US Map

What is Location Efficiency?

While the concept of energy efficiency is a familiar term, locations can be efficient too. Compact neighborhoods with walkable streets, access to transit, and a wide variety of stores and services have high location efficiency. They require less time, money, and greenhouse gas emissions for residents to meet their everyday travel requirements.

The savings add up for households and communities. Transportation costs can range from 15% of household income in location efficient neighborhoods to over 28% in inefficient locations. Greenhouse gas emissions fluctuate too, depending on household reliance on costly, carbon-intensive automobile travel.

More on location efficiency and the H + T Index...

The Housing + Transportation Affordability Index is an innovative tool that measures the true affordability of housing based on its location.

Planners, lenders, and consumers traditionally measure housing affordability as 30 percent or less of income. The Housing + Transportation Affordability Index, in contrast, takes into account not just the cost of housing, but also its location efficiency, by measuring the transportation costs associated with place.

Compare and contrast two views of location efficiency

Housing and Transportation Affordability

Compare the traditional view of affordability with the new view including transportation costs. In all the cities, many distant suburbs are less affordable than they appear.

Household Auto Greenhouse Gas Emissions

Compare denser neighborhoods with more dispersed communities. Due to location efficiency, compact neighborhoods produce less CO2 per household related to driving.

Impact of Gas Prices

Compare the impact of 2000 and 2008 gas prices to see that location inefficient neighborhoods are more vulnerable to fluctuating gas prices.

Custom Comparison

Compare the impact of various pairs of characteristics, to understand what drives the affordability of a neighborhood. Choose your own comparison with "Custom Comparison."

With generous funding from the Rockefeller Foundation this site will be expanded in July 2009 to cover over 330 metros in the US.