What does a yellow arrow on a traffic signal indicate?

A yellow arrow on a traffic signal serves as a warning to drivers that the light is about to change, transitioning from a green arrow to a red signal. This indication means that drivers should prepare to stop and yield the right of way to oncoming traffic. The yellow arrow alerts you that the protected turn being signaled is coming to an end.

Understanding this is crucial for safe driving. When you see a yellow arrow, you should slow down and be ready to stop if it changes to red. The purpose of this signal is to enhance traffic safety by ensuring that drivers are aware they need to be cautious and ready to yield, especially if oncoming vehicles may have the right of way. This also prevents confusion and helps maintain a steady flow of traffic as the signal changes.