What does a yellow traffic light signify?

A yellow traffic light signifies that the signal is about to change to red, indicating that drivers should prepare to stop if it is safe to do so. This light serves as a warning to drivers that they need to make a decision on how to proceed based on their distance from the intersection and the speed they are traveling.

Increasing speed to clear the intersection can lead to dangerous situations, especially if the light turns red while a driver is still in the intersection. Proceeding with caution is an important aspect for many traffic situations, but the specific action advised by a yellow light is primarily to prepare to stop. Similarly, the idea of going only when no vehicles are present does not align with the intent of the yellow light, as it focuses on stopping and ensuring the driver takes the necessary precautions to do so safely rather than just moving through the intersection.