The evolution of particle breakdown in railway ballast – the crushed rock under railway tracks to absorb the weight of trains – has been modelled. Sun YiFei from the University of Wollongong led a ...

Mathematical models are extremely limited at modeling ballast, the gravel layer located under railway tracks. Researchers have shown that a large part of the energy introduced by a train passing is ...

Clinkety-clack. Clinkety clack. The train has left the station. What remains is the solitary railway track. Oh wait, the track is not alone. The track sleeps on the stone bed. I know where your mind ...