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 Signalling Plan For any station whether a wayside or a junction, the Engineering department prepares a plan depicting all the lines, points, Level Crossings if any, Foot-over Bridge (FOB), Sub-way if any coming within the station section, Bridges if any, gradient etc. This plan is called as the “P-way Plan”. This plan is studied […]
Continue Reading
Metro Rail Basic Signalling Concepts Control over movement of Trains & Development of signals. 1. This mode has its own inherent problems. 2. Trains cannot be steered away as in the case of other transports. 3. They are required to follow one another in the same direction on track, as otherwise for every vehicle separate […]
Continue ReadingRailway Signalling alphabets Abbreviations Equipment Signalling Equipment Meaning of alphabets used to denote Signalling Information A – Approach, Automatic. Near endpoint. B – Block positive energy, Far-end point. C – CONTACT. Center, Check. D – CLEAR, GREEN E – EARTH, LAMP F – FRONT, FUSE G – SIGNAL, GATE H – CAUTION YELLOW. HH – […]
Continue Reading
Railways Subsidiary Signals | Shunt signal | Calling-on signal Subsidiary Signals Signals are used for reception of trains in to a station and despatch of trains out of station. Signals used for movement of trains with in the station section at restricted speed and for special purpose are called Subsidiary signals. In MACL signalling Shunt […]
Continue Reading
Power Supply Railway Signalling Lightning Protection Earthing What is a Power Supply? 1. Electrical supply used for Signaling purposes. Different types of equipment need different voltages. 2. Supply is extended by the Electrical department based on the requirement of signaling. 3. Signalling has to provide the details of locations and maximum load at each location. 4. […]
Continue Reading
Railway Signalling Speed Restrictions – Presentation DEFINITIONS PERMISSIBLE SPEED – The authorized maximum speed over a section of line. TEMPORARY SPEED RESTRICTION – A speed, less than the permissible speed, applied for a pre-planned period not normally exceeding 6 months. EMERGENCY SPEED RESTRICTION – A speed restriction not shown in the Weekly operating Notice (WON), or […]
Continue Reading