Ключевые слова: access, accident, after, and, brembana valley, change, cold, conditions, countryside, danger, dangerous, drift, driver, driving, freezing, frost, highway, in, machinery, over the hill, precipitation, removal, road interrupted, safety, salt spreaders, scrape, season, service, severe, snow, snow clearing, spray, storm, street, tractor, transportation, travel, truck, valle serina, vehicle, viability, white, winter, wintry, with,