Ключевые слова: arrow, blocked, bright, building, business, closed, construction, door, faade, facility, high voltage, hit, house, industrial, industry, infrastructure, no way, notice, person, platform, power, power plant, power supply, powered, red, room, rule, safety, shock, signed, staff, staff only, street, strike, stroke, supply, symbol, technical, tension, traffic, travel, tube, urban, ventilation, walk, walk in, wall, warning, yellow,