Odisha train accident: Driver error ruled out, top railway officials indicate a 'signalling interference'

The railways on Sunday virtually ruled out driver error and system malfunction indicating a possible signalling interference and hinting at sabotage and tampering of the electronic interlocking system behind the triple train accident that claimed 275 lives in OdishaRailway Minister Ashwini Vaishnaw has sought a CBI enquiry into the accident However officials said the inquiry by the commissioner of railway safety CRS would continueVaishnaw said that the root cause of the accident and the people responsible for the criminal act have been identifiedIt happened due to a change made in the electronic interlocking and point machine he told reporters at the site of Fridays accident in Balasore districtHere in Delhi top railway officials indicated a signalling interferenceThere is probability of some kind of signalling interferencewhether it was manual or incidental wear and tear related maintenance failure or weather related will come out in the CRS inquiry Jaya Verma Sinha Member of Operations and Business Development Railway Board saidExplaining how the point machine and the interlocking system function she said that the system is error proof and fail safe but did not rule out the possibility of outside interventionIt is called a fail safe system so it means that even if it fails all the signals will turn red and all train operations will stop Now as the minister said there was a problem with the signalling system It could be that someone has done some digging without seeing the cables Running of any machine is prone to failures Sinha saidWhile Sinha refused to comment on particular findings she said that no defect was found in the electronic interlocking system but did not even rule out negligenceAlso readKey officials explain how the Odisha train accident might have occurredA senior railway official who did not want to be identified said this kind of tinkering with the logic of the AIbased electronic interlocking system can only be intentional and ruled out any malfunction in the systemIt could be a case of tampering or sabotage from within or from outside We have not ruled anything out the senior railway official saidSinha said that even with the anticollision technology Kavach this accident could not have been averted due to the speed of the Coromandel Express and its distance from the stationary goods trainThe crash involving BengaluruHowrah Superfast Express and ShalimarChennai Central Coromandel Express and a goods train occurred around 7 PM on Friday near the Bahanaga Bazar station in Balasore about 250 km south of Kolkata and 170 km north of BhubaneswarAround 275 people were killed and around 1175 injured in the accidentOfficials on Sunday gave the driver of the Coromandel Express a clean chit by stating that he had the green signal to move forward and he was not overspeedingA preliminary report from the ground accessed by PTI on Friday stated that the Coromandel Express had entered the loop line at the station on which an iron oreladen goods train was parkedIt also indicated that a tampering could have occurred stating that the signal was given and taken off for the up main line for train number 12841 Coromandel Express the train entered the loop line dashed the goods train and derailed In the meantime train number 12864 passed through the down main line and two of its coaches derailed and capsizedExplaining how the two components mentioned by the minister are key to train operations Sandeep Mathur Principal Executive Director of Signalling Railway Board said that these two work in coordination to show the driver whether the track is clear to move forwardSignal is interlocked in such a manner that it will show if the line ahead is occupied or not It will also be known whether the point is taking a train straight or towards loop lineWhen the point shows straight and the track ahead is not occupied then the signal is green and if the point is taking the train on loop and track is clear then signal is yellow and the route is shown of a different direction he saidHe said that the interlocking system is a safe way to guide a train out of a stationA point machine is a vital device for railway signalling for quick operation and locking of point switches and plays an important role in the safe running of trains Failure of these machines severely affects train movementSinha said that the direction route and signal were set for the Coromandel ExpressGreen signal means that in every way the driver knows that his path ahead is clear and he can go forward with his permitted maximum speed The permitted speed at this section was 130 kmph and he was running his train at 128 kmph which we have confirmed from loco logs she saidThe BengaluruHowrah Superfast Express train was running at a speed of 126 kmphIn both the trains there was no question of overspeeding Preliminary finding has found that there is a signalling issue she saidOnly one train was involved in the accident it was the Coromandel Express The Coromandel Express crashed with the goods train and its coaches went on top of the goods train It was an iron ore train a heavy train therefore entire impact of the collision was on the train she saidIt was a fraction of a second that last two coaches of the BengaluruHowrah train crashed with the coaches of the Coromandel Express she saidMeanwhile the Commissioner of Railway Safety CRS has completed his investigation at the site He is expected to meet witnesses as part of his inquiry on Monday and TuesdayCommissioner of Railway Safety South Eastern Circle will hold a statutory enquiry from 0900 hrs of 05062023 Monday and 06062023 Tuesday in the South Institute Kharagpur in connection with the derailment of 12841 ShalimarChennai Central Coromandal Express amp 12864 SMVT BengaluruHowrah Superfast Express at Bahanaga Bazar station near Balasore on 02062023Rail users local public and other bodies may be present at the given time and place and may depose before the commission regarding any information related to the accident case the South Eastern Railway said in a statement