Ключевые слова: america, banner, ca, california, community, construction, design, ends, express lanes, freeway, guide, highway, in progress, info, information, infrastructure, lane, merge, message, metal, new, outdoors, posted, right, road, roadsign, san francisco bay, sign, signal, signpost, symbol, text, traffic, transport, transportation, travel, under construction, united states, us, usa, warning, yellow,