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TRB's National Cooperative Highway Research Program (NCHRP) Research Report 874: The Transportation Research Thesaurus: Capabilities and Enhancements documents the results of a comprehensive assessment of the Transportation Research Thesaurus’s (TRT’s) capabilities and strategies for the TRT’s future development. The TRT is a structured, controlled vocabulary of terms in English, used by TRB and a variety of other organizations to support indexing, search, and retrieval of technical reports, research documents, and other transportation information. The TRT, covering all modes and aspects of transportation, has evolved over a number of years and is continuously being refined and expanded.

Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2018. The Transportation Research Thesaurus: Capabilities and Enhancements. Washington, DC: The National Academies Press.

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Publication Info

116 pages | 8.5 x 11 |  DOI:

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