The sign you are referring to is the Direction arrow in curves. This sign indicates that the road ahead has a curve. The specific direction of the arrow tells drivers which way the curve goes—left or right.

When you see this sign, it is important to reduce your speed and prepare for the curve ahead. The sign is a warning to ensure that you can safely navigate the bend in the road.

Always use caution when approaching curves, as visibility may be limited and the road could be slippery, especially in adverse weather conditions. Adjust your driving accordingly to maintain control of your vehicle throughout the curve.