Ключевые слова: advance, alert, attention, brake, caution, country, daylight, direction, distance, drive, forward, generating, give, highway, hills, icon, information, instructions, intersection, interstate, lane, law, merge, message, notice, outdoors, outside, pole, red, regulation, rest, road, roadside, roadsign, rule, rural, safety, sign, signage, signal, stop, street, symbol, traffic, transportation, triangle, warning, way, white, yield,