Ключевые слова: alert, attention, awareness, bold, caution, cautionary, clear, design, distinctive, emergency, environmental, essential, graphic, graphic design, graphic element, guideline, hazard, icon, immediate action, important, information, information sign, informative, instructions, location, message, notice, notice board, place, precaution, precautionary, professional, protocol, public, risk, safety, safety measure, safety signage, sign, signage, signage system, signaling, symbol, triangle, visibility, visual alert, visual communication, vivid, warning,