The Office of Planning worked with the Center for Neighborhood Technology to customize their “H+T” housing and transportation index for our region, and to incorporate more recent American Community Survey data as well as Census data.

Along the western Red Line corridor in Montgomery County or the Orange Line in Arlington, for instance, housing is fairly expensive, often exceeding 30 percent of Area Median Income, the standard threshold for “affordability.” After studying metro areas across the nation, with excellent transit infrastructure or none at all, they determined that 15 percent of AMI was a good threshold for reasonable transportation costs.

[Continue reading David Alpert’s post at Greater Greater Washington.]

David Alpert is founder and editor of Greater Greater Washington. The Local Blog Network is a group of bloggers from around the D.C. region who have agreed to make regular contributions to All Opinions Are Local.