Which type of security feature stops vehicles from crashing through the doors of a building?

A turnstile is a physical access control device that restricts and counts pedestrian entry one person at a time, and provides no protection against vehicle intrusion.

Bollards are a physical perimeter security control designed to resist vehicle impact, typically made of steel or reinforced concrete and embedded into the ground. They are rated by standards such as ASTM F2656 based on how much vehicle force they can withstand. Their placement around building entry points creates a vehicle barrier without completely obstructing pedestrian access.

A mantrap is a physical security vestibule with two interlocking doors used to prevent tailgating and control who enters a secured area, not a vehicle barrier.

A receptionist is a human control that can verify identity and manage visitor access but cannot physically stop a vehicle from crashing into a building.