Ключевые слова: attention, caution, city, color, colorful, concept, conceptual, control, danger, day, figure, freedom, go, green, human, lamp, life, light, man, moving, pattern, people, protection, regulation, road, rule, safe, safety, security, semaphore, signal, stoplight, street, symbol, traffic, traffic lights, transport, tree, urban, walk, warning, way, yes,