Ключевые слова: air vehicle, architecture, asphalt, barricade, boundary, built structure, business, car, city, city life, concrete, construction barrier, construction industry, construction site, danger, day, emergency services, equipment, forbidden, highway, industry, land vehicle, mode of transport, no people, outdoors, people, protection, red, road, road sign, roadblock, safety, security, sign, sky, speed, street, symbol, traffic, traffic cone, transportation, travel, urban scene, warning sign, warning symbol, white,