Final answer:
FLAGGER AHEAD signs are positioned in the Advance Warning Area of work zones to alert drivers. This area provides advance notice for changes in traffic patterns. Other warning signs like curve speed warnings also utilize this concept.
Explanation:
FLAGGER AHEAD signs are typically located in the Advance Warning Area of work zones on roads to alert drivers about upcoming construction zones. This area provides drivers with advance notice to prepare for changes in traffic patterns and potential hazards.
For example, a curve speed warning sign would be placed in the advance warning area before a sharp curve, allowing drivers to reduce their speed accordingly.
Spot weather impact warnings are also placed in the advance warning area to caution drivers about potential weather-related road conditions.
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