Compiles definitions of transportation terms used throughout the Department of Transportation and other U.S. government agencies. The terms are organized by their common name, with each term appearing in bold print and followed by its definition and the source citation. Specific documents, publications or databases used to compile the report are identified in a source index. Terms are cross-referenced within the document and within a term index.

"A comprehensive inventory of transportation terms and their definitions."--Introduction, p. xi.