Ключевые слова: alert, attention, attention sign, beware, caution, danger sign, danger symbol, danger warning, danger zone, hazard, hazard sign, hazardous, information, precaution, red alert, risk, risk management, road sign, safety, safety alert, safety notice, safety precaution, safety signage, sign board, signage, symbol, warning, warning board, warning label, warning message, warning sign, warning signal, yellow sign,