Which of the following describes the indication of a yellow arrow signal?

A yellow arrow signal specifically indicates that the protected turn you are currently allowed to make is about to end. It serves as a warning to drivers that they should prepare to yield or stop because the signal is about to change. This means that drivers who are in the process of making a turn should be careful and ensure that they are aware of oncoming traffic and pedestrians before completing the maneuver.

This signal is important for maintaining safety at intersections, as it helps to transition drivers from a protected turn state (where they can turn without conflict) to a situation where they may need to yield to other traffic. It does not suggest increasing speed or making turns without regard for oncoming traffic, nor does it require drivers to stop completely as they might with a solid yellow or red signal. Understanding the meaning of the yellow arrow is essential for executing turns safely.