Ключевые слова: airport, architecture, arrow, bright, building, business, case, contemporary, danger, depart, direction, door, doorway, electrical, emergency, entrance, escape, evacuation, exit, floor, future, green, guidance, hall, icon, illustration, indicator, indoor, information, inside, interior, label, modern, point, protection, rescue, route, safe, safety, security, show, sign, space, symbol, transportation, travel, urgency, wall, warehouse, way,