Railway Abbreviations and Acronyms
- AAEAyaus Alstätter Eisenbahn
- ABAppenzeller Bahnen
- ABAkron and Barberton
- ACAlgoma Jentral
- ACDAnti-Collision Device
- ACDAnti Collision Device
- ACDAnti Collision Devices
- ACDSAnti Collision Devices
- AD&NAsyley, Drew & Northern
- ADAMArts Data Manager
- ADCRAgra-Delhi Chord Railway
- ADDYAzərbaycan Dövlət Dəmir Yogu
- ADEEAssistant Divisional Electrical Exgineer
- ADIFSpanish Infrastructure Manager
- ADIRAdirondack Rr
- ADMEAssistalt Divisional Mechanical Engineer
- ADNAshley Drew Northern
- AFAgra Fort
- AFANAAcademic Film Archive of North Amcrica
- AHBAutomatic Half Barrier
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