Explain the role of cant deficiency in high-speed rail operation.
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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Gunasekar D
“Cant deficiency plays a crucial role in high-speed rail operation. Especially when train negotiates curve. it refers to the shortfall in teh actual cant compared to the ideal cant required for a train to perfectly balance the centrifugal force at a given speed on a curve. The main prupose of the cant deficiency is to allow that trains to operate at higher speeds on curves without increasing the physical cant therby optimizing track design and operational flexibility. When train travels faster than the speed for which the can was designed ite experiences cant deficiency . This means the train leans outward slightly due to insufficient cant to fully balance the centrifugal force. IT enables bothe high speed and slow speed traisn to use the same track. Controlled cant deficiency reduces lateral forces that cause rail wear and wheel wear.”
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