A1 A-A1 A AAR Absolute Block System Acceptance Active Suspension Add Value Machines Adhesive Weight Adhesion factor Air Bags Air Brake Air Dryer Air Suspension Alternator Analogue E-P Brake Control Angle Cock Articulation Aspect Asynchronous Motor Automatic Brake Automatic Coupler Automatic Fare Collection (AFC) Automatic Signalling Automatic_Train_Control_(ATC)? Automatic_Train_Operation_(ATO)? Automatic_Train_Protection_(ATP)? Automatic_Train_System_(ATS)? Auxiliary_Reservoir? Auxiliary Supply Axle Axlebox Axle Brush Axle Load Bar Balancing Speed Ballast Ballast Train Banjo Bank Banking Locomotive Battery Battery Locomotive Bi-Directional Signalling Blade Bleed Hole Brake Beam Brake Blending Brake Block Brake Cylinder Brake Frame Brake Pad Brake Pipe Brake Release Valve Brake Reservoir Brake Resistor Brake Rigging Brake Systems Brake,_Types_of? Brake Van Block Blocking Back BO-BO Body Bolster Bogie Bolster Boss Box Boxing Brake Breakaway Buckeye Coupler Buffer Buffer Beam Buffer Locking Buffer Stop Cab Signalling Caboose Calling-on Signal Capstan Cant Cant Rail Car Cardan Shaft Carline Carriage Catenary Centre Siding Centering Device Chair Check Rail Chopper Control Clasp Brakes Coach Coasting Coefficient of Friction Collector Shoe Commonwealth Bogie Compressor Conductor Conductor Rail Consist Converter Cripple Crossover Current Rail Cut Dead Heading Detection Detonators Diamond Crossing Diesel Locomotive Digital E-P Brake Control Dispatching DMU Double-Heading Double-Ending? Double Slip Down Line Dragging Detector Drain Cock Driver's Brake Valve Driver's Safety Device (DSD) Driving Trailer (DT) Driving Van Trailer (DVT) Dual Voltage-Locomotive (Train) Dynamic Braking Early Brake Systems ECP_Braking? Electro-Diesel Locomotive Electro-Pneumatic_Brake? Emergency Evacuation EMU EOT Device Equaliser Bar Bogie Empty/Load Lever Exhauster Facing Points Faregate Feed Valve Flange Greasing Flats Flat (1) Flat (2) Flange Floating Slab Track Foundation Brake Gear Four Foot Four Rail System Foot Iron Friction Brake Gangway Gap Gapped Governor Grade Grade Crossing Gradient Gradient Post Guard Guard Irons Graduated Release Handbrake H Frame Bogie Handbrake Handing Headstock Headway? [High Speed Train (HST)]? Horn (1) Horn (2) Horn (3) Hose Hostler Hot Box Hunting Impedance Bond Intercar Gangway Interchange Interlocking Intermodal Inverter Island Platform Isolation [[