Warning sign placement is primarily based on which factors?

The placement of warning signs is primarily influenced by several critical factors, with location, speed, and type of application being at the forefront.

Location is crucial because the sign must be positioned where it can be readily seen by approaching drivers, giving them adequate warning of potential hazards or changes in roadway conditions. This involves considering both the physical geography of the area and typical driver behavior.

Speed is another vital factor, as signs must be placed at a distance that allows drivers enough time to react appropriately based on the speed limit. Higher speeds necessitate further warning signs in advance of a hazard to ensure that drivers can slow down safely.

The type of application pertains to the specific conditions of the work zone, such as construction, maintenance, or a detour. Each type of application may dictate different sign placements, sizes, or even types of warning signs that are most effective for the situation.

The other options, while relevant to various aspects of traffic management and safety, do not encapsulate the primary factors influencing warning sign placement as effectively as location, speed, and type of application do.