Published on: October 8, 2025

KAVACH TRAIN PROTECTION SYSTEM

KAVACH TRAIN PROTECTION SYSTEM

NEWS

  • The South Western Railway (SWR) has initiated the phased implementation of Kavach, India’s indigenous Automatic Train Protection (ATP)
  • Developed by Research Design and Standards Organisation (RDSO) in collaboration with Indian industry partners.
  • Aims to enhance railway safety and prevent accidents caused by human error.

HIGHLIGHTS

Project Details

  • Total coverage: 3,692 route kilometers (RKM).
  • Implementation in two phases:
    • Phase 1: 1,568 RKM | Cost: ₹628.63 crore.
    • Phase 2: Remaining 2,124 RKM.
  • Loco Upgradation:
    • 299 locomotives under SWR to be equipped with Loco Kavach.
    • Project estimate currently under vetting by the Accounts Department.

Technical Features

  • Safety Integrity Level-4 (SIL-4) – the highest safety certification standard in railway operations.
  • Functions as a Traffic Collision Avoidance System (TCAS).
  • Core functionalities:
    • Prevents trains from crossing red signals (signals at danger).
    • Automatic braking if loco pilot fails to follow speed limits.
    • Collision prevention between two Kavach-equipped trains.
    • Automatic relay of SoS messages during emergencies.
    • Centralised live monitoring through the Network Monitor System.
  • Utilises RFID tags and radio transmission towers for communication between trains and stations.
  • Additional safety aids:
    • Real-time signal and speed display in the driver’s cabin.
    • Automatic hooter activation near level crossings.
    • Effective in low-visibility conditions like fog.

Significance

  • Marks a major step in railway modernization and safety automation.
  • Reduces human dependency in train operations.
  • Aligns with ‘Atmanirbhar Bharat’ goals through indigenous technology development.
  • Expected to serve as a national benchmark for expanding safety systems across Indian Railways.