Which of the following is an example of Advance Warning or Traffic Control Device Signs?

The choice of "Traffic Lights Ahead" is indeed an example of an Advance Warning or Traffic Control Device Sign. This type of sign is designed to alert drivers to conditions ahead so they can adjust their driving accordingly. Specifically, a sign indicating that traffic lights are ahead is crucial because it prepares drivers for the possibility of having to stop or yield, promoting safety and preventing accidents.

Advance warning signs serve to inform motorists about upcoming changes in road conditions or traffic control devices, enhancing both awareness and safety on the road. The sign for "Traffic Lights Ahead" effectively communicates the need for caution and prepares drivers for a change in traffic flow, allowing them ample time to respond.

In contrast, other choices such as "Merge Ahead," while also a warning sign, pertains specifically to lane configurations rather than traffic control devices. "Road Curve Signs" provide warnings about road geometry but do not relate to traffic signals, while "Speed Limit Signs" are regulatory signs that communicate speed restrictions rather than warnings about upcoming road conditions. Thus, "Traffic Lights Ahead" accurately represents an advance warning sign related specifically to traffic control devices.