A flashing yellow signal indicates a need for caution upon approaching an intersection. Drivers are permitted to proceed through the intersection but only after yielding the right-of-way to any vehicles or pedestrians already present or posing an immediate hazard. For example, if another vehicle is already in the intersection or a pedestrian is crossing, one must allow them to safely continue before proceeding.
This traffic control device enhances safety by allowing for the continuous flow of traffic on a less-traveled roadway while still requiring drivers to be aware of potential conflicts. Its deployment can reduce delays and improve traffic efficiency compared to a standard stop sign or a fully-actuated traffic signal during periods of low traffic volume. Historically, these signals were implemented to address situations where a full traffic signal was not warranted but a standard yield sign was insufficient to manage conflicting traffic flows.
