Ключевые слова: asphalt, bricks, city, clear, closeup, cold, de, deicing, footway, frost, frozen, grains, highway, ice, icing, icy, icy road salt, janitor, macro, melting, pathway, pavement, paving, pedestrian, pedway, road, road surface, safety, salt, salt grains, salting, sand, shoveling, sidewalk, snow, sodium chloride, street, temperature, town, track, traffic, transportation, walking, walkway, water, weather, white, winter,