Bollard

A bollard is a short, sturdy post typically made of metal, concrete, or wood, used to control traffic, protect pedestrians, or prevent vehicle access to certain areas. They are often installed at the edges of sidewalks, in parking lots, or around sensitive sites to guide vehicles safely and prevent accidental or unauthorized entry. Bollards can be fixed or retractable, and some are designed to absorb impact to stop vehicles in emergencies, enhancing safety and security in public and private spaces.