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The Moorgate tube crash occurred at 8.46am on February 28, 1975 in London, England. A southbound Northern Line tube train crashed into the tunnel end beyond the platform at Moorgate station. Forty-three people were killed at the scene and several more subsequently died from severe injuries, in what was the greatest loss of life on the Underground in peacetime. The cause of the incident was never conclusively determined.

The crash had two further consequences. Firstly, the southern end of the Northern City Line platforms (where the crash happened) was extensively rebuilt. Secondly, automatic systems for stopping trains at dead-ends was introduced into all dead-ends on the tube, regardless of whether the driver gives instruction to halt a train. These systems are known as Moorgate control.

Details of the incident

The train was on the 8:39am run on the Northern City Line service on short, 7-minute round trips between Drayton Park and Moorgate, terminating at platform nine of Moorgate station. At that time, plans were already afoot for the service, previously known as the Great Northern & City, to be transferred to British Rail (it is now operated by WAGN).

Instead of stopping on arrival, the train appeared to accelerate, taking the crossover at about 35 mph (56 km/h). At the end of the platform was a 66 ft (20 m) long overrun tunnel with a red stop-lamp, then a sand drag, and finally a single hydraulic buffer in front of a brick wall. The sand drag slowed the train but it smashed into the buffer at about 40 mph and then into the wall. The first emergency call was received at 08.53am.

The incident would have not been so bad had the train been in a tube-sized tunnel, but the overrun tunnel was originally built to house mainline units and was 16 ft (4.9 m) high. The smaller diameter of the tube train meant that the second car in the set rode up above the trailing end of the driving car, and landed on top of it. The third car also split asunder lengthwise and rode over the end of the second car. The driving car suffered the most damage, buckling at two points into a V shape, crushed between the wall and the weight of the rest of its train piling up behind it.

Investigation into the cause

The cause of the crash was never satisfactorily determined. The 56 year old driver, Leslie Newson, had worked for London Underground since 1969, had been in good health and took no alcohol or drugs. Police investigation showed that he had no reason to be suicidal and in fact had £300 in his pocket, which he was intending to use to buy a car for his daughter after the end of his shift.

When investigated, Newson was shown to have still been holding the dead man's switch, a device that immediately applies the brakes when released. Not only had he not even put his hands up to protect his face from the impact, but he had actually increased the speed of the train.

The autopsy found no evidence of a medical problem such as a stroke or heart attack that could have incapacitated Newson; he did not appear to have taken alcohol, although post mortem testing for this was hampered by the 4½ days it took to retrieve his body from the wreckage. It has been suggested on a TV documentary that Newson was in fact temporarily paralysed by a rare kind of brain seizure; on the other hand, railway writer Piers Connor, himself a former driver who knew Newson slightly, has suggested that his attention simply wandered from his driving at exactly the wrong moment. And of course suicide, while unlikely, cannot be ruled out.

External links

• BBC News account of the 1975 crash
• The Railways Archive web site has a scanned copy of the official accident report in PDF. This direct link seems to work sometimes.

See also

• Croome, D. & Jackson, A. Rails Through The Clay — A History Of London's Tube Railways (2nd. ed. 1993), London, Capital Transport Publishing.

• British railway accidents
• History of London
• London Underground