What is the purpose of ballasting in track maintenance?

Ballasting is a crucial aspect of track maintenance primarily aimed at maintaining track stability and alignment. The ballast, which consists of crushed stones or gravel, serves to support the weight of the railroad ties and distribute the load from the trains across the surface beneath. This distribution helps prevent excessive settlement and deformation that could lead to misalignment of the tracks.

Additionally, the ballast aids in drainage, ensuring that water does not accumulate around the ties and track structure, which could lead to deterioration of components. By holding the ties in place, the ballast allows the track to remain level and secure, thus ensuring safe and efficient train operations. Overall, the correct function of ballasting directly impacts the safety and performance of the railway system.