You are driving on a road where this sign is posted. What is the most appropriate way to drive?
The picture on a caution sign shows the road shape ahead, so the directions the road continues in the picture are the directions you can go (Enforcement Rule, Appendix 6). Check whether any road continues straight ahead, and do not confuse the picture with the roundabout, merging-road or median-strip signs.
Answer: ④
Explanation
The picture is a caution sign warning of a T-shaped intersection where the road ahead ends and you can only go left or right (Enforcement Rule, Appendix 6, No. 102). Since you cannot go straight, slow down early, turn on your turn signal, and prepare to turn left or right. Roundabouts, merging roads, and median-strip beginnings use completely different pictures, and overtaking across the centerline is dangerous in itself.
Legal basis: 도로교통법 시행규칙 별표6 102 T자형교차로표지