Ключевые слова: accident, alert, area, attention, background, barricade, barrier, black, border, boundary, caution, challenge, construction, crime, crumpled, danger, dangerous, design, entry, forbidden, hazard, horizontal, isolated, line, nobody, police, prohibited, protect, protection, quarantine, restricted, ribbon, risk, safety, scene, security, sign, site, stop, strip, stripe, symbol, tape, text, warning, yellow, zone,