What’s an important factor in determining signage placement?

The placement of signage in a work zone heavily relies on the driver's line of sight and stopping distance. This consideration is crucial because effective signage must be visible and understandable to drivers as they approach potential hazards or changes in road conditions. If signage is obstructed or placed too far back from the point where drivers need to react, it may lead to unsafe situations, including sudden stops or collisions.

By ensuring that signs are positioned where they can be easily seen and comprehended within a driver’s stopping distance, authorities can provide adequate warning and guidance, facilitating safer navigation through work zones. Factors such as sign color, size, weather conditions, and time of day can certainly influence visibility and readability; however, without prioritizing the line of sight and stopping distance, these elements may not be as effective in ensuring driver safety.