Which risk increases when a Roman road's camber declines?

💡 Explanation

Reduced road camber increases water accumulation, creating hydrostatic pressure; this reduces pavement support because stress concentrates on wetter infill materials, rather than being broadly distributed. Therefore, flooding and structural damage occur, rather than enhanced erosion or frost heave which affect upper structures.

• Which outcome resulted from using 'fire-arrows' during sieges?
• Which hydraulic effect diminished water pressure progressively downslope in early Mughal garden canal systems?
• Which outcome limits the height of dry-stone Inca walls?
• Which navigation error grows excessively when a ship's chronometer experiences irregular escapement behavior?
• Which design change to wooden sailing ships dramatically reduced hull deformation under sail?
• Which structural risk increased for stone fortifications built during the Roman empire when subjected to undermining?