A signboard that provides direction or information to travelers, such as a road sign showing distances or destinations.
Compound of guide and board; developed as a practical word in the 18th-19th centuries when road systems and tourism expanded, needing standardized directional signs.
Guideboards evolved into modern road signs, and their design reflects genuine psychology—the most readable guideboards used sans-serif fonts and high contrast, principles we now take for granted in wayfinding design.
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