Information About Axle Counter,Track Structure Point & Crossing,Cable Schematics,CBTC Equipment,Overlaps,Core Plans,Earthing,ERTMS,Headway Calculation,Hot Axle Box Detectors,Interface Design,Level Crossing,Markers & boards,Bonding Plan Electrical Lockings,Route locking,Automatic Warning Systems AWS,Point Circuit,Equipment Treadle,Track Layout,Track Circuit Interrupters,Train Protection Warning System (TPWS),Slip Siding & Catch Siding.
Railway Planning for Outdoor Cable requirement The requirement of cable conduction is to be determined depending upon the circuits run from CT Room /Relay room function. Separate cable line wise and if necessary, function wise are laid from relay room /CT room to facilitate easy testing of cable without much distraction to the traffic. Cable […]
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Aspect Sequence Chart Railway Signalling Definitions: Aspect – any valid visual indication of a signal as displayed to the driver Aspect sequence – The order in which the aspects of successive signals are displayed to the driver Signal spacing – The distance between the signal or lineside sign displaying cautionary aspect and the signal or lineside sign at […]
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Block Working Systems of Railway Double line block instrument interface with the panel The entry of the train onto the block section is jointly controlled by the entry and exit points of the block section. The driver is authorized to proceed into block section by the signal controlling the entry into the section. This working […]
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Railway Signalling Equipment Treadle Presentation What is Treadle? A treadle is a mechanical or electrical device that detects that a train axle has passed a particular location. They are used where a track circuit requires re-inforcing with additional information about a train’s location, such as around an automatic level crossing, or in an annunciator circuit, that sounds a warning […]
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Railway Signalling Level Crossing Interlocking Circuits • Connected Relays: • LXLR: This relay picks up by proving all concerned ASR/OVSRs of signals in whose route/overlap the L.C. gate falls are free.(i.e., picked up) and UCRs are de-energized (i.e., route is not set). • LXRR: It proves that the gate is free to be opened for […]
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Railway Signalling Points control table Railway Signalling Points control table :- The route wise control table does not show the points controlled. Each point is controlled by the point track circuits for track locking so that if any train is moving over the points, the track locking will be effective and the points cannot be […]
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