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Table 1 Chart of crowd density

From: Probing crowd density through smartphones in city-scale mass gatherings

Dynamics Density [ m 2 ] Behavior and risk
Standing 7.1 Critical crowd density for static crowds
Walking 0.43 Stream of pedestrians can maintain normal walking speed and avoid one another
2 Walking speed is reduced
3.57 Involuntary contact is experienced between people
5.55 Potentially dangerous crowd forces begin to develop
  1. Chart derived from the findings of Fruin [23] to assess the criticality of a crowd density. The density of a static crowd can exceed the density of a moving crowd before a critical values is reached.