How should cones be spaced on a scene?

• A. Cones should be spaced 30 feet apart.
• B. Cones should be spaced 50 feet apart.
• C. Cones should be spaced 70 feet apart.
• D. Cones should be placed 15 feet apart.

Answer: (B)

Cones on a scene are there to channel traffic and create a clear, predictable path for approaching drivers, giving them time to slow and maneuver safely while responders have space to work. The best spacing is a moderate, even interval that defines the lane without crowding the roadway or leaving large, unseen gaps. If cones are placed too close together, the pattern can become cluttered and confusing for drivers, increasing the risk of misdirection or collisions. If they are spaced too far apart, the warning becomes less effective and drivers may not perceive the closure in time, jeopardizing safety for both motorists and responders. A well-balanced, middle-ground spacing provides a clear cue with adequate reaction distance, which is why this approach is favored.