Transportation Research Thesaurus

Top Terms

• Transportation
• Transportation operations
• Management and organization
• Communication and control
• Planning and design
• Construction and maintenance
• Testing
• Safety and security
• Environment
• Economic and social factors
• Persons and personal characteristics
• Organizations
• Facilities
• Vehicles and equipment
• Materials
• Physical phenomena
• Disciplines
• Mathematics
• Areas and regions
• Time
• Information organization

The thesaurus can be navigated in several ways:

• If you know the hierarchical scheme, click on the Top Term on the left side of the screen.
• To browse the entire hierarchy, click on the Hierarchical View link at the top of the screen.
• If you know the first word of the term, click on the Alphabetical View link at the top of the screen.
• If you are unsure of the correct term, enter the term in the search box at the top of the screen. See search tips below.

Search Tips:

• Use * for multiple character truncation
  Ex: financ* finds finance, finances, financing, financed, and financial
• Use # for single character truncation
  Ex: wom#n retrieves both woman and women
• Supports Boolean searching: AND, OR, NOT
  Ex: control AND traffic NOT air