What does a yellow traffic signal mean for drivers?

A yellow traffic signal serves as a crucial warning for drivers that the green light is about to end. This signal indicates that drivers should prepare to stop. However, it is also essential to proceed with caution if stopping is not feasible, especially if there are vehicles close to the intersection. The intent behind the yellow light is to caution drivers that they need to be alert as the traffic condition is changing.

Understanding this signal helps to prevent accidents and ensures a smoother flow of traffic as vehicles transition from green to red, allowing time for those already in the intersection to clear. The other options misinterpret the purpose of a yellow signal; for example, an immediate stop may not be safe if too much momentum has been built up, while speeding up is dangerous and goes against safe driving practices. Waiting for a pedestrian to cross is more relevant to crosswalk signals rather than traffic lights. Hence, the appropriate response to a yellow light is to acknowledge that the green light is concluding and to proceed with due caution.