On September 19th 1997, seven commuters were killed when a high-speed passenger train collided with a freight train in Southall, west of London. The BBC documentary film, At Southall, unravels the science of the eight-and-a-half seconds of the crash to discover why some passengers died, while others apparently more at risk did not.
The causative failure was that a high speed train was allowed to run normally, despite the on-board safety system having failed. There was thus no warning when human error led to the train passing a signal at danger.
With a major train crash now predicted to happen every two years, what, if any, choices can you make to improve your chances of surviving a collision?
At Southall is part of the BBC series Collision Course, which looks at two major events and gives an insight into science, psychology and health and safety.
At Southall
Collision Course - Episode 1
DVD
Duration 30 minutes
Licensed for use in education and training
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