Cant deficiency, also known as superelevation deficiency, in high-speed rail operation refers to the difference between the ideal superelevation (banking) required for a train to negotiate a curve at a given speed and the actual superelevation provided. Superelevation is the tilting of the track towards the inside of a curve to counteract the effects of centrifugal force, which pushes the train outward. The ideal superelevation is the amount of banking that would perfectly balance the centrifugal force, resulting in zero net lateral force on the train....
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