Section 54(3) in The Delhi Metro Airport Express Line, General Rules, 2010
(3)In the event of a significant earthquake, the Traffic Controller shall instruct all trains to stop immediately and after such earthquake has subsided, the Traffic Controller may instruct each stranded train operator to proceed in Restricted Manual mode at walking speed after examining that the track is safe for train movement and free from obstruction up to the next station:Provided, that in such event, the normal operation of trains may be resumed if all the track and structures are examined and found to be in safe condition.
