Name two common vehicle barriers used at facility perimeters.

• A. Bollards and crash-rated barriers.
• B. Keycard locks and bollards.
• C. Fences and cameras.
• D. Turnstiles and bollards.

Answer: (A)

Vehicle barriers at facility perimeters are all about physically stopping or slowing vehicle threats. Bollards are the vertical posts placed along boundaries to block or redirect a vehicle trying to ram through. Crash-rated barriers are engineered barriers that have been tested to withstand vehicle impacts, providing a higher level of protection against larger or faster vehicles. Using both together creates a layered defense: bollards offer immediate blocking and channeling, while crash-rated barriers provide robust, vehicle-penetration resistance at the perimeter. The other options focus on access control for people, detection, or pedestrian flow, which don’t directly provide the primary vehicle-blocking function needed at perimeters.