A yellow arrow signals you to:

A yellow arrow is a warning signal that indicates the light is about to change. It is specifically used to alert drivers preparing to make a turn, particularly a left turn, that they need to prepare to yield and possibly stop. When you see a yellow arrow, you should slow down, look for oncoming traffic or pedestrians, and be ready to yield the right-of-way, reinforcing safety for both yourself and others on the road. This signal indicates that you are not in a clear right-of-way situation and that caution is necessary as the traffic light will change soon.

In contrast, continuing to move forward without stopping, making an immediate left turn, or speeding up to clear the intersection would not be appropriate actions when presented with a yellow arrow, as these could lead to potential accidents or violations of traffic laws.