• mobilitylab.org site logo
  • Mobility Lab main menu search icon:  click to do a search
    • Understanding Transportation Demand Management
    • Transportation Demand Management In Action
      • Arlington Transportation Partners
        • The Practice of Transportation Demand Management
      • Information and Outreach
        • Commuter Services
        • Messaging
        • Champions Program
      • Learn more about TDM
        • Further Reading
    • Our Research
      • Travel Behaviors
        • Transit
        • Bike
        • Walk
        • Ridesharing
        • Micromobility
      • Arlington Analysis
        • Regional Surveys
        • Evaluations
        • Building Studies
      • Market Profiles
        • All Profiles
    • Transit Oriented Communities
    • Urban Planning
    • Resources
      • The Transportation Cost-Savings Calculators
        • ROI Calculator
        • TRIMMS 4.0
      • Research Data
        • Transit APIs
        • Archived Articles
      • Video Library
      • Infographics
      • Glossary Of Key Terms
    • About Us
      • Meet Our Team
      • Careers

Urban Planning

  • Home
  • Urban planning

Transportation Costs Not Considered Enough in Housing Decisions

November 25, 2013

Hummer in DrivewayThe 2010 Census shows that the D.C. metropolitan region has the highest median income in the country, at more than $84,000. In fact, a popular Wall Street Journal article recently touted the “New Gilded Age” of the nation’s capital.

So it is perhaps not surprising that no one seems too eager to talk about affordable housing.

Mobility Lab hasn’t been so complacent, discussing the issue recently at one of its Lunch at the Lab series of meetups.

Affordable Housing event featuredFirst of all, the topic of affordable housing isn’t code for subsidized or low-income housing. The issue of housing affordability is one that impacts a region’s economic viability and competitiveness. It is also an issue that affects vast swaths of the middle-class, not just the poor.

Traditional measurements define housing as affordable if it accounts for no more than 30 percent of a household’s gross annual income. While that yardstick rule continues to be used, there’s a movement towards a different approach to measuring affordability.

The newer measurement, which was the subject matter of Mobility Lab’s September 19 Lunch at the Lab, looks at housing and transportation costs together. The reason for this is that a household’s two biggest expenses are housing and transportation, yet transportation expenses tend to be discounted in many decisions regarding where to live. Some people call transportation a “hidden cost” of housing.

This new rule, growing in popularity, states that housing and transportation (H+T) should be no more than 45 percent of a household’s income. This H+T measurement favors transit-oriented forms of development versus auto-centric ones.

Eric Timar of Arlington County’s Housing Division discussed how people moving out of the urban core, including Arlington, often do so to save on rent. But such moves typically result in increased transportation costs and often counteract the benefits derived from the lower rents.

Lunch at the Lab AdMobility Lab’s Stephen Crim demonstrated how many areas of Arlington County that are considered unaffordable – according to the 30 percent housing rule – become in fact affordable when applying the H+T 45 percent rule. Crim stated that more people need to take into consideration transportation costs before making their housing decisions.

Mary Rouleau of the Alliance for Housing Solutions talked about creativity and density as two key factors in addressing affordability. Density has taken the form of micro-units (less than 450 square feet generally) recently. They are all the rage in New York City and are popping up in Washington D.C. as well.

Creative development strategies can yield great public benefits, such as affordable housing. Arlington’s vPoint development, built in the airspace over a church and comprising 46 market-rate and 70 affordable units, is a great example of such creativity.

We want to know what you think:

  • Is the D.C. metro area affordable compared to other areas of the country?
  • Are you part of the “New Gilded Age” our area is experiencing, or are you being left behind?
  • Would you live in a micro-unit?
  • Do you take into account transportation costs when choosing where to live?
  • Is Arlington’s future “for rich folks only?”

Photo by emma.maria

 
share this item

Subscribe to Receive Updates on the Latest Mobility Research and Trends

Arlington Virginia Department of Environmental Services

Arlington County Commuter Services (ACCS) is funded in part by grants from the U.S. Department of Transportation (DOT), the Virginia Department of Transportation (VDOT) and the Virginia Department of Rail and Public Transportation (DRPT)

ACCS Family of Sites
  • Arlington Transit
  • Arlington Transportation Partners
  • Bike Arlington
  • Capital Bikeshare
  • Car Free Diet
  • Car-Free Near Me
  • CommuterDirect
  • CommuterPage
  • Dieta Cero-Auto
  • The Commuter Store
  • Walk Arlington
  • Terms and Conditions
Follow Us
  • facebook
  • twitter
  • linkedin
  • youtube
  • instagram

© 2025 Mobility Lab, a program of Arlington County, Virginia