Ключевые слова: accuracy, ahead, alert, asphalt, attention, background, barrier, boundary, caution, color, concept, cone, construction, danger, design, driver, equipment, forbidden, hazard, highway, lined, nobody, object, obstacle, orange, outdoors, plastic, post, red, road, roadway, safety, saturated, security, shadow, sign, signal, stop, street, stripe, striped, symbol, traffic, transportation, urban, venue, vibrant, warning, white, work,