Ключевые слова: alert, asphalt, attention, barrier, border, boundary, building, carriage, cars, caution, city, cone, construction, danger, emergency, equipment, european, highway, indication, istanbul, lane, maintenance, object, obstacle, outdoor, plastic, portage, public, repair, road, roadway, roadwork, safety, security, sign, site, stop, street, support, symbol, thoroughfare, traffic, transport, transportation, triangle, turkey, urban, warning, work, workers,