Ключевые слова: alert, attention, background, banner, barrier, boundary, bright, build, business, caution, color, construction, danger, design, detour, flag, forbidden, frame, hazard, highway, icon, maintenance, object, obstacle, orange, pole, red, reflection, road, safety, security, shape, sign, site, space, stop, street, surrender, symbol, traffic, under, view, warning, work, yellow,