Hazard signs are all in the form of: equilateral triangle - 1 horizontal edge - top pointing up, red border, light yellow background, black shape (except for the sign that intersects with the priority line). first) Signal 1 is a sign that pedestrians cross: when meeting this sign, vehicles must give priority to pedestrians. Signal 2 is a sign that prohibits pedestrians Sign 3 is a pedestrian road sign

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