What does this triangular sign with a red border and a curve to the right inside it mean?

Question

DentroTest · Accepted Answer

The sign shown is P-13a, which belongs to the group of warning signs (triangular shape with a white background and a red border). Its regulatory purpose is to alert road users to the proximity of a dangerous curve to the right. When facing this sign, the driver must slow down and adapt the path to take the curve safely. It does not require following the direction of any arrow, because mandatory signs are circular with a blue background (like R-400). And it does not prohibit turning right, because turn prohibition signs are circular with a red border and a white background (R-302 for the right turn).

What does this triangular sign with a red border and a curve to the right inside it mean?

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