The retractable bollard is used to block access by providing an impact-resistant obstacle, without hindering pedestrian traffic. ERO INDUSTRIE successfully combined: - Ruggedness and attractive design. - Quick and quiet operation. - Visibility and vandal resistance. - Reliability and stand-alone operation. There are many possible applications, such as protection of pedestrian areas, car park entrances, delivery areas, parking lots, and reserved parking spaces. - The semiautomatic retractable bollard: rise and slope by manual locking and unlocking