A tank truck that didn’t stop on time collided with the car in front of it in Bologna Italy. The tank truck’s cargo probably petrol or diesel inflamed. A huge ’mushroom’ cloud of fire was created. Many people starved there not because of the colliding, but because of the consequenses the colliding had: the great explosion. To think of a suitable solution you have to take into account that it has to be either good in quality and not to expensive to make many users which have a lower budget. Maybe you can make a shield that absorbs the impact or you could design a substance that makes the petrol or diesel inside the tank truck inflammable and after it arrived at its destination you add something and it becomes flammable again.
If you know also a solution to this subject leave a comment.