The main purpose of rail grinding can be defined as meeting ecological considerations (noise and vibration reduction), preventing rail damage, and preserving rail alignment and track geometry. Preventive rail grinding has been adopted on the main Shinkansen lines Tohoku and Joetsu of JR East since the start of revenue service, mainly for the purpose of noise reduction. This article looks at the preventive rail grinding strategy adopted on these Shinkansen lines of JR East.
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