Cover: The coastline, harbors and navigable waterways in the United States are an essential component of the nation's overall transportation system. In this special issue of TR News, some of the current research, ideas and issues relating to ports, waterways, and intermodal connections are discussed. From left, coastal port container shipping at the Port of Long Beach, California; inland waterway barge shipping on the Mississippi River system; and bulk shipping at the Seaway Port Authority, Duluth, Minnesota.

Photograph credits (from left): Port of Long Beach; Alter Barge Line; Port Authority of Duluth.