Traffic signals and markings1 of 2
What does a flashing yellow arrow left-turn signal mean at a Michigan intersection?
The answer
Answer: C. A flashing yellow arrow left-turn signal indicates an unprotected left turn. Motorists may proceed into the intersection to turn left, but must yield the right of way to oncoming vehicles and pedestrians before completing the turn. Michigan's guide says this signal layout was adopted because reconfiguring the left-turn arrows helps traffic move through intersections more efficiently.
Source: What Every Driver Must Know — Chapter 5: Signs, Pavement Markings and Signals (p. 50)