What type of signal might be installed for a dedicated turning lane?

A separate signal head is the appropriate choice for a dedicated turning lane because it provides specific and clear instructions for drivers using that lane. This type of signal can be designed with unique indications that cater specifically to the turning movement, often including a dedicated arrow signal to guide vehicles safely and effectively through the intersection.

Dedicated signal heads help minimize confusion by distinguishing between straight-through traffic and turning vehicles. This separation is crucial for increasing safety and improving the flow of traffic, especially where turning movements might otherwise conflict with oncoming traffic or pedestrians.

The other options, while relevant in broader traffic management contexts, do not serve the same purpose as a dedicated signal head in a turning lane situation. A flashing yellow signal may alert drivers to proceed with caution but does not provide the specificity needed for turn movements. A pedestrian signal is designated for guiding foot traffic, not vehicle operations, and a stop sign is used to halt traffic rather than directing turns.