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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> Management and organization > Policy, legislation and regulation > Branches of law > Constitutional law

Crd: Branches of law
Crdc: Constitutional law
 Crdcf: Federal conflict preemption (Law)

Broader Term:
Crd: Branches of law
 
Related Terms:
Crda: Air law
Crdi: International law
Crdk: Labor law
Crdm: Maritime law
Crdr: Railroad law
Crdt: Highway law
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