Which of the following contributes to slippery road conditions?

Shaded areas contribute to slippery road conditions primarily because they tend to remain cooler than other parts of the roadway. In cold climates, shaded areas are often the last to thaw after snowfall or ice accumulation. This can lead to patches of ice forming in those zones, creating a hazardous situation for drivers. Drivers may not expect to encounter slippery surfaces in these areas if they see that the rest of the road is clear or dry.

While dry leaves can be slippery, they are more of a concern primarily in certain conditions, such as when wet. New asphalt generally has good traction initially, and well-lit roads primarily enhance visibility rather than contribute to slippery conditions. Understanding the nature of shaded areas helps drivers remain cautious when encountering them, especially in cooler weather, and enhances overall driving safety.