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Kavach 4.0 Upgrade Strengthens India’s Railway Safety

Kavach 4.0 Upgrade Strengthens India’s Railway Safety
Knowledge Nugget | How KAVACH protects India’s trains—and what other countries do? · indianexpress.com

Kavach is a safety system made for Indian trains.

It helps trains avoid crashing into each other.

If a train passes a red signal or travels too fast, the system can apply the brakes automatically.

It also tells the driver about signals and how far the train may safely travel.

The new Kavach 4.0 can find a train’s location more accurately.

It can also connect stations and work with existing railway signalling equipment.

Other countries use systems such as ETCS in Europe, ATC in Japan and PTC in the United States.

These systems use technology to make train journeys safer.

Key facts

System
Kavach is India’s Automatic Train Protection system, also known as the Train Collision Avoidance System.
Commissioning coverage
Kavach Version 4.0 was commissioned over 108 route kilometres.
Earlier deployment
Kavach Version 3.2 had been deployed over 1,465 route kilometres on the South Central Railway.
Safety standard
Kavach complies with SIL-4, described in the article as the highest level of safety integrity globally.
Key protections
The system addresses Signal Passing at Danger, head-on and rear-end collision risks, overspeeding and low-visibility conditions.
Version 4.0 improvements
Improvements include more accurate positioning, better signal identification, optical-fibre connectivity and direct electronic-interlocking interfaces.
International comparisons
Europe uses ETCS, Japan uses ATC and the United States uses Positive Train Control implementations.

Sources

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