On a road with a design speed of 60 km/h, which is the correct criterion for installing this sign?
Curved-road signs have curve-radius and intersection-angle criteria set for each design speed, and are placed on the right side of the road 30-200 meters before the curve begins (Enforcement Rule, Appendix 6). The lower the design speed, the smaller the radius criterion, so memorize each speed together with its numbers.
Answer: ③
Explanation
An arrow bending to the left is a caution sign warning of a road curving to the left (Enforcement Rule, Appendix 6, No. 112). It is installed when the curve radius and road deflection angle meet the table: for a design speed of 60 km/h, a curve radius of 150 m or less and a deflection angle of 45 degrees or more (100 m or less at 50 km/h, 60 m or less at 40 km/h). It is placed on the right side of the road 30-200 meters before the curve begins, so the end of the curve is wrong.
Legal basis: 도로교통법 시행규칙 별표6 112 좌로굽은도로표지