Why in news?
Kavach 4.0 is the latest version of Indian Railways’ indigenous Automatic Train Protection (ATP) system, designed to prevent train collisions and control overspeeding. As of January 2026, it has been commissioned across more than 1,300 route kilometres in high-density corridors, marking a major leap in passenger safety.
About Kavach 4.0
- Indigenous ATP system developed by Indian Railways.
- Uses microprocessors, GPS, and radio communication to monitor train movement.
- Automatically applies brakes to prevent collisions and overspeeding.
- Ensures safe and reliable train operations even in adverse conditions.
Key Features of Kavach 4.0
- Collision Avoidance: Prevents head-on and rear-end collisions.
- Speed Regulation: Automatically enforces speed limits.
- Signal Protection: Ensures trains stop at red signals.
- Fail-safe Design: Works even if drivers miss signals or lose visibility in fog.
- Scalability: Designed for deployment across India’s busiest routes.
Importance
- Passenger Safety: Reduces risk of accidents on congested routes.
- Operational Efficiency: Improves punctuality and reliability.
- Indigenous Technology: Reduces dependence on foreign ATP systems.
- Future Expansion: Indian Railways plans to extend Kavach across thousands of kilometres, prioritizing high-density corridors like Delhi–Mumbai and Delhi–Howrah.
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