Ключевые слова: abstract, arrow, attention, backdrop, background, barrier, black, blank, construction, corner, cup, development, dirty, equipment, fence, guard, hazard, horizontal, limit, mark, old, outdoors, paint, pattern, peel, poverty, race, risk, road, roadside, scene, shape, side, sign, site, space, stop, street, striped, surface, symbol, team, texture, track, traffic, view, wall, warning, work, yellow,