Ключевые слова: board, caution, command, crash, crisscrossing, cross, crossing, danger, graphics, industry, infrastructure, instruction, intersection, level, machine, mark, notice, order, outdoors, passage, rail, railway, red, regulations, road, safety, sign, st andrews cross, stop, street, symbol, traffic, trail, train, transit, transport, travel, unguarded, vehicle, warning, way,