Screen Reader Access Skip to Main Content Font Size   Increase Font size Normal Font Decrease Font size
Indian Railway main logo
Search :
View Content in Hindi
National Emblem of India

About Us

Hajipur H.Q.


News Updates


Contact Us

Supplier Information

Bookmark Mail this page Print this page
Signal & Telecom


                           Role of the Signal & Telecommunication department


Train Operations

ØSignalling Systems for Safe and smooth train operations.

ØOptimum utilization of line capacity.

ØTrain Warning and Protection systems.



Providing telecommunication infrastructure for :

ØControl Communication for Efficient operation of trains.

ØPassenger Reservation System (PRS)

ØUnreserved Ticketing System (UTS)

ØFreight Operation Information System (FOIS)

ØCrew Management System (CMS)

ØCoaching Operating Information System (COIS)

ØManagement of EDP Network over ECR

ØManagement of Railways Information Network (RAILNET)

ØRailways telephones, networked with all India Railway network.

Passenger Amenities


Signal & Telecom Department provides various passengers amenities for the benefit of travelling public:


ØPublic Address System is provided at various stations to announce the arrival & departure of trains and other information required by traveling passengers.

ØTrain Arrival Departure Information is provided through Rail Sampark Centralized Service 139.

ØTrain Indication Boards are provided for indicating the train timing and platform numbers at important Railway stations.    

                                                   Elements of Safety in Train Operation

Track Circuiting

Track circuiting is a basic safety device used in signalling systems. It monitors occupancy of a section of track and prevents clearance of signal in the event of the track section being occupied by another train. This is a fail-safe device, which in the condition of its failure prevents the signals to be cleared.

Axle counters

It is another important safety device used for detecting presence of train in a track section. This device counts the number of train axles entering and exiting through a track section and controls the associated signal.

Block Working

It is an arrangement to control the entry and exit of train in a section called block section between any two adjacent stations. This maintains space interval between two following trains. It provides safety by preventing the second train to be sent into the section between the stations unless and until the previous train has cleared the section.

Driver to Guard communication

Driver to Guard communication has been provided for running trains using VHF walkie-talkie sets, for better co-ordination in controlling of the train.


Interlocking is a mechanism to check the route the train is going to traverse before clearing the signal and to prevent the clearing of signal when it is unsafe for the movement. It eliminates human error and ensures safety in train operations. Two types of interlocking arrangements are in vogue depending on the size of the station yard.

Panel Interlocking

Panel interlocking is provided for smaller yards. It is a signalling system, which assures the best standard of safety and eliminates the accidents arising out of human errors.

Route Relay Interlocking

Route Relay Interlocking is provided at major junctions and yards where large numbers of train movements are required.

Safety at Level Crossing Gates

All the level crossing gates in the station area and other important gates in the route are controlled by the signals. These gates are called interlocked gates and provide best safety for the road users. Provision of telephone communication at manned level crossing gates is a safety tool to ensure closure and opening of gates at appropriate time. On this railway all the manned level crossing gates have already been provided with telephone communication facility with the controlling stations.


Source : East Central Railways / Indian Railways Portal CMS Team Last Reviewed : 18-02-2023  

  Admin Login | Site Map | Contact Us | RTI | Disclaimer | Terms & Conditions | Privacy Policy Valid CSS! Valid XHTML 1.0 Strict

© 2016  All Rights Reserved.

This is the Portal of Indian Railways, developed with an objective to enable a single window access to information and services being provided by the various Indian Railways entities. The content in this Portal is the result of a collaborative effort of various Indian Railways Entities and Departments Maintained by CRIS, Ministry of Railways, Government of India.