Track ballast
Encyclopedia : T : TR : TRA : Track ballast
Track ballast, consisting of gravel, cinders or other aggregate, forms the trackbed upon which railway ties (US) or sleepers (UK) are laid. It is used to facilitate drainage of water, and to create even running surface.
The ballast also holds the track in place as the trains roll by.
See also
- Track maintenance and Maintenance of way
From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.