Bollards are physical barriers designed to prevent vehicles from ramming into or breaching secure facilities. They are often placed at entrances, around perimeters, or in front of critical infrastructure like data centers.

Locks, cameras, and fences provide important physical security, but they cannot stop a high-speed vehicle from causing damage. Cameras record activity, fences create boundaries, and locks secure access points, but only bollards physically block or mitigate vehicle attacks.

Governmental and critical infrastructure sites commonly deploy bollards to protect against both accidental collisions and deliberate vehicle-borne attacks. Combined with layered security measures—such as surveillance and fencing—they enhance resilience against physical threats to sensitive data centers.