Ключевые слова: alert, asphalt, caution, city, concept, crossing, danger, flat, footpath, footway, go, grey, highway, human, icon, lane, law, limit, marking, outdoor, painted, pavement, pedestrian, pedestrian sign, public, road, road marking, road sign, road traffic, road traffic safety, roadsign, route, safety, sidewalk, sign, silhouette, street, symbol, track, traffic, transport, urban, walk, walkway, warning, way, yellow, yellow road marking, yellow sign, zone,