At intersections where a full stop isn't necessary at all times, that's where you'll find Yield Signs, according to the Manual on Uniform Traffic Control Devices
(MUTCD) regulatory Signs section. Vehicles controlled by Yield Signs need to be prepared to let other drivers merge onto their lane to take the right-of-way. Yield Signs alert drivers to slow down, stop when necessary, and look out for oncoming vehicles.
Yield Signs are also used to remind drivers to slow down and let pedestrians, bicycles, and traffic cross through the path of traffic. Ensure traffic is moving in the correct direction - and safe - by complying with all rules on the road, especially Yield Signs.