The model considered the influence of the crowd density on the evacuation capability, and the capacity of the egress was taken as a variable rather than a constant as former.
Emergency evacuation Spaces have various different type of emergency evacuation queuing network, its service performance mainly depends on the extreme volume, evacuation service capacity, etc.
The intrinsic grille pattern forcing evacuation is instead by overfall pattern controlling one . This can improve the milling of the granule and capacity is increased by 15-20%.