Vikram knew what that meant. Waterlogged ballast. The stones beneath the sleepers, meant to drain and cushion, were saturated. If they didn't fix it, the signalling system would think the track was occupied. Or worse – the track would actually shift.
Arjun’s face paled. “If we can’t clear it…” railway works engineering by m.m. agarwal pdf
“We build a temporary catch drain,” Vikram said, already moving. “Here, where the formation dips. Shovel.” Vikram knew what that meant