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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> Persons and personal characteristics > Human characteristics > Perception

Mx: Human characteristics
Mxt: Perception
 Mxta: Auditory perception
 Mxtb: Olfactory perception
 Mxtd: Depth perception
 Mxtm: Motion perception
 Mxts: Distance perception
 Mxtu: Velocity perception
 Mxtv: Visual perception
 Mxtw: Wayfinding
 Mxtx: Tactile perception

Cross Reference:
Mxrdh: Human information processing
 
Broader Term:
Mx: Human characteristics
 
Related Terms:
Mxa: Human factors
Mxb: Physical condition
Mxc: Physical handicaps
Mxk: Mental condition
Mxm: Mental disorders
Mxn: Mental retardation
Mxp: Personality
Mxq: Emotions
Mxr: Abilities
Mxs: Motivation
Mxw: Distraction
Mxy: Human subject testing
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