; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander; Some other race

  54. White; Black or African American; Asian; Native Hawaiian and Other Pacific Islander; Some other race

  55. White; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander; Some other race

  56. Black or African American; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander; Some other race

  57. White; Black or African American; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander; Some other race



Given the many possible ways of displaying data on two or more races, data products will provide varying levels of detail. The most common presentation shows a single line indicating "Two or more races." Some data products provide totals of all 57 possible race combinations, as well as subtotals of people reporting a specific number of races, such as people reporting two races, people reporting three races, and so on. In other presentations on race, data are shown for the total number of people who reported one of the six categories alone or in combination with one or more other race categories. For example, the category, "Asian alone or in combination with one or more other races" includes people who reported Asian alone and people who reported Asian in combination with White, Black or African American, Native Hawaiian and Other Pacific Islander, and/or Some other race. This number, therefore, represents the maximum number of people who reported as Asian in the question on race. When this data presentation is used, the individual race categories will add to more than the total population because people may be included in more than one category.