Geotextile in this application helps to improve the stability and durability of the track bed, reducing maintenance costs and improving safety. And, in the role of separation it is placed between the subgrade and the ballast layer, to distribute loads evenly, reducing the risk of settlement and track deformation. This helps to prevent the mixing of materials and provides reinforcement to the ballast layer as well as to restrain the foundation and foundation material against lateral movements and from wandering off sideways due to shocks and vibrations from running trains.
