Data Dictionary: ACS 2005 -- 2007 (3-Year Estimates)
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Data Source: U.S. Census Bureau
Table: B08126. Means Of Transportation To Work By Industry [105]
Universe: Universe: Workers 16 years and over
Table Details
B08126. Means Of Transportation To Work By Industry
Universe: Universe: Workers 16 years and over
Variable Label
B08126001
B08126002
B08126003
B08126004
B08126005
B08126006
B08126007
B08126008
B08126009
B08126010
B08126011
B08126012
B08126013
B08126014
B08126015
B08126016
B08126017
B08126018
B08126019
B08126020
B08126021
B08126022
B08126023
B08126024
B08126025
B08126026
B08126027
B08126028
B08126029
B08126030
B08126031
B08126032
B08126033
B08126034
B08126035
B08126036
B08126037
B08126038
B08126039
B08126040
B08126041
B08126042
B08126043
B08126044
B08126045
B08126046
B08126047
B08126048
B08126049
B08126050
B08126051
B08126052
B08126053
B08126054
B08126055
B08126056
B08126057
B08126058
B08126059
B08126060
B08126061
B08126062
B08126063
B08126064
B08126065
B08126066
B08126067
B08126068
B08126069
B08126070
B08126071
B08126072
B08126073
B08126074
B08126075
B08126076
B08126077
B08126078
B08126079
B08126080
B08126081
B08126082
B08126083
B08126084
B08126085
B08126086
B08126087
B08126088
B08126089
B08126090
B08126091
B08126092
B08126093
B08126094
B08126095
B08126096
B08126097
B08126098
B08126099
B08126100
B08126101
B08126102
B08126103
B08126104
B08126105
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.
 
Industry
The data on industry were derived from answers to Questions 36 through 38. Written responses to the industry questions are coded using the industry classification system developed for Census 2000 and modified in 2002 and again in 2007. This system consists of 269 categories for employed people, including military, classified into 20 sectors. The modified 2007 census industry classification was developed from the 2007 North American Industry Classification System (NAICS) published by the Executive Office of the President, Office of Management and Budget. The NAICS was developed to increase comparability in industry definitions between the United States, Mexico, and Canada. It provides industry classifications that group establishments into industries based on the activities in which they are primarily engaged. The NAICS was created for establishment designations and provides detail about the smallest operating establishment, while the American Community Survey data are collected from households and differ in detail and nature from those obtained from establishment surveys. Because of potential disclosure issues, the census industry classification system, while defined in NAICS terms, cannot reflect the full detail for all categories. The industry category, "Public administration," is limited to regular government functions such as legislative, judicial, administrative, and regulatory activities. Other government organizations such as public schools, public hospitals, and bus lines are classified by industry according to the activity in which they are engaged.