rail-interlock.com
Rail Signals and Interlocking
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RAIL-INTERLOCK KNOWLEDGE TREE
Welcome
Tree of Knowledge
Interlocking
Electrical/Pneumatic Methods
Electronic/Solid State Methods
Mechanical Methods
The Need - History
Railway Traffic Control
Signal Control
Lever Frames
Signalling
Cab Signalling
Hand Signalling
Line-side signals
Absolute Signal
Cautioning signal
Permissive Signal
Route Signal
Speed Signal
Stop Signal
Light Signals
Colour Light Signals
Colour Position Light Signals
Position Light Signals
Mechanical Signals
Fixed Boards
Semaphores
Quadrants and Orientation
Terminology
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