A team of engineers have been experimenting with controlled explosions to understand the impact a bomb has on a train carriage.
New technology has been developed, along with materials which could be fitted into existing carriages, to limit the fallout of a terror attack on train and tube carriages.
- Controlled explosions were carried out on a decommissioned Tube carriage
- High speed cameras slowed down the blast, allowing the impact to be analysed in detail
- A similar test was carried out on a carriage specially built to reduce the damage caused by a bomb detonating inside it
- Blast-protection measures included tethering down ceiling panels, plastic coatings on windows, and the use of lighter energy-absorbing materials
- Engineers investigated dividing carriages with materials that soak up energy and reduce the impact of a blast wave
More top news
The Duke of Cambridge has condemned the "violent and apparently targeted murder" of the head of a wildlife conservation foundation.
Experts are warning that millions of middle-aged people are putting their health at risk due to a severe lack of exercise.
Teenagers across Wales, Northern Ireland and England are to get their results, with much of the focus on the effect of reforms in England.