Harrow and Wealdstone rail crash instance of rear-end collision
The Harrow and Wealdstone rail crash was a three-train collision at Harrow and Wealdstone station in Wealdstone, Middlesex (now Greater London) during the morning rush hour of 8 October 1952. The crash resulted in 112 deaths and 340 injuries, 88 of these being detained in hospital. It remains the worst peacetime rail crash in British history and the second deadliest overall after the Quintinshill rail disaster of 1915.
An overnight express train from Perth crashed into the rear of a local passenger train standing at a platform at the station. The wreckage blocked adjacent lines and was struck within seconds by a "double-headed" express train travelling north at 60 mph (100 km/h). The Ministry of Transport report on the crash found that the driver of the Perth train had passed a caution signal and two danger signals before colliding with the local train. The reason for this was never established, as both the driver and the fireman of the Perth train were killed in the accident.
The accident accelerated the introduction of the Automatic Warning System, and British Railways agreed to a five-year plan to install the system to give drivers an in-cab audible and visual warning when nearing a signal at caution, actuated by magnets between the rails.
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