Ключевые слова: alert, arrow, asphalt, blue, car, caution, concept, conceptual, crosswallk, curve, danger, direction, drive, green, highway, industrial, landscape, limit, lines, message, metal, nature, object, outdoors, pavement, pole, red, road, roadside, rule, safety, sign, signal, signpost, sky, slow, speed, stop, street, summer, symbol, traffic, transportation, travel, turn, warning, way, white, yellow,