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Auto Ownership

Auto ownership and automobile use are common indicators that determine transportation choice and travel behavior. Households with no automobiles tend to have individuals that have high levels of walking for utilitarian transportation. Auto ownership is one component used to determine automobile costs, along with vehicle miles traveled (VMT), which comprises an important determinant of transportation costs. This measure provides the modeled number of automobiles per household.

DATA DEVELOPMENT

The data for the auto ownership measure is derived from the Consumer Expenditure Survey (CES) released by the U.S. Bureau of Labor Statistics. The automobile ownership measure is the average number of vehicles per household.1   

Formula:

  • Auto ownership = number of vehicles per household for regional median family income.

INDICATOR CALCULATION

This indicator was calculated by the U.S. Department of Housing & Urban Development (U.S. HUD), and U.S. Department of Transportation (U.S. DOT) using data from the sources listed below.

DATA SOURCES

  • ·         U.S. HUD, and U.S. DOT Location Affordability Index, 2013.
  • ·         U.S. Census Bureau, American Community Survey (ACS), 5-Year Estimates, 2012.

RELATED PUBLICATIONS

  • Frank, L.D., Andresen, M.A., & Schmid, T.L. (2004). Obesity Relationships With Community Design, Physical Activity, & Time Spent in Cars. American Journal of Preventive Medicine, 27(2), 87-96.
  •  Frank, L.D., Schmid, T.L., Sallis, J.F., Chapman, J.E., & Saelens, B.E. Linking Objectively Measured Physical Activity with Objectively Measured Urban Form. American Journal of Preventive Medicine, 28(2, Supplement 2), 117-125.

  • Frank, L.D., Bradley, M., Kavage, S., Chapman, J.E. & Lawton, T.K. (2008). Urban Form, Travel Time, and Cost Relationships with Tour Complexity and Mode Choice.  Transportation 35(1), 37-54.
  • Zhang, L., Hong, J., Nasri, A. & Shen, Q. (2012). How Built Environment Affects Travel Behavior: A Comparative Analysis of the Connections Between Land Use and Vehicle Miles Traveled in US Cities. Journal of Transport & Land Use, 5(3), 40-52.

ADDITIONAL RESOURCES

  •  U.S. EPA, Integrated Science Assessment for Particulate Matter Final Report
  •  Community Multi-scale Air Quality (CMAQ) Modeling System for Air Quality Management:
  • Health and Environmental Effects of Particulate Matter (PM)
  •  U.S. EPA, EJ Screen Technical Report

 




[1] U.S. HUD & U.S. DOT, Data & Methodology: Location Affordability Index Version 2.0: http://www.locationaffordability.info/lapmethodsv2.pdf