The Housing + Transportation Affordability Index, was developed by CNT and its collaborative partner, the Center for Transit Oriented Development (CTOD), as a project of The Brookings Institution’s Urban Markets Initiative.
Americans traditionally consider housing affordable if it costs 30 percent or less of their income. The Housing + Transportation Affordability Index, in contrast, offers the true cost of housing based on its location by measuring the transportation costs associated with place.
The first phase was released in January 2006 and specifically examined the variables that inform Housing + Transportation costs in St. Paul/ Minneapolis, MN. The key finding of this report is that location matters, and can affect the true cost of housing when transportation costs are factored in. For more information see The Affordability Index: A New Tool for Measuring the True Affordability of a Housing Choice.
The latest release in March 2010 expands the H + T analysis to over 330 metros in the U.S., providing coverage for more than 80% of the population in the U.S.