路牌 (lù pái) literally combines 路 (lù), meaning 'road' or 'path', and 牌 (pái), meaning 'sign', 'plaque', or 'board'. Together, they refer specifically to official signs placed along roads and streets to convey information to drivers and pedestrians — such as directions, speed limits, warnings, or place names. These signs are standardized by transportation authorities and follow national design guidelines in China.

路牌 are essential for navigation and road safety in urban and rural areas alike. You’ll see them mounted on poles, overhead gantries, or embedded in sidewalks. Unlike informal notices or advertisements, a true 路牌 is functional, regulatory, or informational — not decorative or commercial. They appear in both simplified Chinese characters and sometimes include pictograms or bilingual text (e.g., Chinese-English in tourist zones).