Track ballast is the material which forms the trackbed upon which railroad ties (UK: sleepers) are laid. It is packed between, below, and around the ties...

rails, fasteners, railroad ties (sleepers, British English) and ballast (or slab track), plus the underlying subgrade. It enables trains to move by providing...

addition of soil to track ballast would reduce the friction between the individual ballast stones and make it easier for the track to shift out of place...

ballast tamper, informally simply a tamper, is a self-propelled, rail-mounted machine used to pack (or tamp) the track ballast under railway tracks to...

or exceptionally large loads Track ballast, the layer of crushed rock or gravel upon which railway track is laid Ballast (film), a 2008 film about the...

gravel track ballast that supports the ties in rail tracks. They are often used in conjunction with ballast tampers when maintaining track. Ballast regulators...

transport loose solid bulk commodities such as coal, ore, grain, and track ballast. The hopper car was developed in parallel with the development of automated...

A ballast cleaner (also known as an undercutter, a shoulder ballast cleaning machine) is a machine that specialises in cleaning the railway track ballast...

gondola designed specifically for carrying coils of metal. Track ballast gondolas carry ballast. These gondolas are side tipping. Wikimedia Commons has media...

support for the rails in railroad tracks. Usually laid perpendicular to the rails, ties transfer loads to the track ballast and subgrade, hold the rails upright...