Which equipment should be used to protect a crash scene and direct traffic away when appropriate?

• A. None; traffic will regulate itself.
• B. Cones, flares, signs, lighting.
• C. Only police patrol cars.
• D. Use barricades and stop signs alone.

Answer: (B)

Effective crash-scene traffic control relies on portable, highly visible devices that warn drivers early and clearly direct them away from the scene. Cones provide a movable periphery to establish a safe work zone. Flares add bright, attention-getting signals in day or night and in poor visibility. Signs communicate upcoming changes and restrictions, while lighting extends visibility so approaching drivers can see the setup from a distance. Together they create a protected area for responders and help channel traffic safely around the crash.

Relying on drivers to regulate themselves is unsafe, and relying only on police patrol cars may not establish a clear or sufficient barrier. Barricades and stop signs alone can be inadequate for fast-moving traffic or poor lighting since they may not provide enough warning or guidance. This combination of cones, flares, signs, and lighting offers the most effective, adaptable protection and traffic direction at a crash scene.