A track bed is the foundation that supports railway tracks. It consists of layers of materials, including gravel or crushed stone, which provide stability and drainage. The track bed helps distribute the weight of trains and prevents the tracks from shifting or sinking over time. The design of a track bed is crucial for safe train operations. It ensures that the tracks remain level and aligned, which is essential for smooth travel. Proper maintenance of the track bed is necessary to avoid issues like track deformation, which can lead to accidents involving trains and railway infrastructure.