Trackbed
Trackbed refers to the prepared foundation upon which railway tracks are laid. It is a critical component of the railway infrastructure, designed to support the weight of passing trains, distribute loads evenly, and maintain the stability and alignment of the track. The trackbed typically consists of several layers, beginning with the formation, which is the natural ground or excavated earth that has been graded and compacted.
Above the formation lies the sub-ballast layer, often composed of crushed stone or gravel, which acts as
The design and construction of the trackbed are crucial for ensuring the safety, ride quality, and longevity