Southern Railway (SR) has initiated a major project. The aim is to enhance train safety in the Chennai Division. This will be done by implementing the KAVACH (Train Collision Avoidance System). This project will cover three key sections. They are Chennai Central to Gudur Junction, Chennai Central to Arakkonam Junction, and Arakkonam Junction to Renigunta Junction. The total span is 271 kilometers.
Project Details
The project will be carried out through an Engineering, Procurement, and Construction (EPC) contract. It has an estimated cost of Rs. 125 crore and is expected to be completed within 730 days. The KAVACH system is designed to prevent train collisions. It continuously monitors train speeds. It also ensures compliance with track speed restrictions and signal aspects.
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Why KAVACH is Important
The KAVACH system, developed by RDSO, is an indigenous Automatic Train Protection (ATP) system tailored for Indian Railways. It reduces the burden on loco pilots by providing real-time monitoring and control, thereby improving overall safety and security. This initiative also supports the Make in India campaign by substituting imported systems with locally developed technology.
Scope of Work
The project includes the installation and commissioning of various components. These components are station TCAS, LCTCAS, LOCO TCAS, and RIU. It also involves associated signaling works across the specified 271 km sections of the Chennai Division.
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Goals of the Project
- Improved Safety & Security: The primary aim is to enhance the safety and security of train operations in the region.
- Improved Assets & Reliability: By implementing KAVACH, Southern Railway aims to increase the reliability and efficiency of its assets.
Salient Features of KAVACH
RDSO has developed KAVACH, an indigenous Automatic Train Protection (ATP) system with cab signalling features. It is useful for high speeds. It also works well in foggy weather.
- Prevention of SPAD (Signal Passed at Danger).
- Cab signalling and loop line speed control.
- Prevention of overspeeding: section speed, train speed, permanent speed restriction (PSR).
- Protection against rollback and reverse movements.
- Prevention of side collisions in block sections.
- Prevention of head-on and rear-end collisions.
- Automatic warning at level crossings (LC gate).
- “Save Our Souls” (SOS) messages.
- Computation of train length.
- Centralized live monitoring of train movements via the Networking Management System (NMS).
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Why We Need KAVACH
Major Safety Concerns in Indian Railways:
- Cases of Signal Passing at Danger (SPAD).
- The signal visibility period for loco pilots reduces sharply as train speed increases.
- Little assistance is provided to drivers on board the locomotive about signal information ahead.
- Train movement in foggy weather, especially in Northern India.
- Incidents of train collisions.
This significant upgrade is a step towards ensuring safer and more reliable train travel in the Southern Railway Zone. It benefits both passengers and railway operations.
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