2. • KAVACH, an indigenous Automatic Train Protection (ATP)
system to prevent accidents caused due to
1. Signal Passing at Danger(SPAD)
2. Loss of Speed Supervision and
3. Train Collisions
by automatic application of brakes in case of Loco Pilot fails to
do so.
• Inherent feature of Cab Signalling is useful during normal
running as well as in foggy weather.
• KAVACH system is designed to meet the safe operation of
trains.
• KAVACH is a SIL–4 certified system which can be interfaced
with existing interlocking including relay based interlocking.
3. • KAVACH Safety Features
o Prevention of signal passing at danger (SPAD)
o Cab Signalling, loop line speed control
o Approaching signal aspect and movement authority are displayed to the
loco pilot.
o Prevention of over-speed: section speed, train speed, Permanent Speed
Restrictions (PSR)
o Protection of roll back and reverse movements
o Prevention of side-collision in block section
o Prevention of head-on and rear end collisions
o LC gate automatic warning
o SoS messages
o Computation of train length
o Shunt limits validation
o Centralized live monitoring of train movements in Network Monitoring
System (NMS).
