Section 273(3) in The Dedicated Freight Corridor Railway General Rules, 2018
(3)[ Each level crossing gate shall be provided with approach warning and approach track locking systems. As soon as the train reaches a pre-determined point on any of the lines an alarm in accordance with special instructions will sound in order to assist Gateman regulate road traffic and observe passing train. Further, as soon as the train reaches a predetermined point, if the boom is already closed, track locking of boom shall prevent opening of the gate until whole of the train has passed beyond the level crossing gate and subsequently, the gate signal shall assume 'OFF' aspect] [Substituted by Notification No. G.S.R. 822(E), dated 6.11.2019 (w.e.f. 10.8.2018).].
