A steady yellow left arrow appears as you approach the intersection. Which action is required?
Correct answer: C – Stop at the line if you can do so safely
Traffic facing a steady yellow arrow must stop at the marked stop line or before the intersection unless it is too close to stop safely. The arrow does not give permission to accelerate through the turn. If you cannot safely stop, continue through the intersection with appropriate care.
Source: 700 CMR 9.06(10)(e) – Obedience to Traffic Control Signals: Steady Right and Left Yellow Arrows





