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Data Dictionary: ACS 2009 (5-Year Estimates)
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Data Source: Social Explorer; U.S. Census Bureau
Universe: Workers 16 Years and Over
Variable Details
A09001. Travel Time to Work for Workers 16 Years and Over
Universe: Workers 16 Years and Over
A09001_004 10 to 19 Minutes
Percent base:
Workers 16 Years and Over: (SE:A09001_001)
Aggregation method:
Addition
Formula used to compute this variable:
Return_Value = ACS09_5yr:B08303004 + ACS09_5yr:B08303005; if (ACS09_5yr:B08303004.IsNull || ACS09_5yr:B08303005.IsNull) Return_Value.IsNull = true
Variables used in the formula:
ACS09_5yr:B08303004
Workers 16 Years and Over Who Did Not Work At Home: 10 to 14 Minutes
ACS09_5yr:B08303005
Workers 16 Years and Over Who Did Not Work At Home: 15 to 19 Minutes
Relevant Documentation:
Excerpt from: Social Explorer; U.S. Census Bureau; American Community Survey 2005-2009 Summary File: Technical Documentation.
  ACS 2009-5yr Summary File: Technical Documentation -> Appendix A. Supplemental Documentation -> 2009 Subject Definitions -> Population Variables -> Journey to Work -> Means of Transportation to Work -> Travel Time to Work
Travel Time to Work
The data on travel time to work were derived from answers to Question 34. This question was asked of people who indicated in Question 29 that they worked at some time during the reference week, and who reported in Question 31 that they worked outside their home. Travel time to work refers to the total number of minutes that it usually took the worker to get from home to work during the reference week. The elapsed time includes time spent waiting for public transportation, picking up passengers in carpools, and time spent in other activities related to getting to work. (See "Reference Week".)

Excerpt from: Social Explorer; U.S. Census Bureau; American Community Survey 2005-2009 Summary File: Technical Documentation.
  ACS 2009-5yr Summary File: Technical Documentation -> Appendix A. Supplemental Documentation -> 2009 Subject Definitions -> Population Variables -> Employment Status -> Worker
Worker
This term appears in connection with several subjects: employment status, journey-to-work questions, class of worker, weeks worked in the past 12 months, and number of workers in family in the past 12 months. The meaning varies and, therefore, should be determined in each case by referring to the definition of the subject in which it appears. When used in the concepts "workers in family" and "full-time, year-round workers," the term "worker" relates to the meaning of work defined for the "work experience" subject.