Basic Concepts of Railway Signalling – Page 5

Railway Electrical Lockings

April 4, 2022June 7, 2022admin1 Comment

Railway Electrical Lockings Route locking: After a route is set (that is, the points in the route are operated to the position as required for the route), it is electrically locked before the signal is cleared. By this we mean the points in the route are electrically locked and they cannot be operated for any […]

Railways Gate Signal | Routing Indicator | Junction type route indicator | Multi lamp route indicator

April 4, 2022June 8, 2022admin3 Comments

Railways Gate Signal | Routing Indicator | Junction type route indicator | Multi lamp route indicator Gate Signal :- The Gate stop signal shall be provided with „G‟ marker. Letter „G‟ in black on a yellow circular disc. A semi-automatic stop signal interlocked with a level-crossing gate shall be provided with „G‟ marker disc and […]

Types of Railway Signals

March 20, 2022June 7, 2022admin3 Comments

Types of Signals Types of Signals :- Signal is a medium to convey a particular pre-determined meaning in non-verbal form. Multiple Aspect Color Light Signal (MACLS): Multiple means more than 2 indications .They may have 3 or 4 different aspects or indications to be given to the driver. These signals have longer range of […]

Railway Salient features of Relay based Interlocking

March 4, 2022June 7, 2022adminLeave a Comment

Railway Salient features of Relay based Interlocking Relay Interlocking is a system of implementing principles of interlocking for safe train operations at a Station with the help of electrical circuits wired through electro-magnetic relay contacts and coils. Difference between Route Setting Type and Non-Route Setting Type In the Route setting type popularly known as RRI […]

Railway Signals Location Home Signal Distant Signal Routing Signal Starter Signal Advanced Starter

March 4, 2022June 7, 2022admin1 Comment

Railway Signals Location Home Signal Distant Signal Routing Signal Starter Signal Advanced Starter Location of Railway Signals Home Signal: On single line, shall be placed at not less than 300 Mts. in rear of the first facing point. On double line may be located at a distance of not less than 180 Mts. in rear […]

Railway Dead approach locking|Back locking or route locking

March 4, 2022June 7, 2022admin3 Comments

Railway Dead approach locking|Back locking or route locking Dead approach locking: It is seen that for providing approach locking, a track circuit for a length of 1,2kms. Need to be provided. Provision of such a long track circuit for the purpose of approach locking is a costly proposition. Therefore, the approach locking is provided without the […]