Traffic signals and markings1 of 2
What must you do when approaching a flashing red traffic light at an intersection in Massachusetts?
The answer
Answer: C. A flashing red traffic light has the exact same legal meaning as a STOP sign in Massachusetts. Motorists must come to a complete stop at the stop line or crosswalk, look in all directions to yield the right-of-way to other traffic and crossing pedestrians, and proceed only when clear.
Source: Massachusetts Driver's Manual — Chapter 4: Motor Vehicle Signals (p. 81)