46 U.S.C. § 55604 — Research on marine highway transportation

the economic effects of marine highway transportation on the United States economy;

the effects of marine highway transportation, including with respect to the provision of additional transportation options, on rural areas;

the environmental and transportation benefits to be derived from marine highway transportation alternatives for other forms of transportation;

technology, vessel^* design, and other improvements that would reduce emissions, increase fuel economy, and lower costs of marine highway transportation and increase the efficiency of intermodal transfers; and

solutions to impediments to marine highway transportation projects designated under section 55601.