• The Transportation Research Information Services (TRIS) Database is the world's largest and most comprehensive bibliographic resource on transportation research information.

• TRIS is produced and maintained by the Transportation Research Board at the National Academies with sponsorship by State Departments of Transportation, the various administrations at the U.S. Department of Transportation, and other sponsors of TRB's core technical activities.

• TRIS contains almost 750,000 records of published research.  Over 52,000 records now have links to full-text documents.
  

• TRIS covers all modes and disciplines of transportation. Efforts have been made to increase coverage on the various transportation modes and in the areas of planning, environment, and human factors.

• TRIS is now available on TRB’s Website. 
  

• In 2009, TRB released a new Website for sponsors – TRISworld, TRISworld combines the TRIS database and the English language records from the International Transport Research Documentation (ITRD) Database.

• The Research in Progress (RiP) records in TRIS are available as a separate searchable database through TRB. The RiP Database has expanded to include international research projects and university research.

• TRIS is indexed with a standardized vocabulary from the Transportation Research Thesaurus (TRT).
  

• Researchers can submit a published transportation report or document online to be indexed for TRIS.

For information on TRIS contact:

Barbara Post
Manager, Information Services
Transportation Research Board
Phone: (202) 334-2990
Fax: (202) 334-2527