Ключевые слова: accident, alert, attention, auto, barricade, barrier, blink, block, blocked, bulb, caution, city, cityscape, construction, construction lights, danger, dangerous, detour, driving, emergency, flash, hazard, industrial, lamp, light, night, obstacle, road, roadblock, roadwork, safe, safety, sign, signal, street, symbol, traffic, transport, transportation, travel, urban, warn, work, yellow,