About 30 meters before an intersection, the driver of the car ahead holds the left arm straight out horizontally through the driver's window, keeping it still. What is the car ahead about to do?
Drivers' hand signals are distinguished in Table 2 of the Enforcement Decree by the position, direction and movement of the arm. Note which arm is used and whether it is just HELD OUT or WAVED, and also recall how many meters before an intersection a turn signal must be given (Article 38(1) of the Road Traffic Act).
Answer: ④
Explanation
Under Appendix 2 item 1 of the Enforcement Decree, extending the left arm horizontally out of the left side of the car is the signal for a left turn (or a lane change to the left), given from 30 meters before the edge of the intersection. A right-turn signal is the right arm held horizontally or the left arm bent at the elbow and raised vertically. A horizontal arm means "overtake me" only when the hand waves back and forth, and the stop signal is the arm extended 45 degrees downward.
Legal basis: 도로교통법 제38조 제1항, 시행령 제21조 별표2 제1호