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