Ключевые слова: abstract, accident, arrow, asphalt, background, business, calendar, city, concept, direction, drive, forward, freeway, future, highway, hotel, instruction, kilometer, limit, maximum, mph, new, nobody, number, outdoor, parking, perspective, prevent, regulation, restriction, road, roadsign, rule, safety, sign, signpost, speed, speedway, street, success, symbol, time, traffic, transport, transportation, travel, urban, warning, way,