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Transportation Research Thesaurus

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Each term in the TRT is assigned a unique notational code that conveys its location within the hierarchy. The first letter of the notation represents the facet or top term. Using the notational code it is easy to determine the terms relation in the hierarchy. The term's parent (Ae) will have one less letter (from the right end) as the term (Aea). Siblings (Aeg, Aes) will have the same notational code as the term except the last letter will be different. Children (Aeac, Aeah) will have one letter appended to the end of the notational code of the term.

Hierarchical Display

Top Terms> Communication and control > Detection and identification > Detection and identification devices > Detectors > Types of detectors > Scintillation counters

Dmgde: Types of detectors
Dmgdex: Scintillation counters

Broader Term:
Dmgde: Types of detectors
 
Related Terms:
Dmgdeb: Acoustic detectors
Dmgdee: Infrared detectors
Dmgdeh: Loop detectors
Dmgdek: Magnetic detectors
Dmgdem: Magnetometer detectors
Dmgdeq: Microwave detectors
Dmgdet: Optical detectors
Dmgdeu: Photodetectors
Dmgdew: Proximity detectors
Dmgdey: Video imaging detectors
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