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A red octagon lettered ALTO.
Also known as: ALTO sign, Señal de alto, Mexican octagon sign
The Mexican stop sign, an octagon carrying the Spanish word for halt.
Requires a driver to stop before proceeding on the Mexican road network.
Contexts: Road signage
Uses ALTO where most Spanish-speaking countries use PARE, so the two Spanish-language stop words divide the region between them.
Contexts: Road signage
An eight-sided figure with a white border carrying four white letters across its centre on a red ground.