Ключевые слова: accident, alert, alertzone, attention, authority, barrier, black, bold, brown, caution, cleanbackground, construction, danger, dangerarea, emergency, exclamation, fence, hazard, hazardzone, indication, industrial, isolated, minimal, no repetition warning, obstruction, prevent, prevention, protected, protection, restricted, risk, roadblock, rules, safety, safetyalert, secure, securearea, securezone, sharp, sign, signage, signageboard, stop, striped, symbol, triangle, visualcue, warningzone, workplace, yellow,