What does the following safety sign mean?
💡 Hint
Curved-road signs are caution signs told apart by how many times and in which direction the arrow bends (Enforcement Rule, Appendix 6). A triangle WARNS while a round blue sign INSTRUCTS, so check the shape of the sign first, then read the arrow.
Answer: ①
Explanation
An arrow bending once to the right inside a triangle is a caution sign warning of a road curving to the right (Enforcement Rule, Appendix 6, No. 111). It is placed on the right side of the road 30-200 meters before the curve begins, so slow down in advance. A right-turn-only instruction is a blue round indication sign, and a road curving right then left has a different sign with an S-shaped arrow.
Legal basis: 도로교통법 시행규칙 별표6 111 우로굽은도로표지