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KAVACH System of Indian Railways

KAVACH System- Relevance for UPSC Exam

  • GS Paper 2: Governance, Administration and Challenges- Government policies and interventions for development in various sectors and issues arising out of their design and implementation.

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KAVACH System in news

  • Recently, the Union Minister of Railways inspected the trial of the ‘Kavach’ working system between Gullaguda-Chitgidda Railway stations.
    • In his presence, an extensive trial of the ‘Kavach’ system was conducted.
  • During the trial, a Head-on-collision situation was created as both the locomotives were moving towards each other.
    • The ‘Kavach’ system initiated the automatic braking system and halted the locomotives 380 metres apart.

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What is KAVACH System?

  • About: The KAVACH is an indigenously developed ATP to achieve the corporate objective of safety in train operations across Indian Railways.
    • The KAVACH system is a state-of-the-art electronic system of Safety Integrity Level – 4 standards.
  • Design and Development: The KAVACH system is designed and developed by Research Design and Standards Organisation (RDSO) in collaboration with the Indian industry.
    • KAVACH system’s trials were facilitated by South Central Railway.
  • Objective: KAVACH is meant to provide protection by preventing trains to pass the signal at Danger (Red) and avoid a collision.
    • KAVACH activates the train braking system automatically if the driver fails to control the train as per the speed restrictions.
    • In addition, it prevents collision between two Locomotives equipped with a functional KAVACH system.
  • Association Significance:
    • ‘KAVACH’ is one of the cheapest, Safety Integrity Level 4 (SIL-4) certified technologies with the probability of error is 1 in 10,000 years.
    • Also, it opens avenues of export of this indigenous technology for Railways.
  • Target: As a part of Atmanirbhar Bharat, 2,000 km of the network will be brought under Kavach for safety and capacity augmentation in 2022-23.
    • Around 34,000 Kms of the network will be brought under Kavach.

CAG Report on Indian Railways

भारतीय रेलवे की कवच ​​प्रणाली

Key Features of KAVACH system

  • Prevention of Signal Passing at Danger (SPAD)
  • Continuous update of Movement Authority with a display of signal aspects in Driver Machine Interface (DMI) / Loco Pilot operation cum Indication Panel (LPOCIP)
  • Automatic Braking for Prevention of Over Speeding
  • Auto Whistling while approaching Level Crossing Gates
  • Prevention of collision between two Locomotives equipped with functional KAVACH.
  • SoS Messages during emergency situations
  • Centralized live monitoring of Train movements through the Network Monitor System.


Parvatmala Scheme: National Ropeways Development Programme

Parvatmala Scheme: National Ropeways Development Programme

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