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Transportation  Research Thesaurus (TRT)


TRT Keywords:


The Transportation Research Thesaurus (TRT) is a tool to improve the indexing and retrieval of transportation information. The thesaurus covers all modes and aspects of transportation. The TRT's purpose is to provide a common and consistent language between producers and users of transportation information.

The TRT Web page allows for searching and browsing the thesaurus in various formats. Click on a thesaurus term to retrieve the "family" relationships (broader, narrower, and related terms). Click on the terms alpha code to retrieve the hierarchical display for the word.

A:  Transportation      N:
  Organizations
B:  Transportation Operations
      P:  Facilities
C:  Management and organization
      Q:  Vehicles and equipment
D:  Communication and control
      R:  Materials
E:  Planning and design
      S:  Physical phenomena
F:  Construction and maintenance
      T:  Disciplines
G:  Testing      U:  Mathematics
H:  Safety and security
      V:  Areas and regions
J:  Environment      W:  Time
K:  Economic and social factors
      X:  Information organization
M:  Persons and personal characteristics
        























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