This report is part of a series of report and tools developed as a part of the U.S. Department of Energy Transportation Energy Futures project. There is a substantial amount of literature that examines the relationship between the built environment, travel, and energy use and this report reviews and summarizes it. It was developed with the intent to inform national policy experts and decision makers about how changes to land use and the built environment could reduce transportation energy use and identifies possible federal actions that effect the built environment.