![Ministry of Railways on X: "Did you Know? KAVACH, an indigenously developed Automatic Train Protection System conforming to SIL-4, is the highest level of safety certification. It is a communication-based train collision Ministry of Railways on X: "Did you Know? KAVACH, an indigenously developed Automatic Train Protection System conforming to SIL-4, is the highest level of safety certification. It is a communication-based train collision](https://pbs.twimg.com/media/FpU5VQbWAAAEcO4.jpg)
Ministry of Railways on X: "Did you Know? KAVACH, an indigenously developed Automatic Train Protection System conforming to SIL-4, is the highest level of safety certification. It is a communication-based train collision
![File:A schematic showing the basic architecture of a fixed block automatic train control (ATC) system File:A schematic showing the basic architecture of a fixed block automatic train control (ATC) system](https://upload.wikimedia.org/wikipedia/commons/6/65/A_schematic_showing_the_basic_architecture_of_a_fixed_block_automatic_train_control_%28ATC%29_system_with_its_three_main_components_-_ATP_%28Automatic_Train_Protection%29%2C_ATO_%28Automatic_Train_Operation%29_and_ATS_%28Automatic_Train_Supervision%29.png)
File:A schematic showing the basic architecture of a fixed block automatic train control (ATC) system
![Western Railway on X: "The indigenous Automatic Train Protection (ATP) system developed by Indian Railways is known as Kavach (TCAS: Train Collision Avoidance system). The system has been developed indigenously by RDSO Western Railway on X: "The indigenous Automatic Train Protection (ATP) system developed by Indian Railways is known as Kavach (TCAS: Train Collision Avoidance system). The system has been developed indigenously by RDSO](https://pbs.twimg.com/media/FM_wSDeUUAEs0G1.jpg:large)