Deploying Ultra-Modern Signaling System in Railways (Download PDF)


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The railways has installed its first ultra-modern, computer-based signaling system to ensure faster movement of around 256 trains on saturated routes. The state-of-the-art system was commissioned at Khurja junction, enabling faster train movement between the Ghaziabad-Kanpur sections.

Map of Khurja Junction Location

Map of Khurja Junction Location

Map of Khurja Junction Location

Modules for Modern Signaling Systems

  • Electronic interelockings

  • Automatic train protection system

  • Train detection device

  • Centralized traffic control

  • Train management system

What Are Electronic Interlocking?

  • Electronic Interlockings with centralized operation of points and signals eliminate human failure and replace old mechanical systems.

  • These systems have been provided at 1256 stations over Indian Railways upto 30.11. 2017.

What is Automatic Train Protection (ATP) System?

  • ATP System based on European Train Control System (ETCS) technology mitigates safety risk of accidents and collisions due to loco pilot’s error of Signal Passing at Danger or over speeding.

  • It is a proven European train protection technology and deployed extensively on World Railways.

  • European Train Control system has been operationalized on 342 Railway KMs on Indian Railways.

What is TCAS?

  • Train Collision Avoidance System (TCAS) is one of the ATP system.

  • TCAS is a developmental project being taken on a limited section (250 km) on South Central Railway.

  • Operational deployment of TCAS on Railways on Absolute Block Signaling sections will be taken-up after successful conclusion of the extended field trials and safety certification of system by Independent Safety Assessor (ISA).

What is Train Detection Device (TDD)?

TDD is used for

  • To ensure complete arrival of train before granting line clear

  • To detect presence of train in a station, axle counters have been provided.

What is CTC?

  • A Centralized Traffic Control (CTC) with Electronic Interlocking and automatic signaling system is being set up on the Ghaziabad-Kanpur route - one of the busiest sections of Indian Railways.

  • This is 410 km long electrified route dealing with 200 trains per day.

  • Its Central Traffic Control Centre is established at TUNDLA station.

How Will CTC Help?

  • CTC system will help in real time monitoring and better management of trains.

  • It provides for remote operation of signals from the centralized traffic control office.

  • The CTC system has been made operational for seven stations as a part of pilot project.

What is TMS?

  • Train Management System helps in real-time monitoring of trains in the control room.

  • The arrival status of local trains is displayed on indicators installed on platforms in the form of a countdown timer (in minutes)

  • The train’s arrival on the platform is accompanied by automatic announcements on platforms.

Where is TMs Being Used?

  • TMS has been provided on Mumbai suburban section of Western and Central Railway.

  • On Western Railway, it covers section from Churchgate to Virar extending over 60 km covering 28 stations

  • On Central Railway, it covers suburban section from CST Mumbai to Kalyan extending over 54 km covering 26 stations.

  • TMS work is also nearing completion at Howrah on Eastern Railway.

- Published/Last Modified on: February 15, 2018


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