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Maintenance of way workers repairing track in Japan
Maintenance of way workers repairing track in Japan
A section of jointed rail, on wooden ties, with spikes to secure the rails.
A section of jointed rail, on wooden ties, with spikes to secure the rails.
A hirail vehicle used by Sperry Rail Service to inspect tracks for defects
A hirail vehicle used by Sperry Rail Service to inspect tracks for defects
A track crew in Louisiana adjusting a railroad track using lining bars, in 1939.
A track crew in Louisiana adjusting a railroad track using lining bars, in 1939.
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Good quality track ballast is made of crushed stone. The sharp edges help the particles interlock with each other.
Good quality track ballast is made of crushed stone. The sharp edges help the particles interlock with each other.
Track ballast supports railway sleepers, which carry railway track.
Track ballast supports railway sleepers, which carry railway track.
Ballast must be irregularly shaped to work properly.
Ballast must be irregularly shaped to work properly.