Which roadbed failure resulted when Roman roads traversed waterlogged soil?

💡 Explanation

Subgrade rutting occurs because excessive moisture weakens the soil, decreasing load-bearing capacity causing deformation under load, therefore rutting is the failure mode rather than cracking needing temperature changes, or erosion, or delamination necessitating material weakness not present.

• Which stability risk increased during the construction of Roman roads across marshy terrain?
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