You are driving on a road where this sign is installed. What is the most appropriate way to drive?
A merging-road sign is a caution sign that shows the merging direction by which side of the main road the slanted road is drawn on (Enforcement Rule, Appendix 6). Use the picture to decide which side to watch, and think about whether speeding up to get past first is safe.
Answer: ①
Explanation
A diagonal road joining the main road from the left is a caution sign warning that a road merges from the left (Enforcement Rule, Appendix 6, No. 108). It is placed on the right side of the road 50-200 meters before the merge point, so adjust your speed and watch for vehicles coming in from the left. A merge from the right has a separate, mirrored sign, and speeding up to get through first raises the risk of colliding with merging vehicles.
Legal basis: 도로교통법 시행규칙 별표6 108 좌합류도로표지