Ключевые слова: allow, art, background, black, blue, city, color, control, crossroads, danger, design, direction, electric, element, equipment, forbidden, green, guidance, highway, icon, illuminated, illustration, image, intersection, isolated, lamp, light, object, red, regulate, regulation, road, safety, semaphore, shiny, sign, signal, speed, stop, stoplight, street, symbol, traffic, transport, transportation, urban, warning, white, yellow,