HomeGovernanceAccident InvestigationReport on fatal accident at Waterloo Underground station published

Report on fatal accident at Waterloo Underground station published


The Rail Accident Investigation Branch (RAIB) has released its report into a fatal accident at Waterloo Underground station, London, that took place on 26 May 2020.

A passenger fell into the gap between the northbound Bakerloo line platform and the train from which he had just alighted at about 10:10 on 26 May 2020.

At that point, a large gap existed between the train and the platform because of the track curvature. The passenger was unable to free himself and the train departed with the passenger still in the gap, crushing him as it moved off. He remained motionless on the track and was subsequently hit by a second train that entered the station.

The accident occurred when there were no staff or other members of public nearby to assist the fallen passenger. Train despatch on the Bakerloo line platforms at Waterloo was undertaken by the train operator (driver) using a closed-circuit television system to view the side of the train alongside the platform. With only his head and arm above platform level, the passenger was difficult to detect on the despatch monitors and was not seen by the train operator. The operator of the following train was unaware of the passenger because their attention was focused on the platform and the train’s stopping point, until after the train had struck the passenger.

This reconstruction shows just how hard it would have been to spot the passenger involved.

The investigation found that London Underground’s risk assessment processes did not enable the identification and detailed assessment of all factors that contributed to higher platform-train interface (PTI) risk at certain platforms. Consequently, although London Underground had implemented some location-specific mitigation measures at the PTI, it had not fully quantified the contribution of curved platforms to the overall PTI risk, and so was unable to fully assess the potential benefits of additional mitigation at these locations.

RAIB also found that the model used by London Underground to quantify system risk makes no allowance for non-fatal injuries, and so understates the risk of harm to passengers at the PTI and presents an incomplete picture of system risk, with the potential to affect London Underground’s safety decision making.


Following its investigation, RAIB has made three recommendations to London Underground.

The first relates to the need to recognise and assess location-specific risks so they can be properly managed.

The second deals with the need to ensure that safety management processes include the ongoing evaluation of existing safety measures at stations, and provide periodic risk assessment for individual locations at intervals which reflect the level of risk present.

The third recommendation relates to the need for effective delivery of actions proposed by internal investigation recommendations.


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