23.01.13
‘Anti-terrorist’ carriages under development
‘Blast-resistant’ carriages have been developed by researchers at Newcastle University, with the aim of reducing the threat and devastation of potential terrorist attacks.
The Secure Metro project team used EU funding to design new train and metro vehicles at the University’s NewRail research centre, led by Conor O’Neill.
The team focused on containing the impact of a blast and reducing debris. They analysed carriages involved in the London Underground bombings and completed a controlled full-scale test explosion. Footage of the test was then slowed down to examine the progression of the blast wave and how interior furnishings reacted to the blast force.
Key modifications include tethering down heavy equipment using retention wire, plastic coatings on windows and replacing heavier structures with lighter and energy-absorbing materials.
The new technology has been developed with the aim of incorporating it into European and national standards and regulations.
O’Neill, based in the School of Mechanical and Systems Engineering at Newcastle University, explained: “The Madrid bombings in 2004 and the 7/7 attack in London the year after highlighted how vulnerable our trains are to attack – particularly busy metro and commuter trains.
“At the same time we have to be realistic – completely replacing existing vehicles just isn’t an option. Instead, we have developed and incorporated new technology and materials into existing carriages to improve performance.
“Preventing flying objects is the key. The window coating we developed was also incredibly effective. Without it the windows are blown outwards – putting anyone outside, such as those standing on a platform, at risk from flying glass.
“A bomb on a train is always going to be devastating but what we are trying to do is find a way in which the vehicle itself can help to mitigate the impact of an attack.
“These are all low-cost, simple solutions that can be put on existing trains which could not only save lives but also reduce the attractiveness of our railways for potential terrorist attacks.”
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(Image: Newcastle University / PA Wire)