Section 238(2) in The Dedicated Freight Corridor Railway General Rules, 2018
(2)Whenever a railway servant deputed to patrol the line notices any condition likely to affect the safety of a train or otherwise apprehends danger, he shall initiate `Railway Emergency Call' where mobile train radio communication system is provided and place an amber flasher signal in a prominent position to warn the loco pilots of approaching trains. In case trains are expected to approach from two different directions, two of such flasher signals shall be fixed showing towards both of the directions. In case, he does not have 'Cab Radio or operational radio of mobile train radio communication system; he shall immediately inform the Station Master of the nearest station on any other approved means of communication to initiate Railway Emergency Call where mobile train radio communication system is provided . After securing the obstruction, he shall place himself to show danger hand signal to any approaching train. Ground equipment to trigger on board safety device, where implemented, shall also be fixed by such railway servant;When either the `mobile train radio communication' system is not available or it is yet to be integrated with a similar facility on foreign railway, protection of obstruction on sections where lines of different railway run in parallel, shall be undertaken in accordance with Special Instructions.
