Science, Discovery, Tech and Environment · 3 January 2026
Indian Railways commissions Kavach 4.0 on Gujarat’s Bajwa (Vadodara)–Ahmedabad Section
Exam-focused facts from the 3 January 2026 current affairs briefing.
Key facts
- Kavach 4.0 has been commissioned in Gujarat’s first Bajwa(Vadodara)–Ahmedabad section(96-km).
- The project covers 17 stations and includes robust infrastructure such as 23 towers, 20 Kavach buildings/huts, 192 km of optical fibre cable, and installation of 2,872 RFID tags.
- Kavach is an indigenously developed Automatic Train Protection (ATP) system of Indian Railways, designed to provide the highest level of operational safety.
- It is a highly technology-intensive system certified to Safety Integrity Level–4 (SIL-4), one of the highest safety standards in signalling systems.
- Kavach assists Loco Pilots by automatically applying brakes in situations where prescribed speed limits are exceeded or when safety is compromised.
- Key enhancements in Kavach 4.0 include improved location accuracy, better signal aspect information in large and complex station yards, station-to-station Kavach interface through optical fibre cable, and direct integration with existing electronic interlocking systems.