It is interesting to see that the force of only 6 or 7 people pushing in the same direction can cause up to 1,000 pounds of force-enough to break brick walls. During a deadly stampede(逃奔), people can even die standing up. People die when pressure is put to their bodies in a front to back direction, causing them not to be able to breathe.
If you are in a crowd, the first and most important thing is to make yourself familiar with your surroundings and find different exits. No matter where you are, make sure you always know how to get out.
Make yourself aware of the type of the ground you are standing on, and know that in a crowd of moving people wet ground can cause you to fall.
When in danger, a few seconds can make a difference, giving you the possibility of making use of your escaping route. Always stay closer to the escape route. If you find yourself in the middle of a moving crowd, do not fight against the pressure, do not stand still or sit down, because you can easily get trampled（踩踏）. Instead, move in the same direction of the crowd; make use of any space that may open up to move sideways to the crowd movement where the flow is weaker.
Keep your hands up by your chest, like a boxer-it gives you movement and protects your chest. If you fall, get up quickly. If you can't get up because you are injured, get someone to pull you up. If you have kids, lift them up.
If you fall and cannot get up, keep moving in the same direction of the crowd, or if that is not possible, then cover your head with your arms; do not lie on your stomach or back.
