Ключевые слова: access, architecture, area, automatic, barricade, barrier, blurred background, bollard, city, control, crowd, danger, electric, gate, gateway, go, human legs, hydraulic, legs, man, many people, metal, modern, outdoors, parking, pavement, pedestrian, people, person, pillar, post, protect, protection, retractable, road, safety, security, selective focus, shoes, sidewalk, steel, stop, street, traffic, transportation, urban, walking, zone, zones,