Ключевые слова: accident, america, asphalt, attention, automobile, automotive, barricade, block, border, city, closed, construction, control, detour, development, emergency, hazard, highway, improvement, information, infrastructure, maintenance, neighborhood, obstacle, obstruction, pavement, progress, prohibited, protection, reconstruction, renovation, repair, road, roadsign, roadway, roadwork, route, safety, security, sign, signal, street, traffic, traffic sign, transportation, usa, vehicle, warning, work,