Ключевые слова: attention, background, building, bulgaria, care, caution, city, copy, danger, day, design, direction, driving, element, europe, illustration, information, journey, location, mark, message, metal, no, object, outdoors, outside, pole, post, regulation, road, roadsign, rules, safety, security, sign, signpost, sky, space, stopping, street, sunny, text, town, traffic, transport, trip, urban, vehicle, warning, way,