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Which layer of the pavement structure is typically targeted for strengthening through overlaying?

59. Which layer of the pavement structure is typically targeted for strengthening through overlaying?

1. Subbase
2. Base course
3. Surface course
4. Subgrade

Answer

The correct answer is: C) Surface course

Explanation

Overlaying adds a new layer to the surface course of the existing pavement, improving its structural integrity and ride quality.