Advanced Rail Geotechnology - Ballasted Track

Advanced Rail Geotechnology - Ballasted Track

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Ballast plays a vital role in transmitting and distributing train wheel loads to the underlying sub-ballast and subgrade. Bearing capacity of track, train speed, riding quality and passenger comfort all depend on the stability of ballast through mechanical interlocking of particles. Ballast attrition and breakage occur progressively under heavy cyclic loading, causing track deterioration and rail misalignment�affecting safety and demanding frequent and costly track maintenance.