What does a steady yellow traffic light at an intersection signal to drivers?

A steady yellow traffic light serves as a warning to drivers that the light is about to change to red. It indicates that drivers should prepare to stop. When approaching an intersection, if a driver sees a yellow light, the correct action is to stop safely unless they are already in the intersection or too close to stop without making an abrupt maneuver. This signal promotes safety by ensuring that drivers are aware they need to make a decision; either stop if they can do so safely or continue cautiously if they are unable to halt in time.

The other options do not align with safe driving practices. For instance, speeding up to cross the intersection could cause accidents, while proceeding with caution is not the primary directive of a yellow light. Additionally, making a U-turn is not connected to the meaning of a yellow light, as drivers should be focusing on stopping or preparing to yield to the oncoming red light.