Symbol Signs: The Development of Passenger/Pedestrian Oriented Symbols for Use in Transportation-Related Facilities (report PB-239352)
The pattern
This still sits in the public-domain pool. No pattern name yet.
Why it works
AIGA documented the rigorous semiotic testing and visual harmonization of universal transit pictograms for the U.S. Department of Transportation. Establishing clear legibility criteria and unified geometric foundations created an international standard that bypassed language divides.
Steal this when
Steal this when developing universal icon systems or UI wayfinding that must function across global multilingual audiences.