Ключевые слова: architecture, art, bollard, bollards, capital, conceptual art, control, copy, danger, daytime, gate, industrial, isolated, linear, metal, modern, movement, nobody, outdoors, post, protection, rail, railroad, retractable, road, round, safety, security, space, steel, street, tourist, traffic, transport, transportation, travel, ukraine, united kingdom, vehicle, visiting, wales, warning, weekend, white,