Ключевые слова: alert, background, bridge, caution, close up, crossing, danger, dangerous, day, deck, estate, homes, houses, information, infrastructure, instruction, message, neighborhood, notice, pole, post, precaution, property, rail, railing, railroad, railroad sign, railway, real, residence, road sign, safety, sign, signage, snow, snowy, structure, sunny, track, train, transportation, warn, warning,