In 2007 and 2008, the Federal Highway Administration (FHWA) sponsored a research effort to compile and analyze information on the quality of America's byways and the results of projects funded through the National Scenic Byways Program. These reports were produced under contract with R.D. Mingo and Associates, and any findings or opinions expressed are those of the authors and not necessarily the Federal Highway Administration.
Note: This effort was completed prior to the de-designation of the Tamiami Trail Scenic Highway in Florida as a National Scenic Byway, and statistics and data presented include the Tamiami Trail.