Stratford tube crash
Encyclopedia
The Stratford tube crash occurred on 8 April 1953, on the Central Line
Central Line
The Central line is a London Underground line, coloured red on the tube map. It is a deep-level "tube" line, running east-west across London, and, at , has the greatest total length of track of any line on the Underground. Of the 49 stations served, 20 are below ground...

 of the London Underground
London Underground
The London Underground is a rapid transit system serving a large part of Greater London and some parts of Buckinghamshire, Hertfordshire and Essex in England...

. 12 people were killed as a result of a rear-end collision
Rear-end collision
A rear-end collision is a traffic accident wherein a vehicle crashes into the vehicle in front of it, usually caused by tailgating or panic stops...

 in a tunnel
Tunnel
A tunnel is an underground passageway, completely enclosed except for openings for egress, commonly at each end.A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal. Some tunnels are aqueducts to supply water for consumption or for hydroelectric stations or are sewers...

, caused by driver
Motorman
A motorman is the person who operates an electrified trolley car, tram, light rail, or rapid transit train.The term refers to the person who is in charge of the motor in the same sense as a railroad engineer is in charge of the engine. The term was gender-neutral...

 error after a signal
Railway signal
A signal is a mechanical or electrical device erected beside a railway line to pass information relating to the state of the line ahead to train/engine drivers. The driver interprets the signal's indication and acts accordingly...

 failure.

A signal (A491) in the tunnel between Stratford and Leyton had been damaged, and this and the preceding signal (A489) were showing a permanent red aspect. Trains were being worked slowly past the failed signals under the "Stop and Proceed" rule, under which trains should proceed with extreme caution, typically less than 10 mph. However, one train collided with the back of another which was waiting at signal A491, and the first and second coaches of the colliding train were partially telescoped
Telescoping (railway)
In a railway accident, telescoping occurs when the underframe of one vehicle overrides that of another, and smashes through the second vehicle's body...

. The Inspecting Officer considered that the extent of the damage suggested the speed was in the region of 15-20 mph, and when the driver had passed signal A489, he had simply coasted down the steep down gradient, not expecting to find another train before the next signal. The driver claimed to have been travelling slowly and that his vision had been obscured by a cloud of dust, but it was felt his memory could have been affected by concussion.

This was the worst accident involving trains on the London Underground
London Underground
The London Underground is a rapid transit system serving a large part of Greater London and some parts of Buckinghamshire, Hertfordshire and Essex in England...

 until the Moorgate tube crash
Moorgate tube crash
The Moorgate tube crash was a railway disaster on the London Underground, which occurred on 28 February 1975 at 08.46 am.A southbound train on the Northern Line crashed into the tunnel end beyond the platform at Moorgate station...

in 1975.

A very similar accident at exactly the same location, but with much less serious consequences, had occurred in 1946, before the line was open for public traffic; one railwayman was killed.
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