What does it mean when a traffic signal turns yellow?

When a traffic signal turns yellow, it indicates that drivers should prepare to stop because the light is about to change to red. The yellow light serves as a warning that the signal is transitioning, providing adequate time for vehicles to slow down safely. This allows for a smooth flow of traffic and helps prevent accidents that could occur if a driver were to continue through the intersection without recognizing the change.

Recognizing the yellow light as a prompt to stop rather than to accelerate is crucial for safe driving practices. It reinforces the responsibility of drivers to be attentive and to act appropriately in response to traffic signals, thereby ensuring the safety of all road users.