Ключевые слова: background, blue, building, car, city, cloud, concept, control, crossroad, danger, design, faded, filtered, green, icon, illuminated, lamp, light, object, order, pedestrian, poland, post, protection, purple, ready, red, retro, road, roadsign, safe, safety, school, sign, signal, signpost, sky, space, stop, street, symbol, szczecin, traffic, transport, transportation, urban, vintage, walk, warning, yellow,