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Two incompatible sign vocabularies across one region.
Also known as: Vienna and MUTCD divide, Latin American sign systems, Regional convention split
The division of Latin America between countries signing to the Vienna Convention's shapes and countries signing to the North American manual's.
Divides Latin America between countries whose warning signs are triangles and countries whose warning signs are diamonds.
Contexts: Road signage
Follows influence rather than geography, so two neighbouring countries may sign the same hazard with different shapes and a driver crossing the border must re-read the whole vocabulary.
Contexts: Road signage
Not a single mark but a division between two sign vocabularies, one warning on a triangle and the other on a diamond standing on its corner.