EntityQ12111866· pop 7· linked from 138 articlestrack maintenanceSign in to savemethod or steps that maintain, clean up, or repair a railway and lengthens its lifespanConnectionsrailway trackEntityInternational Standard Book NumberEntityyardEntityOCLC, Inc.EntityexcavatorEntityGotthard Base TunnelEntityrailEntityrailroad switchEntityrailroad tieEntitycircuit breakerEntityoverhead contact lineEntityrailway signalEntitythird railEntityrailway electrification systemEntitybucklingEntitypantographEntityCentral Japan Railway CompanyEntityJapan Railways GroupEntityBritish RailEntitycrushed stoneEntityCategoriesPermanent wayRail transport operations