Fig. 3 | Scientific Reports

Fig. 3

From: Experimental study on the synchronization mechanism and trigger characteristic density of vertical evacuation in crowds

Fig. 3

Schematic diagram of footprint sample extraction. (a) Velocity diagram of the front pedestrian. (b) Velocity variation diagram of the rear pedestrian. (c) Space–time diagram of the front and back pedestrians in X direction. (d) Space–time diagram of the front and back pedestrians in Y direction. (e) Pedestrian’s left foot track diagram. (f) Pedestrian’s right foot track diagram.

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