Ключевые слова: access, area, automate, automated, automatic, barrier, block, bollard, border, caution, city, control, crash, danger, design, driveway, electric, exterior, gateway, guard, iron, lift, lifting, limited, mechanical, metal, modern, object, pavement, pedestrian, pillar, pole, post, prevent, protect, retractable, road, safety, security, sidewalk, sign, steel, stop, street, traffic, transportation, urban, zone,