This document is an executive summary of a series of 16 briefs that collectively describe commuting in America. This body of work, sponsored by the American Association of State Highway and Transportation Officials (AASHTO) and carried out in conjunction with a National Cooperative Highway Research Program (NCHRP) project that provided supporting data, builds on three prior Commuting in America (CIA) documents that were issued over the past three decades. Unlike the prior reports that were single volumes, this effort consists of a series of briefs, each of which addresses a critical aspect of commuting in America. The briefs, this Executive Summary, and accompanying data tables complete the body of information known as Commuting in America 2013 (CIA 2013). AASHTO makes these items available via its website (