Which two statements about this sign are correct? Select TWO
In a construction or work zone, equipment or workers can appear suddenly, so the warning is given over a wider distance range than other caution signs (Enforcement Rule, Appendix 6). Consider that vehicles approach the work zone from both directions, and that not seeing anyone does not mean there is no danger.
Answer: ②, ③
Explanation
A picture of a person working with a shovel is a caution sign warning of construction or work on or beside the road (Enforcement Rule, Appendix 6, No. 135). It is installed on both sides of the work site, together with safety facilities such as barriers and traffic cones, on the right side of the road 50 meters to 1 kilometer before the work point (with a supplementary sign when placed 200 meters to 1 kilometer ahead). Equipment or workers may suddenly appear in a work zone, so slow down even if you do not see any workers.
Legal basis: 도로교통법 시행규칙 별표6 135 도로공사중표지