Access to NASA's current and historical aerospace research and engineering results

Publications, audiovisual materials, computer datafiles, and software originating from U.S. federal agencies, industry and university contractors with the federal government, and research and development organizations.
Central resource for government-funded scientific, technical, engineering, and business related information

TRID covers all modes and disciplines of transportation and contains more than 900,000 records for books, technical reports, conference proceedings, and journal articles in the field of transportation research.