Low risk
Moving crowds with a density of up to four people per square meter are safe, because people have enough room to make decisions and move accordingly
2
4
people per
square metre
10
6
High risk
When the density is higher -
at about six people per square metre - bodies are jammed together so tightly that they can no longer choose where they go and they begin to behave like a fluid. Pressure waves can travel through them and they lose control
Low risk
Moving crowds with a density of up to four people per square meter are safe, because people have enough room to make decisions and move accordingly
4
2
people per
square metre
High risk
When the density is higher -
at about six people per square metre - bodies are jammed together so tightly that they can no longer choose where they go and they begin to behave like a fluid. Pressure waves can travel through them and they lose control
10
6
Low risk
Moving crowds with a density of up to four people per square meter are safe, because people have enough room to make decisions and move accordingly
2
4
people per
square metre
High risk
When the density is higher -
at about six people per square metre - bodies are jammed together so tightly that they can no longer choose where they go and they begin to behave like a fluid. Pressure waves can travel through them and they lose control
10
6