Final answer:
A flashing red signal means drivers must stop and has the same meaning as a stop sign, ensuring that they yield to other road users before proceeding. In a roundabout, a flashing red signal requires entering drivers to stop and give way to those inside the circle, who will see a flashing yellow light.
Step-by-step explanation:
A flashing red signal at a traffic light typically has the same meaning as a stop sign. It requires drivers to come to a complete stop before proceeding through an intersection. This is particularly important in areas of traffic with varying traffic densities. When encountering a flashing red signal, drivers must stop and yield to other drivers and pedestrians before moving on. Conversely, a yellow blinking light typically indicates that traffic should proceed with caution but does not necessarily have to come to a complete stop unless there is crossing traffic or pedestrians.
In the context of a traffic circle or roundabout, if you encounter a red blinker, it means you must stop and yield to the traffic already within the circle. The traffic circulating inside the roundabout would experience a yellow blinking light, indicating they have the right of way but should stay alert and proceed cautiously.