What is the purpose of a security bollard?

The purpose of a security bollard is primarily to direct traffic while also providing a physical barrier to protect pedestrians and property from vehicles. Bollards are designed to be sturdy and are often strategically placed at vulnerable points, creating a controlled flow of vehicular movement around an area. This helps to enhance safety and security by preventing unauthorized or erratic vehicle access in pedestrian zones or sensitive locations. While some bollards may have aesthetic designs, their fundamental function aligns with traffic management and security, making the first choice the most appropriate. The other options, while they may be incidental uses of bollards in some contexts, do not capture their principal function which is related to traffic direction and security measures.