Welcome to the TRT
The Transportation Research Thesaurus (TRT) is a tool to provide a common and consistent language between producers and users of transportation information. The TRT covers all modes and aspects of transportation. Terms are arranged in hierarchies under 21 top concepts.
You can search the TRT by keyword, or browse alphabetically and by hierarchy. Click on any term to view its relationships (broader, narrower, and related terms) and to find records indexed with that term in TRB’s TRID, Research in Progress (RIP) and Publications Index databases.
Resources
- The TRT: Your Multi-Tool for Finding and Organizing Transportation Information
- Super Searching with the TRT
- Keywords for the Technical Report Documentation Page: Let the TRT Help
- About TRB’s Transportation Research Information Services (TRIS)
- TRID--the TRIS and ITRD Database
- Research in Progress (RIP) Database
- TRB Publications Index
- TRIS Databases: Documentation & Training Materials
