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← HistoryWhich consequence results when Roman roads experience prolonged heavy cart traffic at relatively high temperatures?
A)Increased transverse cracking develops✓
B)Aggregate polishing effects appear rapidly
C)Subgrade soil consolidation accelerates
D)Longitudinal joint separation decreases
💡 Explanation
Increased transverse road cracking develops because thermal expansion combined with excessive compressive stress on pavement layers initiates plastic deformation, leading to crack propagation via a ratcheting mechanism. Therefore cracking emerges, rather than densification or joint changes, since Romans built flexible pavement structures.
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