Ключевые слова: arrow, background, building, ceiling, color, danger, design, direction, drill, emergency, escape, evacuation, exit, face, fire, front, glass, green, guide, guideline, hanging, hotel, indoors, industrial, industry, info, information, instruction, label, led, light, message, plastic, plate, procedure, raised, run, safe, safety, security, side, sign, symbol, text, tower, transparent, view, warning, way, white,