On which road areas is ice most likely to form?

• A. In open sunlit areas
• B. On dry pavement
• C. Low shaded areas, overpasses, and bridges
• D. In the center of the lane on rainy days

Answer: (C)

Ice forms on pavement where the surface is cold and moisture can freeze. The spots most prone to icing are areas where cold air pools or flows across the surface and shade keeps it from warming, such as low shaded areas. Bridges and overpasses stay colder than the surrounding roads because they’re elevated, exposed to wind, and don’t retain heat from the ground or sun, so moisture freezes there more readily. Sunlit, dry pavement tends to warm and dry out, making ice less likely, and typical water in the center of a lane on rainy days isn’t inherently more freezing than those shaded spots.