Aggregate travel time to work (in minutes) - B08013001 - Aggregate Travel Time to Work (In Minutes) of Workers By Sex - American Community Survey Tables: 2006 (1-Year Estimates) (ACS06) - Survey ACS 2006 (1-Year Estimates)

Data Dictionary:

ACS 2006 (1-Year Estimates)

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Survey: ACS 2006 (1-Year Estimates)

Data Source:

U.S. Census Bureau

Data set: American Community Survey Tables: 2006 (1-Year Estimates) (ACS06)

Table:

B08013. Aggregate Travel Time to Work (In Minutes) of Workers By Sex [3]

Universe: Universe: Workers 16 years and Over who did not work at home

Variable Details

B08013.	Aggregate Travel Time to Work (In Minutes) of Workers By Sex
	Universe: Universe: Workers 16 years and Over who did not work at home
	B08013001Aggregate travel time to work (in minutes) Percent base: None - percentages not computed (variable is table universe) Aggregation method: Addition

Relevant Documentation:

Excerpt from:	Social Explorer; U.S. Census Bureau; American Community Survey 2006 Summary File: Technical Documentation.
	ACS 2006-1yr Summary File: Technical Documentation -> Appendix B. Subject Definitions -> Derived Measures -> Mean -> Aggregate

Aggregate

An aggregate is the sum of the values for each of the elements in the universe. For example, aggregate household income is the sum of the incomes of all households in a given geographic area. Means are derived by dividing the aggregate by the appropriate universe. When an aggregate used as a numerator is rounded in the detailed (base) tables, the rounded value is used for the calculation of the mean.

Excerpt from:	Social Explorer; U.S. Census Bureau; American Community Survey 2006 Summary File: Technical Documentation.
	ACS 2006-1yr Summary File: Technical Documentation -> Appendix B. Subject Definitions -> Population Variables -> Travel Time to Work

Travel Time to Work

See "Journey to Work".

Excerpt from:	Social Explorer; U.S. Census Bureau; American Community Survey 2006 Summary File: Technical Documentation.
	ACS 2006-1yr Summary File: Technical Documentation -> Appendix B. 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. Its 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.

Excerpt from:	Social Explorer; U.S. Census Bureau; American Community Survey 2006 Summary File: Technical Documentation.
	ACS 2006-1yr Summary File: Technical Documentation -> Appendix B. Subject Definitions -> Population Variables -> Sex

Sex

The data on sex were derived from answers to Question 1. Individuals were asked to mark either "male" or "female" to indicate their sex. For most cases in which sex was not reported, the appropriate entry was determined from the person's given (i.e., first) name and household relationship. Otherwise, sex was imputed according to the relationship to the householder and the age of the person.

Sex Ratio

The sex ratio represents the balance between the male and female populations. Ratios above 100 indicate a larger male population, and ratios below 100 indicate a larger female population. This measure is derived by dividing the total number of males by the total number of females and then multiplying by 100. It is rounded to the nearest tenth.

Limitation of the data

Beginning in 2006, the population in group quarters (GQ) is included in the ACS. Some types of GQ populations have sex distributions that are very different from the household population. The inclusion of the GQ population could therefore have a noticeable impact on the sex distribution. This is particularly true for areas with a substantial GQ population.
The Census Bureau tested the changes introduced to the 2006 version of the sex question in the 2006 ACS Grid-Sequential Test (http://www.census.gov/acs/www/Downloads/ACS-MP-09_Grid-Sequential_Test_Final_Report.pdf). The results of this testing show that the changes may introduce an inconsistency in the data produced for this question as observed from the years 2006 to 2006.

Question/Concept History

The sex question has remained the same.