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? [[